| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 558318000 | Ammonia utilized | 48 |
| 20110288324 | METHOD FOR MANUFACTURING COMPOUNDS INCLUDING NITRILE FUNCTIONS - A process for the preparation of compounds containing nitrile functions and, more specifically, compounds containing two nitrile functions, such as succinonitrile and adiponitrile, is described. A process for preparing dintrile compounds obtained by reacting ammonia with an aqueous solution of a dicarboxyl compound in the presence of a silicon orthophosphate catalyst is also described. | 11-24-2011 |
| 20190144376 | A PROCESS FOR THE SYNTHESIS OF NITRILES | 05-16-2019 |
| 558319000 | And molecular oxygen or a molecular oxygen containing gas | 42 |
| 20080200715 | PROCESS FOR THE AMMOXIDATION OF PROPANE AND ISOBUTANE - A process for the ammoxidation of a saturated or unsaturated or mixture of saturated and unsaturated hydrocarbon to produce an unsaturated nitrile, said process comprising contacting the saturated or unsaturated or mixture of saturated and unsaturated hydrocarbon with ammonia and an oxygen-containing gas in the presence of a catalyst composition comprising molybdenum, vanadium, antimony, niobium, tellurium, optionally at least one element select from the group consisting of titanium, tin, germanium, zirconium, hafnium, and optionally at least one lanthanide selected from the group consisting of lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, dysprosium, holmium, erbium, thulium, ytterbium and lutetium. Such catalyst compositions are effective for the gas-phase conversion of propane to acrylonitrile and isobutane to methacrylonitrile (via ammoxidation). | 08-21-2008 |
| 20080200716 | Mixed metal oxide catalysts for the ammoxidation of propane and isobutane - A process for the ammoxidation of a saturated or unsaturated or mixture of saturated and unsaturated hydrocarbon to produce an unsaturated nitrile, said process comprising contacting the saturated or unsaturated or mixture of saturated and unsaturated hydrocarbon with ammonia and an oxygen-containing gas in the presence of a catalyst composition comprising molybdenum, vanadium, antimony, niobium, tellurium, optionally at least one element select from the group consisting of titanium, tin, germanium, zirconium, hafnium, and optionally at least one lanthanide selected from the group consisting of lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, dysprosium, holmium, erbium, thulium, ytterbium and lutetium. Such catalysts are characterized by very low levels of tellurium in the composition. Such catalyst compositions are effective for the gas-phase conversion of propane to acrylonitrile and isobutane to methacrylonitrile (via ammoxidation). | 08-21-2008 |
| 20090005586 | MIXED METAL OXIDE CATALYSTS FOR THE AMMOXIDATION OF PROPANE AND ISOBUTANE - A catalyst composition comprising molybdenum, vanadium, and antimony, and at least one other element selected from the group consisting of praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, and lutetium. Such catalyst compositions are effective for the gas-phase conversion of propane to acrylonitrile and isobutane to methacrylonitrile (via ammoxidation). | 01-01-2009 |
| 20090030224 | Process for producing metal oxide catalyst - A process fro producing fro producing a high-performance catalyst for use in a reaction for acrylic acid production from propane or propylene through air oxidation, is provided. A process for producing a metal oxide catalyst having the following composition formula, the process comprising the following steps (1) and (2): | 01-29-2009 |
| 20090030225 | Oxidation process in fluidised bed reactor - A process for reacting in a fluid bed reactor at least one oxidisable reactant with molecular oxygen in the presence of a catalytically active fluidised bed of solid particles. In the process a molecular oxygen-containing gas having an oxygen concentration greater than that of air is introduced into the fluidised bed whilst the fluidised bed is maintained in a turbulent regime. The process is suitable for oxidation, ammoxidation and carboxylation processes, including the production of maleic anhydride, acrylonitrile, ethylene, acetic acid and vinyl acetate. | 01-29-2009 |
