| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 422007000 | Maintaining environment nondestructive to metal | 66 |
| 20080274013 | Method and composition for controlling corrosion in high density brines - A corrosion inhibitor package containing an acetylenic amine or acetylenic alcohol enables a sulfur-free method for protecting metal tubulars and equipment. The package has particular applicability in the protection of carbon steel tubulars in high density brines at elevated temperatures. The corrosion inhibitor package may contain a transition metal oxide as a corrosion inhibitor intensifier. | 11-06-2008 |
| 20100054990 | GAS CONTAINER CORROSION PROTECTION - A gas container and method of maintaining gas in a container and assembling a gas container are provided. The gas container includes at least a first section and a second section with the first and second sections being substantially hollow and movable relative to each other and a liquid seal for sealing gas within the container. The liquid seal is disposed between the first section and the second section, wherein a first anti-corrosion coating is provided so as to float on the surface of the liquid in the liquid seals, such that in use, the first anti-corrosion coating is caused to be applied to at least a portion of the second section during motion of the second section relative to the first section. | 03-04-2010 |
| 20110318223 | METHOD AND SYSTEM FOR CONTROLLING WATER CHEMISTRY IN POWER GENERATION PLANT - A method for controlling water chemistry in a power generation plant including a low-pressure feedwater heater ( | 12-29-2011 |
| 20120114523 | Polymeric corrosion inhibitors - The present invention relates to the use of a product obtainable by the reaction of an alkoxylated fatty amine having the formula (I) wherein R is a hydrocarbyl group having 8-24 carbon atom; each B is, independently, an alkyl group having 1-4 carbon atoms, a benzyl group, or the group (AO) | 05-10-2012 |
| 20120128530 | QUATERNARY AMMONIUM CORROSION INHIBITOR - The present invention relates to a corrosion inhibitor for use in the oil and gas exploration, recovery and processing industries. In particular, the invention relates to a quaternary ammonium compound suitable for use as such a corrosion inhibitor, to the manufacture of the quaternary ammonium compound, to compositions containing it, and to methods of using it. Quaternary ammonium compounds of the invention have the formula (I) in which R is C | 05-24-2012 |
| 20120288404 | Methods For Inhibiting Corrosion In Brazed Metal Surfaces And Coolants And Additives For Use Therein - Disclosed are coolants comprising brazed metal corrosion inhibitors. In one embodiment, the disclosed brazed metal corrosion inhibitor will comprise a polycarboxylic acid functional compound having the structure: | 11-15-2012 |
| 20120308432 | CORROSION INHIBITOR COMPOSITIONS COMPRISING TETRAHYDROBENZOTRIAZOLES AND OTHER TRIAZOLES AND METHODS FOR USING SAME - A composition with a corrosion inhibitor component having one or more tetrahydrobenzotriazoles and one or more other triazoles; wherein the tetrahydrobenzotriazoles are in a weight ratio to the other triazoles such that the composition decreases the General Corrosion rate, as measured by copper electrodes in the presence of 10 ppm sodium hypochlorite, by at least about 0.05 mpy relative to a corrosion inhibitor component which is 100% of the other triazoles. Also, a method of using this composition to inhibit corrosion of a metal component which has a metal or metal alloy which is corrodible in the presence of copper or copper corroding agents. | 12-06-2012 |
| 20120315185 | CORROSION INHIBITOR COMPOSITIONS COMPRISING TETRAHYDROBENZOTRIAZOLES SOLUBILIZED IN ACTIVATING SOLVENTS AND METHODS FOR USING SAME - A composition with one or more tetrahydrobenzotriazoles and one or more one or more tetrahydrobenzotriazole activating solvents, wherein the tetrahydrobenzotriazoles are solubilized in the activating solvents in an amount effective to inhibit corrosion of a metal or metal alloy which is corrodible in the presence of copper or copper corroding agents. Also, a method of using this composition to inhibit corrosion of a metal component which has a metal or metal alloy which is corrodible in the presence of copper or copper corroding agents. | 12-13-2012 |
| 20130089460 | INHIBITING CORROSION CAUSED BY AQUEOUS ALDEHYDE SOLUTIONS - Aldehydes useful as H | 04-11-2013 |
| 20130149191 | GEAR OIL HAVING LOW COPPER CORROSION PROPERTIES - A gear oil additive composition and gear oil composition comprising a organic polysulfide having at least 30 wt % of a dialkyl polysulfide compound or mixture of dialkyl polysulfide compounds, a thiadiazole; and at least one ashless phosphorus-containing wear inhibitor compound is disclosed as having low yellow corrosion in axles and transmissions. | 06-13-2013 |
