Class / Patent application number | Description | Number of patent applications / Date published |
423364000 | Carbon containing | 58 |
20120093706 | COPOLYMERIZATION OF PROPYLENE OXIDE AND CARBON DIOXIDE AND HOMOPOLYMERIZATION OF PROPYLENE OXIDE - Copolymers of propylene oxide and carbon dioxide and homopolymers of propylene oxide are made using two dimensional double metal cyanide complexes having the formula Co[M(CN) | 04-19-2012 |
423365000 | And oxygen containing (e.g., fulminate, cyanate, etc.) | 4 |
20080286188 | Process for the Preparation of a Urea-Comprising Aqueous Stream - The invention relates to a process for the preparation of a urea-comprising aqueous stream, that is suitable for use in a unit for the reduction of NO | 11-20-2008 |
20080292526 | Method for the Production of Double Metal Cyanide Complex Catalysts - Process for preparing double metal cyanide catalysts of the general formula (I) | 11-27-2008 |
20090191114 | METHOD FOR PREPARING AMMONIUM BICARBONATE WITH FLUE GAS AND DEVICES THEREOF - The present invention relates to a method for preparing ammonium bicarbonate with flue gas and device thereof. The method includes quantitatively collecting flue gas with a carbon dioxide concentration of about 8% to about 15% (volume), decreasing the temperature of the flue gas to about 50° C. or less with an air-cooling apparatus, then increasing the pressure of the flue gas to about 0.4 to about 1.2 MPa, and finally allowing the flue gas to react with liquid ammonia to produce ammonium bicarbonate. The device for preparing ammonium bicarbonate with flue gas includes a flue gas collecting apparatus, an air-cooling apparatus, a gas storing and pressurizing apparatus and an ammonium bicarbonate synthesizing apparatus. The issue of energy consumption brought by conventional cooling approach using cooling water is addressed by using an air-cooling apparatus. Meanwhile, the use of CO | 07-30-2009 |
20090269267 | Continuous method and apparatus for functionalizing carbon nanotube - The present invention relates to a continuous method and apparatus for functionalizing a carbon nanotube, and more specifically, to a continuous method and apparatus for functionalizing a carbon nanotube including preparing a functionalized product by functionalizing a carbon nanotube solution including nitro compound according to the following Chemical Formula 1 and carbon nanotube mixture including an oxidizer for forming nitric acid under subcritical water or supercritical water condition of 50 to 400 atm and a continuous method and apparatus for functionalizing a carbon nanotube under subcritical water or supercritical water condition using nitro compound without using strong acids or strong bases. | 10-29-2009 |
423371000 | Ternary compound | 40 |
20080317655 | Process for producing shaped articles of inorganic cyanides and products obtainable by the process - The invention relates to a method for producing shaped inorganic cyanide bodies, especially made of alkaline metal cyanides and alkaline earth metal cyanides, by pressing particulate inorganic cyanide obtained by means of a crystallization method. According to the invention, a cyanide crystallate separated from a mother liquor by means of a solid-liquid separation device and containing 2-15 wt. % water is fed to a forming device without the addition of an auxiliary forming agent and placed under pressure and compressed to form shaped bodies containing 0.1-12 wt. % water. The amount of water contained by the shaped bodies is always less than that contained in the crystallates used for the production thereof. Preferably, the crystallite is pressed out of a rotary filter or a centrifuge at a temperature of more than 40° C. to form shaped bodies containing 0.2-6 wt. % residual water. The inventive method can be carried out in a more economical manner than previously known methods using dried cyanide. The invention also relates to shaped inorganic cyanide bodies obtained according to said method. | 12-25-2008 |