| 20090054678 | Method for producing unsaturated carboxylic acids and nitriles - The present invention relates to an improved alkane (amm)oxidation process in which sulfur-bearing impurities present in the alkane feedstock are removed upstream from the (amm)oxidation reaction. | 02-26-2009 |
| 20090198081 | PROCESS FOR THE AMMOXIDATION OF PROPANE AND ISOBUTANE - A process for the ammoxidation of a saturated or unsaturated hydrocarbon to form an unsaturated nitrile, the process including the steps of contacting the hydrocarbon with ammonia, an oxygen-containing gas, and steam, in the presence of a mixed oxide catalyst. | 08-06-2009 |
| 20100048936 | PROCESS FOR THE PREPARATION OF NITROGEN-CONTAINING COMPOUNDS - Process for the preparation of a nitrogen-containing compound, comprising the steps of: a) bringing N | 02-25-2010 |
| 20110218352 | METHOD OF MAKING MIXED METAL OXIDE CATALYSTS FOR AMMOXIDATION AND/OR OXIDATION OF LOWER ALKANE HYDROCARBONS - The present invention comprises a method for preparing a mixed oxide catalyst for use in producing acrylonitrile or methacrylonitrile from propane or isobutane by ammoxidation in a gaseous phase via methods of contacting any one of the antimony compound, the molybdenum compound, and the vanadium compound with hydrogen peroxide prior to combining with source compounds for the remaining elements in the catalyst. | 09-08-2011 |
| 20110288325 | METHOD FOR PRODUCING SILICA-SUPPORTED CATALYST, AND METHOD FOR PRODUCING UNSATURATED CARBOXYLIC ACID OR UNSATURATED NITRILE - Disclosed is a silica-supported catalyst having excellent wear resistance, by which an object product can be obtained with excellent yield. Specifically disclosed is a method for producing a silica-supported catalyst which contains Mo, V, Nb and component X (that is Sb and/or Te), and is used in a vapor-phase catalytic oxidation reaction or vapor-phase catalytic ammoxidation reaction of propane. The method for producing a silica-supported catalyst comprises: (I) a step wherein Mo, V, Nb, component X, a silica sol and water are mixed, thereby preparing a starting material blended solution; (II) a step wherein the starting material blended solution is dried, thereby obtaining a dried powder; and (III) a step wherein the dried powder is tired, thereby obtaining a silica-supported catalyst. In the method for producing a silica-supported catalyst, the silica sol contains 10-270 ppm by weight of nitrate ions relative to SiO | 11-24-2011 |
| 20130041172 | APPARATUS FOR REMOVING CATALYST SURFACE SUBSTANCES - An apparatus for efficiently removing the exuded substance and/or the attached substance on the surface of a catalyst (catalyst surface substance) from the catalyst is provided. The apparatus comprising a main body, the apparatus for removing a catalyst surface substance present on a surface of a catalyst from the catalyst by bringing a gas flow into contact with the catalyst housed in the main body, wherein a gas flow length in a flow direction of the gas flow is 55 mm or more, and an average flow velocity of the gas flow is 80 m/s or more and 500 m/s or less in terms of a linear velocity at 15° C. and 1 atm. | 02-14-2013 |
| 20130053596 | MIXED CATALYST - It is an object of the present invention to provide a mixed catalyst for a vapor-phase catalytic oxidation or a vapor-phase catalytic ammoxidation reaction of propane or isobutane, capable of providing a corresponding unsaturated acid or unsaturated nitrile at high yield from propane or isobutane. A mixed catalyst for a vapor-phase catalytic oxidation reaction or a vapor-phase catalytic ammoxidation reaction of propane or isobutane comprises: | 02-28-2013 |
| 20130253216 | APPARATUS AND METHOD FOR PRODUCING CATALYST, AND METHOD FOR PRODUCING UNSATURATED ACID OR UNSATURATED NITRILE - An apparatus for producing a catalyst comprising a tank configured to prepare an aqueous mixed solution containing a Mo compound, a V compound and a Nb compound, a dryer configured to spray-dry the aqueous mixed solution, and a pipe for connecting the tank with the dryer so that the aqueous mixed solution can be supplied from the tank to the dryer, wherein a heater configured to heat the aqueous mixed solution is provided in the tank and/or the pipe, and a filter configured to filtrate the aqueous mixed solution is provided in the pipe. | 09-26-2013 |