| 20130156638 | Use of polyester polyamine and polyester polyquaternary ammonium compounds as corrosion inhibitors - The present invention relates to the use of a polyesteramine or a polyester polyquaternary ammonium compound as a corrosion inhibitor for metal surfaces, and to a method for protecting a metal surface from corrosion by contacting the metal surface with said corrosion inhibitor. | 06-20-2013 |
| 20130230425 | TWO-STEP ZINC PHOSPHATING PROCESS - Described are methods for treating a multi-metal assembly. The assembly has a first portion that includes an aluminum substrate and a second portion that includes a non-aluminum metal substrate. The methods include treating the multi-metal assembly by contacting the assembly with a zinc-phosphate composition and contacting the treated assembly with a composition that includes a Group IIIB and/or IVB metal and free fluoride. | 09-05-2013 |
| 20130251589 | Moisture and Ultraviolet Light Barrier Composition - A composition for the creation of a protective barrier on a wide variety of materials to prevent the deterioration and degradation caused by exposure to moisture and sun over time. | 09-26-2013 |
| 20130280124 | PREVENTING EQUIPMENT FOULING VIA CORROSION REDUCTION - An embodiment prevents equipment fouling (deposition of unwanted material) in an oil recovery system via implementing passivation of metallic components. By preventing or at least slowing or inhibiting corrosion of equipment or components via passivation, such as passivating heat exchangers, metallic piping, and the like, an embodiment in turn reduces fouling thereof. Other embodiments are described and claimed. | 10-24-2013 |
| 20130302210 | CORROSION INHIBITOR COMPOSITIONS, METHODS FOR MAKING AND METHODS FOR USING - A method for inhibiting corrosion on metallic surfaces in contact with a liquid hydrocarbon media is provided. A corrosion inhibitor composition is dispersed into a liquid hydrocarbon media to form a protective film on the metallic surfaces. The corrosion inhibitor includes a polyamic acid having structure I: | 11-14-2013 |
| 20140017119 | METHOD FOR CONTROLLING COMPOUNDS AND CONDITIONS IN A WET FLUE GAS DESULFURIZATION (WFGD) UNIT - The present invention relates generally to the field of emissions control and, in particular to a new and useful method and/or system by which to control various types of corrosion and/or precipitation issues in at least a portion of a wet flue gas desulfurization (WFGD) scrubber system. In one embodiment, the method and/or system of the present invention relies on the supply of at least one reducing agent to the slurry of a wet flue gas desulfurization scrubber to lower the oxidation reduction potential in the absorber slurry contained within the wet flue gas desulfurization scrubber. In still another embodiment, the method and/or system of the present invention control the oxidation-reduction potential in at least one bleed stream of an absorber slurry, filtrate, and/or solution from a wet flue gas desulfurization scrubber. | 01-16-2014 |
| 20140017120 | METHOD OF USING AN AMINE COMPOUND AS ANTICORROSIVE FOR A BOILER - The method of using an amine compound represented by the formula NH | 01-16-2014 |
| 20140056756 | CORROSION PROTECTION FORMULATION FOR PROTECTION AGAINST ZINC AND CADMIUM CORROSION - Corrosion protection formulation comprising (A) from 0.01 to 5% by weight of alkylamine ethoxylates as surfactant component, (B) from 0.01 to 10% by weight of corrosion inhibitors, (C) from 0 to 0.3% by weight of thickeners, (D) from 5 to <75% by weight of freezing point-lowering alcohols selected from among alkanols, glycols, polyalkylene glycols and glycerol, (E) from 5 to 90% by weight of vegetable and/or fatty oils, (F) from 0 to 5% by weight of water and (G) from 0 to 5% by weight of conventional emulsifiers. The formulation is particularly suitable for protecting zinc or zinc-plated components or surfaces or cadmium or cadmium-plated metallic surfaces against corrosion caused by runway deicing compositions used at airports. | 02-27-2014 |
| 20140119982 | Heat Transfer Fluids and Corrosion Inhibitor Formulations for Use Thereof - Disclosed herein is a heat transfer fluid concentrate comprising: greater than or equal to 85 weight percent of a freezing point depressant, based on the total weight of the heat transfer fluid concentrate; 50 to 2000 ppm of lithium ions; an azole compound; an inorganic phosphate; a carboxylic acid; and an acrylate based polymer, wherein the heat transfer fluid has a pH of 7.0-9.5. The heat transfer fluid concentrate can be used to make a heat transfer fluid. | 05-01-2014 |