20100143232 | METAL BINARY AND TERNARY COMPOUNDS PRODUCED BY CATHODIC ARC DEPOSITION - The present invention allows the relatively easy production of binary and ternary compounds of metals, including noble metals. Embodiments of the invention allow, for the first time, the production of novel compositions of metal compounds, such as thick, stress-free single-phase binary and ternary compositions of metals, and porous compositions of such compounds. As such, the present invention allows for the production of metal compounds and/or compositions of matter thereof that have not before been possible, thereby providing for important new materials that find use in a multitude of different applications, including medical device and non-medical device applications. | 06-10-2010 |
20100150811 | Preparation of Nanosized Copper (I) Compounds - A method of making nanosized copper (I) compounds, in particular, copper (I) halides, pseudohalides, and cyanocuprate complexes, in reverse micelles or microemulsions is disclosed herein. The method of the invention comprises (a) dissolving a copper (II) compound in the polar phase of a first reverse micelle or microemulsion, (b) dissolving a copper (II) to copper (I) reducing agent or a pseudohalide salt in the polar phase of a second sample of the same reverse micelle or microemulsion, (c) mixing the two reverse micelle/microemulsions samples to form nanometer sized copper (I) compounds and (d) recovering said nanometer sized copper (I) compounds. The present invention is also directed to the resultant nanosized copper (I) compounds, such as copper (I) chloride, copper (I) cyanide, and potassium cyanocuprate complexes having an average particle size of about 0.1 to 600 nanometers. | 06-17-2010 |
20110038780 | NICKEL-CARBONITRIDE SPHERES AND METHOD OF MAKING THE SAME - Disclosed is a method for preparation of a nickel-carbonitride sphere, which includes preparing a melamine-formaldehyde resin, adding a nickel salt and a surfactant to the melamine-formaldehyde resin to prepare a nickel-melamine resin mixture, and conducting spray pyrolysis for the mixture to produce nickel-containing powder including nickel-carbonitride spheres. In addition, this method may further include thermal treatment of the nickel-containing powder. | 02-17-2011 |
20160251230 | Fenton reagent improved cyanation and usage thereof | 09-01-2016 |
423372000 | Hydrogen cyanide | 33 |
20100111806 | NITROGEN-CONTAINING CARBON MATERIAL AND PROCESS FOR PRODUCING THE SAME - The present invention provides a process for producing a nitrogen-containing carbon material, comprising a first step of subjecting azulmic acid to a first heat treatment in an oxygen-containing gas atmosphere, thereby preparing a heat-treated product, and a second step of subjecting the heat-treated product to a second heat treatment in an inert gas atmosphere. | 05-06-2010 |
20110033362 | Process for Producing Hydrocyanic Acid - The present invention relates to an improved process for producing hydrocyanic acid by reaction of ammonia with methane in which a small amount of at least one sulphur-containing compound corresponding to the general formula R S (S) | 02-10-2011 |
20110129406 | METAL FIBERS FOR CATALYST NON-WOVENS - A metal fiber based on one or several elements from the group of platinum, palladium, rhodium, ruthenium, and iridium with 0 to 30% by weight of one or several additional alloy elements from the group of nickel, cobalt, gold, rhenium, molybdenum, and tungsten, contains 1 to 500 ppm by weight of boron or phosphorus. A non-woven material or netting, in particular for the production of nitrogen oxide or for the production of hydrocyanic acid, is made of such fibers. For the production of fibers based on noble metals having up to 30% by weight of additional alloy metals by drawing the fibers from a melt, the melting point of the metal is reduced by at least 400 ° C., before drawing of the fibers, by additionally alloying with boron or phosphorus, and the boron or the phosphorus is removed again from the fibers. | 06-02-2011 |
