| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 205705000 | Removing foreign material (e.g., cleaning, etc.) | 19 |
| 20120073984 | METHOD FOR RECOVERING METALLIC LITHIUM - An object is to recover metallic lithium from metallic lithium on which an unnecessary substance is formed without discarding the metallic lithium on which an unnecessary substance is formed. The present invention relates to a method for recovering metallic lithium in such a manner that metallic lithium on which a substance is formed is reacted with nitrogen to form lithium nitride; the lithium nitride is reacted with carbon dioxide to form lithium carbonate; the lithium carbonate is reacted with hydrochloric acid to form lithium chloride; the lithium chloride and potassium chloride are melted; and electrolysis is applied to the melted lithium chloride and potassium chloride. | 03-29-2012 |
| 20120168320 | SYSTEM AND METHOD FOR SCALE REMOVAL FROM A NICKEL-BASED SUPERALLOY COMPONENT - A system for cleaning scale from a nickel-based superalloy component is described. The system includes a molten salt, caustic alkaline solution, and an electrical charging device that provides at least 3 V DC to the molten salt bath. The system further includes a water rinse, a soap and water solution, an acid pickling solution, and an acetone rinse. The water rinse is air-agitated, the soap and water solution is acoustically coupled to an ultrasonic device, and the acid pickling solution is fluidly coupled to an agitator. The system includes a component positioning device structured to selectively, and successively, position the component within the molten salt bath, the water rinse, the soap and water solution, the acid pickling solution, the soap and water solution again, and the acetone rinse. The system includes a number of heating devices to provide selected temperatures to various selected solutions. | 07-05-2012 |
| 20140138257 | SYSTEM FOR EXTRACTION OF TRITIUM FROM LIQUID METAL COOLANTS - A method for removing tritium from liquid lithium includes mixing the liquid lithium containing trace amounts of tritium with a molten salt and forming a salt of lithium and tritium. The method also includes separating the liquid lithium from the salt of lithium and tritium and circulating the molten salt in an electrolyzer to form molecular tritium. The method further includes bubbling an inert gas through the electrolyzer to remove the molecular tritium and circulating the argon and removed molecular tritium in a titanium getter to recover the tritium. | 05-22-2014 |
| 20150144503 | METHODS AND SYSTEMS FOR TREATING PETROLEUM FEEDSTOCK CONTAINING ORGANIC ACIDS AND SULFUR - Methods and systems of treating petroleum feedstock contaminated with naphthenic acids and sulfur are disclosed. The methods and systems include heating the petroleum feedstock to decompose the naphthenic acids, pressurizing to minimize the portion in the vapor phase, sweeping water vapor and carbon dioxide into a headspace with a non-oxidizing gas, removing water vapor and carbon dioxide from the headspace, reacting the sulfur with an alkali metal and a radical capping gas to convert the sulfur into alkali sulfides, and removing the alkali sulfides. Also disclosed is reacting the naphthenic acid with water and an oxide or hydroxide of an alkaline earth element to convert the naphthenic acid into naphthenates, removing water, ketonizing, removing oxides or carbonates, reacting the sulfur with an alkali metal and a radical capping gas to convert the sulfur into alkali sulfides, and removing the alkali sulfides. | 05-28-2015 |
| 20150299869 | METHOD OF CLEANING OF STEEL SHEET SURFACE AND USE OF A DETERGENT COMPOSITION THEREOF - The present invention provides a method of manufacturing a steel sheet using a detergent for a steel sheet having a good washing property for the oil stain even at a low temperature. The method of manufacturing of the present invention is a method of manufacturing a steel sheet, comprising: a washing step of soaking a steel sheet to which a stain is stuck in a detergent for a steel sheet for washing and a rinsing step of rinsing with water the steel sheet that is soaked and washed after the washing step, wherein the detergent for a steel sheet comprises: an alkali agent, one or more organic acid(s) or salt(s) selected from lactic acid, oxalic acid, citric acid, and salts of these, a nonionic surfactant represented by the general formula (1), one or more chelating agent(s) selected from gluconic acid, ethylenediaminetetraacetic acid, and salts of these, and water. | 10-22-2015 |