| 20140119983 | Heat Transfer Fluids and Corrosion Inhibitor Formulations for Use Thereof - Disclosed herein is a heat transfer fluid concentrate comprising: greater than or equal to 90 weight percent of a freezing point depressant; 16 to 80 ppm of magnesium ions; an azole compound; an inorganic phosphate; a carboxylate; and an acrylate based polymer, wherein the heat transfer fluid concentrate has a pH of 7-9.5 and the weight ratio of acrylate based polymer to magnesium ions is 1 to 25. The heat transfer fluid concentrate can be used to make a heat transfer fluid. | 05-01-2014 |
| 20140241940 | METHOD FOR INHIBITING FOULING IN VAPOR TRANSPORT SYSTEM - Elimination and/or mitigation of fouling in a vapor transport systems, such as vent lines and scrubber feed lines may be accomplished using an antifouling additive. The method for employing the antifouling additive includes introducing into the vapor transport system an additive including a polar solvent and corrosion inhibitor wherein: the vapor transport system is substantially water free; the vapor transport system is used to transport acidic materials; the additive is a liquid at vapor transport system operating conditions; and the additive is stable at the vapor transport system operating conditions. | 08-28-2014 |
| 20140255250 | INHIBITION OF CORROSION IN BOILER SYSTEMS WITH ETHERAMINES - Aminoethers are used as corrosion inhibitors in boiler systems in which a working fluid comprising water with an aminoether corrosion inhibitor is circulated from a heater to a utilization site at which the working fluid gives up energy and decreases in temperature. A preferred class of aminoethers are the alkoxytriethyleneglycol-tert-alkylamines such as methoxy triethyleneglycol-tert-butylamine | 09-11-2014 |
| 20150037202 | ORGANIC DISULFIDE BASED CORROSION INHIBITORS - Disclosed are corrosion inhibitor compounds and compositions useful in applications relating to the production, transportation, storage, and separation of crude oil and natural gas. Also disclosed are methods of using the compounds and compositions as corrosion inhibitors, particularly in applications relating to the production, transportation, storage, and separation of crude oil and natural gas. | 02-05-2015 |
| 20150104349 | N-Alkyl-N'-Poly(Oxyalkyl)Hexahydropyrimidine-Quaternary Ammonium Salts And The Use Thereof As Corrosion Inhibitors - This invention relates to N-alkyl-N′-poly(oxyalkyl)hexapyrimidine-quaternary ammonium salts of the formulae (Ia)-(Ic) and mixtures thereof | 04-16-2015 |
| 20150118102 | THE USE OF NIOBATE CONTAINING COMPOUNDS AS CORROSION INHIBITORS - Corrosion inhibitors and methods for inhibiting or reducing corrosion are provided. The corrosion inhibitors include one or more niobate containing compounds. The corrosion inhibitors may be added to an aqueous system and inhibit the corrosion of a surface contained in the aqueous system. Illustrative examples of suitable niobate compounds are potassium niobate, ammonium niobate, and ammonium niobate oxalate. | 04-30-2015 |
| 20150118103 | CORROSION INHIBITING COMPOSITIONS AND METHODS - Compositions and methods for inhibiting the corrosion of metals in contact with an aqueous system are provided. The method of inhibiting corrosion includes maintaining effective amounts of (1) an amino acid-based polymer, such as a polyaspartic acid compound, and (2) a dispersible and/or soluble tin compound in the aqueous system. The corrosion inhibiting components of the treatment may be added simultaneously or separately into the water of the aqueous system, i.e., provided either in a single treatment product or as separate products. The single treatment single treatment product may include the amino acid-based polymer and a dispersible and/or soluble tin compound. Such a corrosion inhibiting composition may optionally also include a polycarboxylic acid chelating agent and/or a carboxylate/sulfonate functional copolymer. | 04-30-2015 |
| 20150118104 | CORROSION INHIBITION COMPOSITION FOR PIPELINES, PROCESS OF ELABORATION AND SYNTHESIS - Compounds and compositions are used as corrosion inhibitors for pipelines for crude oil containing water with high salt concentrations. The inhibitors are ionic liquids, imidazoles, benzotriazoles, and mixtures thereof. The composition includes two or more members of the inhibitors with a solvent. The inhibitors reduce corrosion of metallic surfaces of the pipelines containing crude oil having 0.2 and 40 wt % water, 10,000 to 70,000 ppm salt, and 9 to 600 ppm hydrogen sulfide. A synergic effect is provided by two or more different inhibitors. This synergy is derived from interactions with the metallic surface, among themselves or with the corrosive medium depending on the chain length, to inhibit the corrosion with decrease of the formulation dose. The composition can be a ternary formulation of the three families or two components of one family and a third component of a different family. | 04-30-2015 |