| 20130253217 | COMPOSITE OXIDE CATALYST AND METHOD FOR PRODUCING THE SAME - A method for producing a complex oxide catalyst containing a complex oxide represented by the formula: | 09-26-2013 |
| 20130274500 | METHOD FOR PRODUCING UNSATURATED NITRILE - A method for producing an unsaturated nitrile by subjecting propane to a vapor-phase catalytic ammoxidation reaction using a fluidized bed reactor in the presence of a composite oxide catalyst containing Mo, V, and Nb, the method comprising the step of:
| 10-17-2013 |
| 20130289298 | METHOD FOR PRODUCING UNSATURATED NITRILE - A method for producing an unsaturated nitrile by a propane ammoxidation reaction, the method including:
| 10-31-2013 |
| 20130310593 | APPARATUS FOR PRODUCING MIXED SOLUTION AND METHOD FOR PREPARING MIXED SOLUTION - An apparatus for producing a mixed solution, comprising a mixing vessel for preparing an aqueous mixed solution containing a dicarboxylic acid and a Nb compound and a filter for the aqueous mixed solution connected to the mixing vessel via a pipe, the mixing vessel being anticorrosive and equipped with a stirring unit, a heating unit and a cooling unit for the aqueous mixed solution, wherein the aqueous mixed solution prepared in the mixing vessel is fed to the filter via the pipe and filtered in the filter under increased pressure. | 11-21-2013 |
| 20140024851 | CALCINATION APPARATUS, PROCESS FOR PRODUCING OXIDE CATALYST, AND PROCESS FOR PRODUCING UNSATURATED ACID OR UNSATURATED NITRILE - Disclosed is a calcination apparatus, including: a calcination tube having open ends at both terminals; a pair of hoods, each hood covering each open end of the calcination tube; and a pair of rings, each ring sealing a gap between the calcination tube and the hood, wherein the rings are directly or indirectly fixed on an outer surface of the calcination tube; a groove is provided along a circumferential direction of the ring at a contact surface side between the ring and the hood; a sealed chamber surrounded by the hood and the groove is formed; and both the calcination tube and the rings rotate in a circumferential direction of the calcination tube while keeping the hood in contact with both sides of the groove. | 01-23-2014 |
| 20160023994 | CALCINATION APPARATUS, PROCESS FOR PRODUCING OXIDE CATALYST, AND PROCESS FOR PRODUCING UNSATURATED ACID OR UNSATURATED NITRILE - Disclosed is a calcination apparatus, including: a calcination tube having open ends at both terminals; a pair of hoods, each hood covering each open end of the calcination tube; and a pair of rings, each ring sealing a gap between the calcination tube and the hood, wherein the rings are directly or indirectly fixed on an outer surface of the calcination tube; a groove is provided along a circumferential direction of the ring at a contact surface side between the ring and the hood; a sealed chamber surrounded by the hood and the groove is formed; and both the calcination tube and the rings rotate in a circumferential direction of the calcination tube while keeping the hood in contact with both sides of the groove. | 01-28-2016 |
| 558320000 | Acting on a compound containing acyclic or alicyclic carbon to carbon unsaturation | 22 |
| 20090299087 | Process for manufacturing unsaturated mononitriles to improve on-stream time and reduce fouling - The process for manufacturing unsaturated mononitriles, such as acrylonitrile and methacrylonitrile, has been modified to add a partially condensed quench effluent stripper column to remove high boiling organic compounds from the reactor effluent prior to introduction into the extractive distillation recovery column. The high boiling organic compounds are preferably removed after the ammonia in the reactor effluent has been neutralized and the neutralization products have been removed. The targeted high boiling organic compounds are associated with fouling in the recovery section of the plant. | 12-03-2009 |
| 558321000 | Niobium, tantalum, silver, sulfur, ruthenium, rhodium, palladium, osmium, iridium, or platinum containing material utilized | 7 |