20110223091 | Spinning Fluids Reactor - A spinning fluids reactor, includes a reactor body ( | 09-15-2011 |
20120251430 | NITROGEN OXIDE AND HYDROCYANIC ACID PRODUCTION METHOD - A metal fiber based on one or several elements from the group of platinum, palladium, rhodium, ruthenium, and iridium with 0 to 30% by weight of one or several additional alloy elements from the group of nickel, cobalt, gold, rhenium, molybdenum, and tungsten, contains 1 to 500 ppm by weight of boron or phosphorus. A non-woven material or netting, in particular for the production of nitrogen oxide or for the production of hydrocyanic acid, is made of such fibers. For the production of fibers based on noble metals having up to 30% by weight of additional alloy metals by drawing the fibers from a melt, the melting point of the metal is reduced by at least 400° C., before drawing of the fibers, by additionally alloying with boron or phosphorus, and the boron or the phosphorus is removed again from the fibers. | 10-04-2012 |
20160068404 | PROCESS FOR HEAT RECOVERY FROM AMMONIA STRIPPER IN ANDRUSSOW PROCESS - A hydrogen cyanide production process that recovers ammonia and hydrogen cyanide from a crude hydrogen cyanide product comprising from 25 to 50 vol. % water. When heat is recovered from the ammonia stripper, in the form of low pressure steam, and the steam can be integrated with the refining of hydrogen cyanide. | 03-10-2016 |
423373000 | Employing formamide or formate as reactant | 8 |
20100021365 | METHOD FOR PRODUCING PRUSSIC ACID - Process for preparing hydrocyanic acid, which comprises catalytic dehydration of gaseous formamide to give a product mixture comprising hydrocyanic acid, water, formamide, ammonia, CO and high boilers, separation of the product mixture by condensation of a condensate comprising water, formamide, high boilers and possibly ammonia and hydrocyanic acid from the product mixture obtained and partial or total recirculation of the condensate into a heat exchanger located downstream of the reactor. | 01-28-2010 |
20100284889 | METHOD FOR PRODUCING HYDROCYANIC ACID BY CATALYTIC DEHYDRATION OF GASEOUS FORMAMIDE - A process for preparing hydrogen cyanide by catalytically dehydrating gaseous formamide in a tubular reactor formed from at least one reaction channel in which the catalytic dehydration proceeds, said reaction channel having an inner surface which is formed from a material having an iron content of ≧50% by weight, and no additional catalysts and/or internals being present in the reaction channel, and the at least one reaction channel having a mean hydraulic diameter of from 0.5 to 6 mm, and a reactor with the features specified above and the use of the inventive reactor for preparing hydrogen cyanide by catalytically dehydrating gaseous formamide. | 11-11-2010 |
20100316552 | PROCESS FOR PREPARING HYDROGEN CYANIDE BY CATALYTIC DEHYDRATION OF GASEOUS FORMAMIDE - A process for preparing hydrogen cyanide, comprising the provision of gaseous formamide by evaporating liquid formamide in an evaporator (step i)) and the catalytic dehydration of the gaseous formamide (step ii)), and also an apparatus for performing the process according to the invention, comprising at least one microevaporator and a tubular reactor, and the use of a microevaporator for evaporating formamide in a process for preparing hydrogen cyanide from formamide. | 12-16-2010 |
20110033363 | PROCESS FOR PREPARING HYDROCYANIC ACID BY CATALYTIC DEHYDRATION OF GASEOUS FORMAMIDE - DIRECT HEATING - Process for preparing hydrocyanic acid by catalytic dehydration of gaseous formamide, wherein the dehydration of formamide is coupled with an exothermic reaction by the reactor used in the dehydration comprising two separate fluid paths which are separated by a common reactor wall, with one fluid path being provided for the dehydration of formamide and the second fluid path being provided for the exothermic reaction. | 02-10-2011 |
20110182798 | SINGLE-CHAMBER VAPORIZER AND USE THEREOF IN CHEMICAL SYNTHESIS - The invention relates to an improved process for vaporizing organic compounds and the further conversion thereof. | 07-28-2011 |