| 20150376516 | Method and Compositions for Inhibition of Naphthenic Acid Induced Corrosion - Corrosion induced by the presence of naphthenic acids in hydrocarbon fluids, particularly where such fluids are at elevated temperatures, may be inhibited or controlled through use of corrosion inhibiting compositions comprising a combination of a minor portion of a phosphorus-based constituent and a major portion of a sulfur-based constituent, nitrogen-based constituent, or combination thereof. In another embodiment the sulfur-based constituent and/or nitrogen-based constituent may be used without any phosphorus-based constituent. Where the compounds are appropriately selected, the compositions may inhibit corrosion to a degree comparable or nearly comparable to the inhibition provided by an equal amount of some conventional phosphorus-based compounds alone, but are significantly less likely to impair catalyst activity in downstream cracking and refinery operations. | 12-31-2015 |
| 20160010006 | COMPOSITIONS AND METHODS FOR INHIBITING FOULING IN HYDROCARBONS OR PETROCHEMICALS | 01-14-2016 |
| 20160017200 | HEAT TRANSFER FLUIDS AND CORROSION INHIBITOR FORMULATIONS FOR USE THEREOF - Heat transfer fluid concentrates include: a freezing point depressant, water, or a combination thereof; a carboxylate; an inorganic phosphate; an azole compound; calcium ions; and a water-soluble polymer. Ready-to-use heat transfer fluids and methods for preventing corrosion in heat transfer systems are described. | 01-21-2016 |
| 20160090655 | ANTI-CORROSION FORMULATIONS THAT ARE STABLE DURING STORAGE - The present invention relates to formulations for inhibiting the corrosion of the metals used in the oil industry, and more generally in all types of industries for drilling for fossil compounds or ores, such as gas or oil. The corrosion-inhibiting formulations are stable during storage, and have improved properties due to the presence of at least one compound having at least one triazine unit. The invention also relates to the use of at least one compound comprising at least one triazine unit in a corrosion-inhibiting formulation, as well as to the use of said corrosion-inhibiting formulation in the oil, gas and mining industry. | 03-31-2016 |
| 20160102234 | Extended Operation Engine Coolant Composition - The invention relates to an engine coolant composition, and a method of increasing the operational life of a coolant composition in an engine, wherein an isononanoic acid is incorporated into the generally glycol based coolant fluid in place of nitrous acid or its salt to reduce pitting corrosion on iron containing surfaces, and one or more hydroxybenzoic acids are incorporated. | 04-14-2016 |
| 20160115598 | NOVEL MILD STEEL CORROSION INHIBITOR COMPOUNDS - Compounds and methods of inhibiting corrosion of mild steel. Compounds disclosed herein are cationic and contain multiple functional motifs such as propargyl, cinnamaldehyde, isoxazolidine and hydrophobe. These compounds are found to be effective in inhibiting mild steel corrosion in HCl, H | 04-28-2016 |
| 20160161041 | Solid State Inhibitor for Pipeline and Flowline Applications - A system for inhibiting the corrosion of pipelines and flowlines. The system includes a solid formulation comprising a corrosion inhibitor; a container structured and arranged to permit the flow of fluids therethrough and confine the solid formulation; and a module structured and arranged to position the container within a flowpath of the pipeline or flowline and maintain its axial position. A method of inhibiting the corrosion of pipelines and flowlines and an apparatus for inhibiting the corrosion of pipelines and flowlines are also provided. | 06-09-2016 |
| 20160177105 | Corrosion Inhibiting Coating Based on Cerium Oxide and a Catecholic Polymer | 06-23-2016 |
| 20170233873 | OLEA EUROPAEA SUBSP. CUSPIDATE WOOD TAR OIL COMPOSITION AS AN ANTICORROSIVE FOR METALS IN AQUEOUS MEDIA. | 08-17-2017 |
| 422008000 | Using protective article (e.g., antitarnish fabric, etc.) | 2 |
| 20160017243 | CORROSION REDUCTION FOR SUPERCRITICAL WATER GASIFICATION THROUGH SEEDED SACRIFICIAL METAL - Technologies are presented for reducing corrosion M supercritical water gasification through seeded sacrificial metal particles. The metal panicles may be seeded into one or more material input streams through high pressure injection. Once distributed in the SCWG reactor, the metal particles may corrode preferentially to the metal SCWG reactor walls and convert into metal oxides that precipitate out above the supercritical point of water. The precipitated metal oxides may then be collected downstream of the SCWG reactor to be reprocessed back into seed metal at a smelter. The seeded metal particles may complete a process material cycle with limited net additional waste. | 01-21-2016 |