| 20080249328 | Mixed metal oxide catalysts and catalytic conversions of lower alkane hydrocarbons - Catalytic compositions and processes are disclosed for economical conversions of lower alkane hydrocarbons. Broadly, the present invention discloses solid compositions containing mixed metal oxides that exhibit catalytic activity for ammoxidation of lower alkane hydrocarbons to produce an unsaturated nitrile in high yield. Generally, these solid oxide compositions comprise, as component elements, molybdenum (Mo), vanadium (V) niobium (Nb) and at least one active element selected from the group consisting of the elements having the ability to form positive ions. Mixed metal oxide catalytic compositions advantageously comprise one or more crystalline phases at least one of which phases has predetermined unit cell volume and aspect ratio. Also described are methods for forming the improved catalysts having the desired crystalline structure and ammoxidation processes for conversion of lower alkanes. | 10-09-2008 |
| 20090221843 | CATALYST FOR PRODUCING ACRYLONITRILE AND PROCESS FOR PRODUCING ACRYLONITRILE - A catalyst for producing acrylonitrile capable of maintaining a high yield of acrylonitrile for a long time is provided. The catalyst has a composition represented by Mo | 09-03-2009 |
| 20110237820 | Process for preparing improved mixed metal oxide ammoxidation catalysts - A process for the preparation of a catalyst comprising bismuth, molybdenum, iron, cerium and other promoter elements, wherein the elements in said catalyst are combined together in an aqueous catalyst precursor slurry, the aqueous precursor slurry so obtained is dried to form a catalyst precursor, and the catalyst precursor is calcined to form said catalyst, the process comprising:
| 09-29-2011 |
| 20110237821 | Attrition resistant mixed metal oxide ammoxidation catalysts - A catalytic composition useful for the conversion of an olefin selected from the group consisting of propylene, isobutylene or mixtures thereof, to acrylonitrile, methacrylonitrile, and mixtures thereof. The catalytic composition comprising a complex of metal oxides comprising bismuth, molybdenum, iron, cerium and other promoters, wherein the ratio of cerium to iron in the composition is greater than or equal to 0.8 and less than or equal to 5. | 09-29-2011 |
| 20120130112 | Mixed Metal Oxide Ammoxidation Catalysts - Olefins selected from the group consisting of propylene, isobutylene or mixtures thereof, are converted to acrylonitrile, methacrylonitrile, and mixtures thereof in a process comprising reacting in the vapor phase at an elevated temperature and pressure said olefin with a molecular oxygen containing gas and ammonia in the presence of a catalytic composition comprising a complex of metal oxides comprising bismuth, molybdenum, iron, cerium and other promoter elements, wherein the X-ray diffraction pattern of the catalytic composition has X-ray diffraction peaks at 2θ angle 28±0.3 degrees and 2θ angle 26.5±0.3 degrees, and wherein the ratio of the intensity of the most intense x-ray diffraction peak within 2θ angle 28±0.3 degrees to the intensity of most intense x-ray diffraction peak within 2θ angle 26.5±0.3 degrees is defined as X/Y, and wherein X/Y is greater than or equal to 0.7. | 05-24-2012 |
| 20130072710 | Mixed metal oxide catalysts - Catalytic compositions are provided that are effective for providing increased acrylonitrile product without a significant decrease in hydrogen cyanide and/or acetonitrile production and provide an overall increase in production of acrylonitrile, hydrogen cyanide and acetonitrile. The catalytic compositions include a complex of metal oxides and include at least about 15% m-phase plus t-phase by weight and have a weight ratio of m-phase to m-phase plus t-phase of 0.45 or greater. | 03-21-2013 |
| 20150031907 | METHOD FOR PRODUCING ACRYLONITRILE - The invention relates to a method for producing acrylonitrile which includes a vapor phase catalytic ammoxidation process of performing vapor phase catalytic ammoxidation by bringing a source gas containing propylene, molecular oxygen, and ammonia into contact with a fluidized bed catalyst to obtain acrylonitrile. The method is characterized in that the fluidized bed catalyst consists of particles containing Fe, Sb, and Te, and the vapor phase catalytic ammoxidation process is performed while maintaining a B/A in the range of 2.0 to 5.0, where A denotes an atomic ratio of Te/Sb in a bulk composition of the fluidized bed catalyst and B denotes an atomic ratio of Te/Sb in a surface composition of the particles of the fluidized bed catalyst. According to the method for producing acrylonitrile of the invention, it is possible to stably maintain a high acrylonitrile yield over a long period of time. | 01-29-2015 |