| 20160000947 | Treatment System for Cleaning a Component, in Particular an Implant Part, Contaminated with a Biofilm - A treatment system ( | 01-07-2016 |
| 205709000 | With solid-workpiece moving contact (e.g., brushing, etc.) | 1 |
| 20120000793 | ELECTROCHEMICAL REMOVAL OF TANTALUM-CONTAINING MATERIALS - A method of cleaning metal-containing deposits from a metal surface of a process chamber component includes immersing the metal surface in an electrochemical cleaning bath solution. A negative electrical bias is applied to the metal surface to electrochemically clean the metal-containing deposits from the metal surface. The cleaning method is capable of removing metal-containing deposits such as tantalum-containing deposits from the metal surface substantially without eroding the surface, and may be especially advantageous in the cleaning of components having textured surfaces. | 01-05-2012 |
| 205710000 | With changing current | 1 |
| 20090114549 | RFID-CONTAINING CARRIERS USED FOR SILICON WAFER QUALITY - A carrier configured for use in a lapping machine includes a body having a first opening for carrying a work piece during operation of the lapping machine. A device is arranged and disposed in the body. The device is configured to retain information readable by a reading device for identifying the body. | 05-07-2009 |
| 205712000 | Nonelemental material from ferrous metal | 2 |
| 205714000 | Using acidic electrolyte | 2 |
| 20140034514 | ELECTROLYTE FOR REMOVING METAL-CARBIDE/NITRIDE COATINGS OR METAL-CARBIDE-NITRIDE COATINGS AND REMOVING METHOD USING SAME - An electrolyte for removing metal-carbide/nitride coatings or metal-carbide-nitride coatings from substrates, the electrolyte includes an acid, an inhibiter and a complexant. The acid is a mixture of a sulfuric acid and a weak acid. The inhibiter is an organic compound containing hydrophilic group, lipophilic group, and at least one polar group selected from nitrogen-containing group, sulfur-containing group, and hydroxyl group. The complexant is capable of complexing with Fe | 02-06-2014 |
| 205715000 | Containing one or more phosphoric acids | 1 |
| 20160201214 | TARGETED HEAT EXCHANGER DEPOSIT REMOVAL BY COMBINED DISSOLUTION AND MECHANICAL REMOVAL | 07-14-2016 |
| 205717000 | Entire identifiable elemental layer or portion removed (e.g., stripping, etc.) | 5 |
| 20080277288 | Method For Removing A Coating From A Component - Method for removing coatings which have been applied to components such as turbine blades. After the end of the product life cycle of the turbine blades has been reached, these coatings can be removed to reuse the turbine blades after recoating. The coating, containing in particular chromium oxide compounds is removed via a stripping bath by adding alkanolamine compounds or salts containing such compounds as the inhibitor. These compounds advantageously prevent new chromium oxide compounds from being produced during the stripping of the turbine blades or the chromium oxide compounds present in the coating are removed effectively, so that the chromium oxide compounds cannot have an adverse influence on the removal rate of the stripping process. Advantageously reduced treatment times can thereby be achieved for the stripping process. By adding 2% triethanolamine, the treatment time in hydrochloric acid for example can be reduced to below one hour. | 11-13-2008 |
| 20080283416 | Process for Electrochemical Stripping of Components - A process for electrochemical stripping of components is disclosed. An operating point of the electrochemical stripping is determined under actual process conditions prior to the actual electrochemical stripping and is determined anew continuously, i.e., monitored and optionally adjusted during the electrochemical stripping. | 11-20-2008 |
| 20090120804 | APPARATUS, METHODS, AND COMPOSITIONS FOR REMOVING COATINGS FROM A METAL COMPONENT - Apparatus and methods for removing coatings from metal components, such as metal components used in aircraft and other aerospace vehicles and the oil industry, as well as aqueous bath compositions. The metal component may be DC coupled with a counter electrode and immersed in an aqueous bath that includes an active oxygen source and a ligand in a composition effective to remove the coating. The aqueous bath may include hydrogen peroxide as the active oxygen source and may be maintained in a specific pH range if the temperature of the aqueous bath is controlled. In an alternative embodiment, the composition of the aqueous bath may include a non-peroxide active oxygen source, such as sodium perborate, and be maintained in a different specific pH range. An oxygen sensor may be provided to periodically monitor the concentration of active oxygen in the aqueous bath. | 05-14-2009 |