| 20160130707 | Rust Inhibitor Application System - A rust inhibition system in which a rust inhibitor compound is applied to a wand, which is then inserted into a cavity. The wand serves as a reservoir to provide the inhibitor compound in areas susceptible to corrosion. | 05-12-2016 |
| 422009000 | Using gaseous preservative, preservative added to gaseous phase of environment, or maintaining gaseous phase nondestructive | 10 |
| 20100303670 | REDUCING CORROSION IN A TURBOMACHINE - A method and system for reducing corrosion in a turbomachine. The method may include providing a process gas to a condenser, wherein the process gas contains a condensate having a pH level that is acidic. The condenser may be configured to remove at least a portion of the condensate from the process gas. Any condensate that is not removed is a remaining condensate. The method may further include increasing the pH level of the remaining condensate to above about 4 by mixing the process gas and the remaining condensate with an amount of pH modifier to form a mixture, and directing the mixture to a compressor coupled to the condenser, wherein the compressor is configured to compress the mixture. | 12-02-2010 |
| 20120009082 | Systems and methods for preventing and/or reducing corrosion in various types of tanks containers and closed systems - The present invention relates to methods for preventing and/or reducing the occurrence of corrosion in a variety of articles including, but not limited to, tanks (e.g., storage tanks, septic tanks, fuel tanks, etc.); containers (e.g., shipping containers, storage containers, etc.); semi-closed systems (e.g., fuel systems, septic systems, reservoirs, etc.); and/or closed systems (e.g., waste disposal systems, waste disposal drums or containers, etc.). In another embodiment, the methods of the present invention may be utilized to reduce and/or prevent corrosion in a variety of pipelines (e.g., gas/oil pipelines, water pipelines, sewage lines, etc.). More specifically, the present invention relates to methods for preventing and/or reducing the occurrence of corrosion in a variety of articles including, but not limited to, metallic tanks; metallic containers; pipelines; semi-closed systems; and/or closed systems which are constructed partially or totally from metal. (e.g., steel, iron, copper, brass, aluminum, etc.). | 01-12-2012 |
| 20130101460 | INHIBITING CORROSION IN AQUEOUS FILMS - In a process for the exploration for or the production of crude oil and/or natural gas, wherein metal objects are exposed to a gas for period of time sufficient to produce an aqueous film, a method including introducing a corrosion inhibitor into a fluid in contact with the subject metal under conditions sufficient to introduce the corrosion inhibitor into the aqueous film can be used to prevent excessive corrosion. Useful as the corrosion inhibitor is 2-sulfanylpropan-1-ol, also known as 2-mercapto-ethanol, and 2-mercapto-ethanol substituted with one or two methyl groups, and combinations thereof. | 04-25-2013 |
| 20140023553 | CORROSION INHIBITING SELF-EXPANDING FOAM - A corrosion prevention and control composition and method comprises combining primarily two-component polyurethane foam formed by reacting polyols with an isocyanate compound, and a 2 to 10 percent by weight of either an organic or inorganic gas-phase corrosion inhibitor. The closed cell foam provides a barrier protection for the underlying corrodible surface, while the inhibitor protects the metal from the absorbed moisture vapor, thereby preventing corrosion from occurring at the foam/metal interface. The resulting foam and inhibitor composition maintains better adhesion to the underlying corrodible structure in corrosive environments. | 01-23-2014 |
| 20140205496 | Corrosion Inhibiting Vapor for Use in Connection with Encased Articles - A volatile corrosion inhibiting agent is provided for dispersion of a vapor phase corrosion inhibitor in a vapor stream that is passed into a sheath or other casing enclosing a metal bar, cable, or other tension member to protect said tension member from corrosion. | 07-24-2014 |
| 422010000 | Manipulating gaseous environment for preservative purpose | 2 |
| 20100040505 | METHOD AND DEVICE FOR PREVENTING CORROSION OF A GAS INLET NOZZLE DURING NITRIC ACID CONDENSATION - By a method and a device for preventing corrosion on and in the region of a gas inlet nozzle during nitric acid condensation, contact of the condensing gas with the nozzle and with the surroundings of the nozzle are supposed to be minimized. | 02-18-2010 |