20150044122 | PRESSURE-REGULATED MULTI-REACTOR SYSTEM - A device and a method are provided for reacting a starting material in at least two reactors connected to each other, including the reacting of the starting material in a first reactor to a first product, removing the first product from the first reactor using a jet pump, wherein a negative pressure zone of the jet pump is operationally connected to the first reactor, so that the first product of the first reactor moves through the negative pressure zone in a propulsion jet of a propulsion medium of the jet pump, conducting the propulsion medium having the first product into a second reactor, wherein the first product is allowed to react into a second product, separating the second product from the propulsion medium and discharging the separated second product. | 02-12-2015 |
20160009565 | PROCESS FOR THE SYNTHESIS OF HYDROCYANIC ACID FROM FORMAMIDE PACKED AFTER-REACTOR | 01-14-2016 |
20160052793 | METHOD FOR SYNTHESIZING HYDROCYANIC ACID FROM FORMAMIDE - CATALYST - Process for preparing hydrocyanic acid by thermolysis of gaseous formamide in a reactor in the presence of a catalyst, wherein
| 02-25-2016 |
423375000 | Employing ammonia as reactant | 19 |
20110020207 | METHOD FOR PRODUCING HYDROGEN CYANIDE IN A PARTICULATE HEAT EXCHANGER CIRCULATED AS A MOVING FLUIDIZED BED - The invention relates to a process for continuously preparing hydrogen cyanide by reacting ammonia with hydrocarbons, the reaction gas mixture being brought to reaction temperature in the fluidized bed by means of indirect heating by contact with a particulate heat transferrer, and which is characterized in that the heat transferrer is conducted cyclically in a transported fluidized bed, the heat transferrer being heated in an ascending transport stream and being contacted with the reaction gas mixture in a descending transport stream. | 01-27-2011 |
20150360965 | APPARATUS AND METHOD FOR DECREASING HUMIDITY DURING AN ANDRUSSOW PROCESS - The system and methods described herein solve problems of inaccurate flow control, loss of optimum reactant gas feed ratios, and the associated inefficiencies brought on by variable humidity in reactant feedstream gases during production of hydrogen cyanide by an Andrussow process. | 12-17-2015 |
20160046498 | PROCESS FOR STABILIZING HEAT EXCHANGER TUBES IN ANDRUSSOW PROCESS - The present invention relates to an improved process for producing hydrogen cyanide involving a heat exchanger comprising a plurality of tubes, wherein each of the plurality of tubes comprises a ceramic ferrule extending through the entrance of the tube, each ferrule comprising an insulation layer surrounding at least a portion of the ferrule, and one or more washers, wherein at least one of the one or more washers surrounds the ferrule above the entrance of the tube, wherein the ceramic ferrule is spaced apart from the tube. It further relates to a reaction apparatus for producing hydrogen cyanide involving a heat exchanger comprising a plurality of tubes, wherein each of the plurality of tubes comprises a ceramic ferrule extending through the entrance of the tube, each ferrule comprising an insulation layer surrounding at least a portion of the ferrule, and one or more washers, wherein at least one of the one or more washers surrounds the ferrule above the entrance of the tube, wherein the ceramic ferrule is spaced apart from the tube. It further relates to the heat exchanger for use in this improved process and reaction apparatus. | 02-18-2016 |
20160167975 | HYDROGEN CYANIDE MANUFACTURING PROCESS WITH SECOND WASTE HEAT BOILER | 06-16-2016 |
20160194211 | OPERATIONAL CONTROLS FOR INERT GAS BLANKETING FOR ANDRUSSOW PROCESS | 07-07-2016 |
423376000 | And using catalyst | 14 |
20080317656 | Process of Catalytic Ammoxidation for Hydrogen Cyanide Production - A process for the ammoxidation of an alcohol feed, such as methanol, or a nitrile feed, such as propionitrile, or a mixture thereof, to form hydrogen cyamide uses a modified Mn—P catalyst having the following empirical formula: | 12-25-2008 |