| 558322000 | Tellurium containing material utilized | 2 |
| 20150057463 | METHOD FOR PRODUCING ACRYLONITRILE - The invention relates to a method for producing acrylonitrile which includes a vapor phase catalytic ammoxidation process of performing vapor phase catalytic ammoxidation by bringing a source gas containing propylene, molecular oxygen, and ammonia into contact with a fluidized bed catalyst to obtain acrylonitrile. The method is characterized in that the fluidized bed catalyst is a catalyst containing iron, antimony, and tellurium, and the vapor phase catalytic ammoxidation process is performed while maintaining an adsorbed amount of ammonia per specific surface area (m | 02-26-2015 |
| 20160008794 | CATALYST FOR ACRYLONITRILE PRODUCTION AND METHOD FOR PRODUCING ACRYLONITRILE | 01-14-2016 |
| 558323000 | Molybdenum containing material utilized | 12 |
| 20140243545 | Methods for providing bond activation catalysts and related catalysts, systems, and methods - Described herein are catalysts for activation of an R—H bond in a R—H substrate and related catalytic matrices, compositions, methods and systems. | 08-28-2014 |
| 20150343426 | SELECTIVE AMMOXIDATION CATALYSTS - A catalytic composition useful for the conversion of an olefin selected from the group consisting of propylene, isobutylene or mixtures thereof, to acrylonitrile, methacrylonitrile, and mixtures thereof. The catalytic composition comprises a complex of metal oxides comprising bismuth, molybdenum, iron, cerium and other promoters, wherein the ratio of bismuth to cerium ratio in the composition is greater than or equal to 0.45 and less than or equal to 1.5. | 12-03-2015 |
| 558324000 | Bismuth containing material utilized | 10 |
| 20100069659 | PROCESS FOR PRODUCING GEOMETRIC SHAPED CATALYST BODIES - A process for producing geometric shaped catalyst bodies K whose active material is a multielement oxide of stoichiometry | 03-18-2010 |
| 20120296108 | PROCESS FOR PRODUCING GEOMETRIC SHAPED CATALYST BODIES - A process for producing geometric shaped catalyst bodies K whose active material is a multielement oxide of stoichiometry | 11-22-2012 |
| 20130204030 | METHOD FOR PRODUCING CATALYST - Disclosed is a method for producing a catalyst, in which physical properties of a dried material or a calcined material in a production process of the catalyst are stable and a change in at least one of a catalyst activity and a selectivity to a target product is small and hence reproducibility of the catalyst is excellent. The present invention is a method for producing a catalyst containing molybdenum, bismuth, and iron, which contains the steps of washing a surface of at least one device equipped in an apparatus for the production of catalyst, to which a solid matter adheres, with a basic solution, and producing the catalyst with the apparatus for the production of catalyst thus washed. | 08-08-2013 |
| 20140039213 | PROCESS FOR PRODUCING GEOMETRIC SHAPED CATALYST BODIES - A process for producing geometric shaped catalyst bodies K whose active material is a multielement oxide of stoichiometry | 02-06-2014 |
| 20140148610 | PRE CALCINATION ADDITIVES FOR MIXED METAL OXIDE AMMOXIDATION CATALYSTS - A process for preparation of catalysts for the production of acrylonitrile, acetonitrile and hydrogen cyanide comprising contacting at an elevated temperature, propylene, ammonia and oxygen in the vapor phase in the presence of a catalyst, said catalyst comprising a complex of metal oxides wherein a heat-decomposable nitrogen containing compound is added during the process for the preparation of the catalyst. | 05-29-2014 |
| 20140296558 | PROCESS FOR PRODUCING GEOMETRIC SHAPED CATALYST BODIES - A process for producing geometric shaped catalyst bodies K whose active material is a multielement oxide of stoichiometry | 10-02-2014 |