| 20120275951 | System for Decreasing Environmental Corrosion Factors and/or for Delivering One or More Corrosion Inhibiting Compounds to an Enclosure - The present invention generally relates to portable systems designed to deliver one or more corrosion inhibiting compounds to an enclosure, and to method for using same. More specifically, the present invention relates to portable, mobile, self-contained and/or discrete systems designed to deliver one or more corrosion inhibiting compounds to an enclosure while simultaneously purging and/or recycling the interior atmosphere of such an enclosure, and to methods for using same. In another embodiment, the present invention relates to portable systems designed to deliver one or more corrosion inhibiting compounds to an enclosure while simultaneously dehumidifying, purging and/or recycling the interior atmosphere of such an enclosure, and to methods for using same. Another aspect of the present invention is that the recycled atmosphere of the enclosure can be passed through an absorbent that removes and/or collects the volatilized metal corrosion inhibitor compound. The collected corrosion inhibitor can later be reused. | 11-01-2012 |
| 422011000 | Steam environment | 3 |
| 20100209289 | CORROSION MANAGEMENT SYSTEMS FOR CONTROLLING, ELIMINATING AND/OR MANAGING CORROSION - The present invention generally relates to corrosion management systems designed to deliver corrosion protection and/or the management of corrosion to a top portion of an enclosure (e.g., storage tanks, cisterns, containers, etc.). In one embodiment, the present invention relates to corrosion management systems designed to deliver corrosion protection and/or the management of corrosion to a top portion, or roof portion, of an enclosure where such a system includes one or more dispensers designed to deliver at least one corrosion inhibitor to a system designed to protect a top portion of an enclosure (e.g., storage tanks, cisterns, containers, etc.). | 08-19-2010 |
| 20110229371 | HYBRID WATER TREATMENT FOR HIGH TEMPERATURE STEAM GENERATORS - A steam generation system comprises: an oxygenated water treatment (OWT) sub-system configured to generate water having oxidizing chemistry; a steam generation sub-system configured to convert the water having oxidizing chemistry into steam having oxidizing chemistry; an attemperator or other injection device or devices configured to add an oxygen scavenger to the steam having oxidizing chemistry to generate steam having less oxidizing or reducing chemistry; and a condenser configured to condense the steam having less oxidizing or reducing chemistry into condensed water. | 09-22-2011 |
| 20160376711 | SYNERGISTICALLY ACTIVE MIXTURE FOR USE AS AN OXYGEN BINDER AND AS A CORROSION INHIBITOR IN AQUEOUS SYSTEMS - The invention relates to a synergistically active mixture consisting of two components a and b, namely and alkyl hydroxylamine component and an aryl phenol component, for use as oxygen binders in steam generators and boilers. The mixture according to the invention simultaneously acts as a corrosion inhibitor by means of the oxygen binding. | 12-29-2016 |
| 422012000 | Aqueous acid environment (i.e.,pH less than or equal to 4.1) | 7 |
| 20090169422 | CORROSION RESISTANCE OF INDUSTRIAL BRINE SOLUTIONS - An industrial brine which exhibits improved corrosion inhibition which contains a carbohydrate having a molecular weight in the range of about 180 to 342 and where said carbohydrate is present in a concentration sufficient to reduce the corrosion rate of said brine by at least about 70%. The brine includes chloride salts such as magnesium chloride, calcium chloride, sodium chloride and mixtures thereof. | 07-02-2009 |
| 20110070123 | CORROSION REDUCTION SYSTEM FOR POWER GENERATION PLANTS DURING SHUTDOWN - The invention involves a method of reducing corrosion inside power generation cycle equipment during plant shutdown and start-up periods by substantially reducing or totally eliminating internal contamination with corrosion causing acidic gases such as carbon dioxide and oxides of sulfur and nitrogen. Acidic gases are removed at their potential points of entry into the cycle either from ingressing ambient air or dissolved in make-up water in different kinds of filters. | 03-24-2011 |
| 20120045361 | Effective Novel Non-Polymeric and Non-Fouling Additive for Inhibiting High-Temperature Naphthenic Acid Corrosion and Method of Using the Same - The present invention relates to inhibition of high temperature naphthenic acid corrosion occurring in hydrocarbon processing units. The invention provides an effective novel non-polymeric and non-fouling additive for inhibiting high-temperature naphthenic acid corrosion, comprising an effective corrosion-inhibiting amount of a second phosphate ester wherein said second phosphate ester is obtained by reacting a first phosphate ester with an oxirane compound selected from the group consisting of butylene oxide, ethylene oxide, propylene oxide or any other oxirane compound or a combination thereof, preferably with butylene oxide, capably yielding said second phosphate ester, having a structure A or B, | 02-23-2012 |