20090304569 | Activated ignition promoters for metal catalyzed reactions - The inventors have discovered catalyst ignition promoters comprising one or more activated metals. The catalyst ignition promoters are easily prepared from a number of metal sources, including spent catalysts, are activated quickly and provide effective catalyst ignition independent of the quality of the metals that comprise the catalytic converter. The one or more activated metals comprising the ignition promoter are prepared by contacting them with one or more chemical treatments. The activated metal components are prepared into suitable articles, referred to as ignition strips, that are placed in contact with one or more oxidative coupling catalysts, typically in the form of gauzes. The ignition promoters reduce the activation energy for catalyst ignition (also referred to “light off”), enabling ignition of catalyst gauzes that are new, used, contaminated, damaged and combinations thereof at a relatively low auto-ignition temperatures. | 12-10-2009 |
20100086468 | METHOD FOR PRODUCING HYDROCYANIC ACID (HCN) - The present invention relates to a process for preparing hydrogen cyanide by the Andrussow process by reacting methane-containing gas, ammonia and oxygen-containing gas over a catalyst at elevated temperature, wherein the proportion by volume of oxygen in relation to the total volume of nitrogen and oxygen (O | 04-08-2010 |
20110150743 | HYDROCYANIC ACID CONTAINING BIORESOURCE CARBON - The invention relates to a hydrocyanic acid containing bioresource carbon, and to a method for producing a raw material mainly containing the same by reacting ammonia with methane or methanol optionally in the presence of air and/or oxygen, characterized in that at least one of the reagents selected from ammonia, methane and methanol is obtained from a biomass. The invention also relates to the uses of the raw material for producing acetone cyanohydrin, adiponitrile, methionine or methionine hydroxyl-analog, and sodium cyanide. | 06-23-2011 |
20110171101 | REACTOR FOR PREPARING HYDROGEN CYANIDE BY THE ANDRUSSOW PROCESS - The present invention relates to a reactor ( | 07-14-2011 |
20140147365 | HYDROCYANIC ACID CONTAINING BIORESOURCE CARBON - The invention relates to a hydrocyanic acid containing bioresourced carbon, and to a method for producing a raw material mainly containing the same by reacting ammonia with methane or methanol optionally in the presence of air and/or oxygen, characterized in that at least one of the reagents selected from ammonia, methane and methanol is obtained from a biomass. The invention also relates to the uses of the raw material for producing acetone cyanohydrin, adiponitrile, methionine or methionine hydroxyl-analog, and sodium cyanide. | 05-29-2014 |
20150353371 | PROCESSES FOR PRODUCING HYDROGEN CYANIDE USING STATIC MIXER - A static mixer is disclosed for a hydrogen cyanide reaction process that thoroughly mixes the reactant gases to form a ternary gas mixture that has a coefficient of variation of less than 0.1 across the diameter of the catalyst bed. The static mixer comprises tabs that are inserted through non-continuous slots in the conduit and the tabs are secured to the external wall of the conduit. | 12-10-2015 |
20150360943 | PROCESS FOR PRODUCING HYDROGEN CYANIDE AND RECOVERING HYDROGEN - Described is a process for the production and recovery of hydrogen cyanide, which includes recovering hydrogen from a crude hydrogen cyanide product. The process includes forming a crude hydrogen cyanide product and separating the crude hydrogen cyanide product to form an off-gas stream and a hydrogen cyanide product stream. The off-gas stream is further separated to recover hydrogen. The hydrogen cyanide product stream is further processed to recover hydrogen cyanide. | 12-17-2015 |