| 20090308761 | RECAST REMOVAL METHOD - A method of removing recast from a substrate is disclosed. The method includes chemically removing the recast using an etchant, which provides a visual indication of the presence of the recast when the part has been removed from the etchant. One example chemical etchant is comprised of a sulfuric acid solution that includes sodium chloride, sodium fluoride and ammonium persulfate. After chemical removal of the recast from the substrate, the recast is physically removed from the substrate, for example, by media blasting. The chemical and physical recast removal process can be repeated as desired. To ensure that all the recast has been removed, the substrate is wiped, for example, using a cloth. If all the recast has been removed, the cloth will not change in appearance or color. | 12-17-2009 |
| 205720000 | Nickel removed | 1 |
| 20100126878 | Method for Electrolytic Stripping of Spray Metal Coated Substrate - A method for stripping a fused thermal spray metal coating from the surface of a soft metallic substrate. The steps for the method include: immersing the coated metallic substrate in an aqueous solution of chromic acid, peroxide, and a second acid; immersing a metal cathode in the aqueous solution; applying a positive potential to the fused spray metal coated substrate and a negative potential to the metal cathode to generate a direct current between the substrate and the cathode; where the current is applied for a sufficient time to remove the coating. This method permits the electrochemical removal of fused and impermeable thermal spray metal coatings. | 05-27-2010 |
| 205723000 | Using acidic electrolyte | 4 |
| 20090078584 | Process for producing scorodite and recycling the post-scorodite-synthesis solution - The present invention is to provide a process for producing a scorodite that can shorten the time required for synthesizing the scorodite, and further can improve the yield of arsenic and iron into the scorodite. Accordingly, a process for producing a crystalline scorodite from an acidic aqueous solution containing pentavalent As and trivalent Fe, wherein the synthesis of the crystalline scorodite is performed after the molar ratio of trivalent Fe to pentavalent As contained in the acidic aqueous solution is adjusted to be equal to or more than 0.9 and equal to or less than 1.1 is provided. | 03-26-2009 |
| 20100187127 | MEMBRANE RESTORATION - Embodiments include membrane restoration process. A membrane can be restored by replacing an anolyte and a catholyte of a cell with a solution having an organic acid. The cell can include an anode, a cathode and a membrane fouled with a metal. A cheleate can be formed with the metal and the organic acid of the solution and an electric current can be provided between the anode and the cathode of the cell to protect the cell from corrosion while forming the chelate. | 07-29-2010 |
| 20130037418 | RECLAIMING METAL FROM ARTICLES - Techniques and systems for reclaiming metals from articles having one or more components containing or coated with copper are provided. An example technique may include providing an article having one or more components containing or coated with copper, providing a barrel disposed in a container, the container containing an electrolytic solution and a copper starting pole component, positioning a plurality of electrically conductive particles and the article within the barrel, and separating one or more copper ions from at least a portion of the article by electrolysis. | 02-14-2013 |
| 20140332404 | Process for Producing High-Purity Tin - High purity tin and tin alloy are provided in which the respective contents of U and Th are 5 ppb or less, the respective contents of Pb and Bi are 1 ppm or less, and the purity is 5N or higher, provided that this excludes the gas components of O, C, N, H, S and P. A cast ingot of the tin or alloy has an α ray count of 0.001 cph/cm | 11-13-2014 |