| 20140119984 | WITHANOLIDE CORROSION INHIBITOR FOR CARBON STEEL - Acidic fluids used in wells or pipelines cause corrosion of carbon steel. Methods for inhibiting corrosion include contacting carbon steel with a fluid having an aqueous acidic phase including a material selected from the group consisting of: a material of a plant in the Solanaceae family, an extract of a material of a plant in the Solanaceae family, a withanolide, a source of a withanolide, a withanolide derivative, a source of a withanolide derivative, and any combination thereof. The methods have wide application in various kinds of operations involved in the production or transportation of oil and gas, such as acid stimulation in a well or remedial treatment in a pipeline. | 05-01-2014 |
| 20150010429 | Corrosion inhibitors - The invention provides the use of a surfactant as a corrosion inhibitor, wherein the surfactant is selected from derivatives of alkyl polyglucosides and derivatives of terpene alkoxylates, and mixtures thereof, provided that the derivatives are not sulfosuccinates. Also provided is a method of preventing or reducing corrosion of a metal component that is in contact with, or will be in contact with, an aqueous fluid, wherein the method comprises providing a surfactant and applying the surfactant to the metal component or adding the surfactant to the aqueous fluid that is in contact with, or will be in contact with, the metal component, wherein the surfactant is selected from derivatives of alkyl polyglucosides and derivatives of terpene alkoxylates, and mixtures thereof, provided that the derivatives are not sulfosuccinates. | 01-08-2015 |
| 20150308000 | ALKENYL SUCCINIC ACIDS OR ANHYDRIDES AS CORROSION INHIBITORS FOR METAL SURFACES - Methods of inhibiting corrosion in a benzene distillation or dryer unit are provided wherein alkenyl succinic acids or anhydrides (ASA) are brought into contact with metal surfaces thereby protecting the metal from an acidic corrosive medium flowing through the overhead. The benzene distillation column or drying tower may be utilized to purify benzene for subsequent feed of the purified benzene to an alkylation process such as in the alkylation of benzene by ethene to form ethylbenzene utilizing a zeolite alkylation catalyst. | 10-29-2015 |
| 20160152837 | METAL PRETREATMENT COMPOSITIONS COMPRISING SILANES AND ORGANOPHOSPORUS ACIDS | 06-02-2016 |
| 422013000 | Aqueous alkali environment (i.e., pH greater than or equal to 8.4) | 1 |
| 20080267813 | Corrosion inhibitor for protecting metallic materials in strongly alkaline medium - Corrosion inhibitor and method of protecting metallic materials in strongly alkaline medium by means of a corrosion inhibitor, characterized in that it contains an amine containing at least one CH group bound to the nitrogen. | 10-30-2008 |
| 422014000 | Essentially pure water environment | 10 |
| 422015000 | Using organic compound having phosphorus | 3 |
| 20100111756 | COMPOSITIONS AND METHODS FOR INHIBITING CORROSION IN AQUEOUS MEDIA - Methods and compositions are provided for corrosion inhibition treatment of aqueous systems such as cooling water systems. The methods include conjoint use of a polyvalent metal ion, such as Al or Mn and a corrosion inhibitor/deposit control agent (DCA) to the water system. The corrosion inhibitor DCA agent may be an organic compound such as a hydroxyacid, phosphonocarboxylic acid, polyhydroxysuccinic acid, or polymaleic acid or anhydride. | 05-06-2010 |
| 20100178197 | COMPOSITION AND METHOD FOR REDUCING WHITE RUST CORROSION IN INDUSTRIAL WATER SYSTEMS - This invention provides a novel, synergistic composition and method for reducing corrosion, particularly white rust corrosion, on galvanized metal surfaces in industrial water systems. The composition is a synergistic blend and preferably comprises from about 0 to about 10 weight percent of an amine-based white rust corrosion reducer and from about 10 to about 90 weight percent of a benzotriazole. In a method for using the synergistic blend, an effective amount of the blend is introduced onto the galvanized metal surface to form a barrier on the surface. After one or more time intervals, the composition is optionally overlayed onto the initial barrier by reintroducing an effective amount of the composition onto the galvanized metal surface. | 07-15-2010 |