20160046496 | HYDROGEN CYANIDE PRODUCTION WITH CONTROLLED FEEDSTOCK COMPOSITION - The present invention relates to a process for producing hydrogen cyanide and more particularly, to a process for economically producing hydrogen cyanide. More particularly, the present invention relates to the controlled use of a ternary gas mixture including a methane-containing gas comprising less than 1 vol. % C2+ hydrocarbons, such as, for example, less than 5,000 mpm C2+ hydrocarbons, an ammonia-containing gas, and an oxygen-containing gas for production of hydrogen cyanide at enhanced levels of productivity and yield. | 02-18-2016 |
20160046497 | REACTOR SCHEME IN ANDRUSSOW PROCESS - A process for the production of hydrogen cyanide comprises feeding a reaction mixture feed to a plurality of primary reactors each comprising a catalyst bed comprising platinum, wherein the reaction mixture feed comprises gaseous ammonia, methane, and oxygen gas, determining whether a percent yield of hydrogen cyanide in any of the plurality of primary reactors is at or below a threshold, identifying one or more suboptimal reactors amongst the plurality of primary reactors when the percent yield of hydrogen cyanide in any of the plurality of primary reactors is at or below the threshold, and supplementally feeding the reaction mixture feed to one or more supplementary reactors when the one or more suboptimal reactors are identified, wherein each of the one or more supplementary reactors comprises a catalyst bed comprising platinum. The supplemental feeding can be performed in place of the feeding of the reaction mixture feed to the one or more suboptimal reactors or in addition to the feeding of the reaction mixture feed to the one or more suboptimal reactors. The overall process is sufficient to maintain an overall measured hydrogen cyanide production rate amongst the one or more supplementary reactors and the primary reactors that is within a desired overall hydrogen cyanide production rate range. | 02-18-2016 |
20160046499 | APPARATUS AND METHOD FOR REDUCING CATALYST POISONING IN AN ANDRUSSOW PROCESS - Processes and systems for the production of hydrogen cyanide via the Andrussow process are described. A reaction zone, wherein oxygen, ammonia, and methane can be allowed to react in the presence of a catalyst comprising platinum to provide hydrogen cyanide. A desulfurization zone, wherein a feed stream comprising sulfur and at least one of the oxygen, the ammonia, and the methane can be contacted with a desulfurization material to produce a sulfur-reduced feed stream that is provided to the reaction zone. In an example, the desulfurization material includes zinc oxide. | 02-18-2016 |
20160145114 | REACTION TUBE AND METHOD FOR PRODUCING HYDROGEN CYANIDE - The reaction tube comprises a cylindrical ceramic tube and a catalyst comprising platinum applied to the inner surface of the tube, wherein the reaction tube has fins on the inner surface which run in the longitudinal direction of the tube, extend into the interior space of the reaction tube and are coated with catalyst. The reaction tube is suitable for preparing hydrogen cyanide by reacting ammonia and at least one aliphatic hydrocarbon having 1 to 4 carbon atoms at a temperature of 1000 to 1400° C. | 05-26-2016 |
20160152484 | REACTOR FOR PREPARING HYDROGEN CYANIDE BY THE ANDRUSSOW PROCESS, EQUIPMENT COMPRISING SAID REACTOR AND PROCESS USING SUCH AN EQUIPMENT | 06-02-2016 |
20160200586 | REDUCTION OF ORGANONITRILE IMPURITY LEVELS IN HCN FROM AN OXYGEN ANDRUSSOW PROCESS | 07-14-2016 |
423379000 | Utilizing hydrogen cyanide as reactant | 2 |
20100296995 | SODIUM CYANIDE PROCESS - A process for the production of sodium cyanide crystals comprising;
| 11-25-2010 |
20140147366 | PROCESS FOR PRODUCING CARBON FIBRES - The invention relates to a process for producing carbon fibres, in which polyacrylonitrile (PAN) is pyrolytically carbonized with liberation of hydrocyanic acid (HCN) to form carbon fibres and also a plant for carrying out the process. | 05-29-2014 |
423384000 | Binary (e.g., cyanogen, etc.) | 13 |
20090004091 | Carbonnitride nanotubes with nano-sized pores on their stems, their preparation method and control method of size and quantity of pore thereof - Disclosed are carbon nitride (C | 01-01-2009 |