| 20150065744 | METHOD FOR PRODUCING ACRYLONITRILE - The invention relates to a method for producing acrylonitrile which includes a vapor phase catalytic ammoxidation process of performing vapor phase catalytic ammoxidation by bringing a source gas containing propylene, molecular oxygen, and ammonia into contact with a fluidized bed catalyst to obtain acrylonitrile. The method is characterized in that the fluidized bed catalyst is a catalyst containing molybdenum and bismuth and the vapor phase catalytic ammoxidation process is performed while maintaining an adsorbed amount of ammonia per specific surface area (m | 03-05-2015 |
| 20160051967 | METHOD FOR PRODUCING A CATALYST FOR THE PARTIAL OXIDATION/AMMOXIDATION OF OLEFINS - The present invention relates to a method for producing a supported catalyst, a catalyst which is obtainable using the method, and use thereof for the partial oxidation or ammoxidation of olefins, in particular for the oxidation of propene to acrolein, of isobutene to methacrolein, and/or the ammoxidation of propene to acrylonitrile. The method according to the invention includes the following steps: a) providing a solution in which precursor compounds of the catalytically active component are essentially completely dissolved in a suitable solvent; b) bringing the solution obtained in step a) into contact with a (chemically) inert, porous support having a specific surface of 1 to 500 m | 02-25-2016 |
| 20160059221 | SELECTIVE AMMOXIDATION CATALYSTS - A catalytic composition useful for the conversion of an olefin selected from the group consisting of propylene, isobutylene or mixtures thereof, to acrylonitrile, methacrylonitrile, and mixtures thereof. The catalytic composition comprises a complex of metal oxides comprising bismuth, molybdenum, iron, cerium and other promoters, wherein the ratio of bismuth to cerium ratio in the composition is greater than or equal to 0.45 and less than or equal to 1.5. | 03-03-2016 |
| 20160175817 | MIXED METAL OXIDE AMMOXIDATION CATALYSTS | 06-23-2016 |
| 558327000 | Acting on a benzene ring-containing compound | 1 |
| 20120149933 | AMMOXIDATION CATALYST AND METHOD FOR PRODUCING NITRILE COMPOUND USING THE SAME - The present invention provides an ammoxidation catalyst containing vanadium oxide, titanium oxide and diamond. | 06-14-2012 |
| 558329000 | Product contains cyano bonded directly to a benzene ring | 1 |
| 20090118531 | NOVEL SUPPORTED CATALYST FOR AMMOXIDATION - Supported catalysts comprising a support having a mean diameter of ≦78 μm, a vanadium oxide, an antimony oxide, one or more alkali metal or alkaline earth metal oxides, and one or more oxides of tungsten, molybdenum, titanium, iron, cobalt, nickel, manganese, potassium, copper or mixtures thereof; processes for preparing said catalysts; and processes for preparing an aromatic or heteroaromatic nitrile in the presence of such a supported catalyst. | 05-07-2009 |
| 558330000 | Reactant contains acyclic or alicyclic carbon to carbon double bond | 3 |
| 20100286432 | PROCESS FOR PRODUCING OXIDE CATALYSTS - An object of the present invention is to provide a process for producing an oxide catalyst used in a vapor-phase catalytic oxidation or vapor-phase catalytic ammoxidation reaction of propane or isobutene, which enables a catalyst demonstrating favorable yield to be stably produced. According to the present invention, there is provided a process for producing an oxide catalyst used in a vapor-phase catalytic oxidation or vapor-phase catalytic ammoxidation reaction of propane or isobutane, comprising the steps of: (i) preparing a catalyst raw material mixture containing Mo, V and Nb and satisfying the relationships of 0.1≦a≦1 and 0.01≦b≦1 when atomic ratios of V and Nb to one atom of Mo are defined as a and b, respectively; (ii) drying the catalyst raw material mixture; and (iii) calcining a particle, in which a content of the particle having a particle diameter of 25 μm or less is 20% by mass or less and a mean particle diameter is from 35 to 70 μm, in an inert gas atmosphere. | 11-11-2010 |
| 20100324326 | Mixed Metal Oxide Catalysts and Processes For Their Preparation and Use - A catalyst for the oxidation of an alkane, alkene or mixtures thereof. The catalyst includes a mixed-metal oxide having the formula Mo | 12-23-2010 |
| 20140194642 | SILICA-SUPPORTED CATALYST - A silica-supported catalyst used when producing a corresponding unsaturated nitrile in a vapor-phase catalytic ammoxidation reaction of propane or isobutane, the catalyst including a metal oxide represented by the following formula (1), | 07-10-2014 |