| 20160040301 | Composition and Method for Treating White Rust - A composition and method of inhibiting white rust on galvanized steel in water system. The composition preferably comprises two parts, a first part comprising oleylamine and optionally comprising 2-diethylaminoethanol and cyclohexylamine, and a second part comprising phosphonobutane tricarboxylic acid, tolytrizole, and a polymer, and optionally comprising a tracer or sodium hydroxide. A preferred composition comprises two commercially available products, Cetamine V217 S and Chem-Aqua 31155. A preferred method of inhibiting white rust comprises adding the two parts of the composition or two commerically available products to the water in a water system to be treated in an amount sufficient to provide a concentration of the first part of around 200-500 ppm and of the second part of around 50-150 ppm. | 02-11-2016 |
| 422016000 | Using organic nitrogen compound other than ammonium salt | 5 |
| 20100111757 | METHODS FOR INHIBITING CORROSION IN AQUEOUS MEDIA - Methods are provided to inhibit corrosion of metals in contact with aqueous systems such as cooling water systems. In accordance with the methods, a hydroxyacid compound and orthophosphates are used to treat the system. Additionally, an adjuvant including poly(epoxysuccinic acids), an additional hydroxy acid, and a polycarboxylic acid, may be added to the system water. | 05-06-2010 |
| 20130309129 | INHIBITION OF CORROSION IN BOILER SYSTEMS WITH ETHERAMINES - Aminoethers are used as corrosion inhibitors in boiler systems in which a working fluid comprising water with an aminoether corrosion inhibitor is circulated from a heater to a utilization site at which the working fluid gives up energy and decreases in temperature. A preferred class of aminoethers are the alkoxytriethyleneglycol-tert-alkylamines such as methoxy triethyleneglycol-tert-butylamine. | 11-21-2013 |
| 20140044593 | CORROSION INHIBITOR COMPRISING AZOLE AND CELLULOSE NANOCRYSTALS - The present invention relates to a corrosion inhibitor. The corrosion includes an azole and a plurality of cellulose nanocrystals. The cellulose nanocrystals are combined with monovalent cationic counterions according to one aspect. The monovalent cationic counterions are sodium ions according to one example. The cellulose nanocrystals may be in dried solid form. According to a further aspect, there is provided a process for the use of cellulose nanocrystals in inhibiting corrosion. The process includes the step of providing an azole. The process further includes the step of adding cellulose nanocrystals to the azole. According to another aspect, there is provided a process for inhibiting corrosion of metal equipment where water can reside. The process includes adding an effective corrosion inhibiting amount of a corrosion inhibitor composition. The corrosion inhibitor composition includes an azole and cellulose nanocrystals. | 02-13-2014 |
| 20150354067 | WATER SOLUBLE SUBSTITUTED IMIDAZOLINES AS CORROSION INHIBITORS FOR FERROUS METALS - Corrosion inhibitors and methods for inhibiting or reducing corrosion of metallic surfaces are provided. A corrosion inhibitor composition may include a water soluble substituted imidazoline or a hydrolysis product thereof. A method of inhibiting corrosion of a metallic surface in an aqueous system includes the step of contacting the surface with an effective amount of a corrosion inhibitor composition. The corrosion inhibitor composition may include other components, such as zinc, and it may also exclude phosphorus. | 12-10-2015 |
| 20190144395 | NOVEL ONE-POT HOMOGENEOUS PROCESS FOR THE LARGE SCALE MANUFACTURE OF 2-SUBSTITUTED BENZIMIDAZOLES | 05-16-2019 |
| 422017000 | Using organic carboxylic acid or salt thereof | 2 |
| 20140314620 | APPLICATION OF OXYGEN SCAVENGERS TO GLYCOL SYSTEMS - An oxygen scavenger composition is effective in reducing oxygen-induced corrosion in aqueous systems that contain water, oxygen and a significant proportion (at least about 20 wt %) of a glycol, such as monoethylene glycol (MEG). The oxygen scavenger composition contains a sulfite, a transition metal salt, and a stabilizer to enhance the kinetics of oxygen removal (scavenging). The oxygen scavenger composition is particularly suitable when the transition metal salt component includes at least two different transition metals together, such as Ni and Co, or Ni and Mn. | 10-23-2014 |
| 20150118105 | CHEMICAL INHIBITION OF PITTING CORROSION IN METHANOLIC SOLUTIONS CONTAINING AN ORGANIC HALIDE - Pitting corrosion of stainless steel occurs in solutions of organic acid, such as tartaric acid, in an electrolyte solution with methanol. However, methanolic solutions containing at least one organic halide and at least one organic hydroxyacid and some water provide reduced pitting corrosion of stainless steel. The organic hydroxyacid may be a hydroxy acid containing 2 to 10 carbon atoms with at least one hydroxyl group and at least one carboxylic acid group, in a non-limiting example, glycolic acid. The pH of the methanolic solution may range from about 3.5 to about 8. | 04-30-2015 |