20090022648 | Induction fullerene producing device and producing method and induction fullerene - A device and a method capable of producing induction fullerene with high yield are provided. Nitrogen gas being an object to be induced is introduced into a plasma flow producing chamber and a high-temperature flow forming chamber to form a high-temperature plasma flow consisting of nitrogen ions and electrons. A negative voltage is applied to a grid | 01-22-2009 |
20090202418 | PREPARATION OF CARBON NANOPARTICLES AND CARBON NITRIDE FROM HIGH NITROGEN COMPOUND - The high-nitrogen compound 3,6-di(azido)-1,2,4,5-tetrazine (DiAT) was synthesized by a relatively simple method and used as a precursor for the preparation of carbon nanospheres and nanopolygons, and nitrogen-rich carbon nitrides. | 08-13-2009 |
20090202419 | METHOD FOR PREPARING CARBON NITRIDE C3N4 - The present invention relates to a method for preparing carbon nitride C | 08-13-2009 |
20100015030 | CARBON NITRIDE PREPARATION METHOD - The present invention relates to a method for preparing carbon nitride material wherein organic rodanide is simply pyrolysed to give carbon nitride material in an efficient, economical and ecologically friendly manner. The present invention accomplishes preparation of graphitic carbon nitride materials having a carbon to nitrogen molar ratio of about 3:4. The employed starting materials are cheap and can be easily removed and/or washed away. | 01-21-2010 |
20100015031 | Carbonnitride nanotubes with nano-sized pores on their stems, their preparation method and control method of size and quantity of pore thereof - Disclosed are carbon nitride (C | 01-21-2010 |
20100104494 | Enhanced Optical Properties of Chemical Vapor Deposited Single Crystal Diamond by Low-Pressure/High-Temperature Annealing - The method of improving the optical properties of single crystal CVD diamond which comprises annealing the crystals at a temperature of up to 2200° C. and a pressure below 300 torr. | 04-29-2010 |
20100135890 | Method to Produce Light-Emitting Nano-Particles of Diamond - Method to produce diamonds containing Nitrogen-Vacancy centres from diamonds grown by a high pressure and high temperature process and containing isolated substitutional nitrogen, comprising: —Irradiating ( | 06-03-2010 |
20100329961 | DIAMOND MATERIAL - Starting from a diamond material which shows a difference in its absorption characteristics after exposure to radiation with an energy of at least 5.5 eV (typically UV radiation) and thermal treatment at 798K, controlled irradiation is applied so as to introduce defects in the diamond material. After the controlled irradiation the difference in the absorption characteristics after exposure to radiation with an energy of at least 5.5 eV and thermal treatment at 798K is reduced. | 12-30-2010 |
20100329962 | DIAMOND MATERIAL - A method of introducing NV centres in single crystal CVD diamond material is described. One step of the method comprises irradiating diamond material that contains single substitutional nitrogen to introduce isolated vacancies into the diamond material in a concentration of at least 0.05 ppm and at most 1 ppm. Another step of the method comprises annealing the irradiated diamond to form NV centres from at least some of the single substitutional nitrogen defects and the introduced isolated vacancies. | 12-30-2010 |
20110171102 | PROCESS FOR THE PREPARATION OF ETHANEDINITRILE - The invention relates to a process for the preparation of ethanedinitrile, by reading hydrocyanic acid in the liquid phase with nitric acid in the presence of a cupric ion catalyst. | 07-14-2011 |
20110195012 | PROCESS FOR REMOVING HYDROGEN CYANIDE FROM ETHANEDINITRILE - Process for removing hydrogen cyanide from ethanedinitrile by contacting hydrogen cyanide-containing ethanedinitrile with an organic reagent under formation of a covalent bond. | 08-11-2011 |
20140050650 | SUPERHARD CARBON NITRIDE AND METHOD FOR PRODUCING THE SAME | 02-20-2014 |