| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 558332000 | Processes of attaching cyano to carbon by reaction of an inorganic cyanide with an organic compound (e.g., using HCN, cyanogen, metal cyanide, ammonium cyanide, cyanogen chloride, etc.) | 41 |
| 20080221351 | Method for the Production of Adipodinitrile by Hydrocyanation of 1,3-Butadiene - A process is described for preparing adiponitrile by hydrocyanating 1,3-butadiene over a catalyst, by, in a first process step, hydrocyanating 1,3-butadiene to 3-pentenenitrile over at least one nickel(0) catalyst, and, in a second process step, hydrocyanating 3-pentenenitrile to adiponitrile over at least one nickel(0) catalyst with addition of at least one Lewis acid, wherein at least one of the at least one nickel(0) catalysts used in the particular process steps is transferred into the other process step. | 09-11-2008 |
| 558335000 | The organic compound contains an acyclic or alicyclic carbon to carbon double bond | 31 |
| 20080242885 | Method for Hydrocyanation - A process is described for removing hydrogen cyanide from mixtures comprising pentenenitrile, wherein the removal is effected by an azeotropic distillation of hydrogen cyanide with 1,3-butadiene. | 10-02-2008 |
| 20090187039 | Production of 3-pentenenitrile from 1,3-butadiene - A process is described for preparing 3-pentenenitrile by hydrocyanating 1,3-butadiene, wherein 1,3-butadiene is reacted with hydrogen cyanide in the presence of at least one catalyst and the stream resulting therefrom is purified distillatively, the bottom temperature during the distillation not exceeding 140° C. | 07-23-2009 |
| 20090247779 | METHOD FOR PRODUCING 3-PENTENENITRILE BY MEANS OF THE HYDROCYANATION OF 1,3-BUTADIENE - A method for producing 3-pentenenitrile by means of the hydrocyanation of 1,3-butadiene, which comprises the following process steps:
| 10-01-2009 |
| 20110082310 | PRODUCTION OF NITRILE COMPOUNDS - Organic compounds containing at least one site of ethylenic unsaturation are catalytically hydrocyanated and the medium of hydrocyanation is separated into desired linear organic compounds containing at least one nitrile function, e.g., 3-pentenenitrile, and undesired nitrile by-products, e.g., methylglutaronitrile, and the undesired nitrile by-products are hydrodenitrogenated into ammonia and at least one hydrocarbon compound under an absolute hydrogen pressure ranging from 0.1 to 10 MPa at a temperature ranging from 200° to 500° C. and in the presence of a hydrodenitrogenation catalyst. | 04-07-2011 |
| 20110118499 | PREPARATION OF NITRILES FROM ETHYLENICALLY UNSATURATED COMPOUNDS - A process for the hydrocyanation of a hydrocarbon-based compound having at least one site of ethylenic unsaturation into a nitrile compound includes reaction thereof, in a liquid medium, with hydrogen cyanide in the presence of a catalyst containing a metal element selected from among the transition metals and an organophosphorus ligand, wherein the organophosphorus ligand is a compound of formula (I): | 05-19-2011 |
| 20110288326 | PROCESS FOR ISOMERIZING CIS-2-PENTENENITRILE TO 3-PENTENENITRILES - A process for isomerizing cis-2-pentenenitrile to 3-pentenenitriles, by isomerizing cis-2-pentenenitrile with amidines, tertiary amines or mixtures thereof as a catalyst at temperatures of 80 to 200° C. and a pressure of 0.01 to 50 bar. | 11-24-2011 |
| 20130023690 | PROCESS FOR THE PRODUCTION OF NITRILE COMPOUNDS FROM ETHYLENICALLY UNSATURATED COMPOUNDS - A method is described for the hydrocyanation of organic ethylene-unsaturated compounds into compounds including at least one nitrile function. Also described, is a method for the hydrocyanation of a hydrocarbon compound including at least one ethylenic unsaturation by reaction in a liquid medium with hydrogen cyanide in the presence of a catalyst including a metal element selected from among the transition metals and an organophosphorous ligand including, in one embodiment of the invention, an organophosphorous compound. The described method can be used in particular for the synthesis of adiponitrile from butadiene. | 01-24-2013 |
| 558337000 | The organic compound contains halogen bonded directly to carbon | 1 |
| 20130303797 | METHOD FOR SYNTHESIZING 2-CYANO-3,12-DIOXOOLEAN-1, 9(11)-DIEN-28-OIC ACID METHYL ESTER AND DERIVATIVES THEREOF - The present invention is a method for preparing triterpenoids such as 2-cyano-3,12-dioxoolean-1,9-dien-28-methyl ester and derivatives thereof from oleanic acid, ursolic acid, betulinic acid, sumaresinolic acid or hederagenin. | 11-14-2013 |
| 558338000 | Organic material which contains phosphorus, arsenic, or antimony, in addition to nickel, utilized (e.g., zero-valent nickel complexes, etc.) | 20 |
| 20080242886 | Continuous Method for the Production of Linear Pentene Nitriles - A process is described for continuously hydrocyanating 1,3-butadiene in the presence of at least one nickel(0) catalyst with chelate ligands, wherein 1,3-butadiene and hydrogen cyanide are used in a molar ratio of from 1.6:1 to 1.1:1. | 10-02-2008 |
| 20080275266 | Method for the Production of Pentene Nitriles From N-Butane - A process is described for hydrocyanating 1,3-butadiene over at least one nickel(0) complex having phosphorus ligands as a catalyst, wherein the 1,3-butadiene is used in a mixture with n-butane and the mixture contains from 60 to 90% by volume of 1,3-butadiene and from 40 to 10% by volume of n-butane. | 11-06-2008 |
| 20090099386 | Method for the production of dinitrile compounds - The present invention relates to a process for the manufacture of dinitrile compounds by double hydrocyanation of an olefin. | 04-16-2009 |
| 20090182163 | PROCESS FOR MAKING AND REFINING 3-PENTENENITRILE, AND FOR REFINING 2-METHYL-3-BUTENENITRILE - The invention provides an integrated, continuous process for the production of 3-pentenenitrile, the refining of 3-pentenenitrile, and the refining of 2-methyl-3-butenenitrile, the process comprising:
| 07-16-2009 |
| 20090182164 | HYDROCYANATION OF PENTENENITRILES - The invention provides a hydrocyanation process to produce adiponitrile and other dinitriles having six carbon atoms, in the presence of catalyst composition comprising a zero-valent nickel and at least one bidentate phosphorus-containing ligand wherein the bidentate phosphorus-containing ligand gives acceptable results according to at least one protocol of the 2-Pentenenitrile Hydrocyanation Test Method. | 07-16-2009 |
| 20090198082 | PROCESS FOR PRODUCING DICYANONORBORNANE AND ZEROVALENT NICKEL COMPLEX CATALYST - The present invention is to provide a process for producing dicyanonorbornane characterized by causing hydrogen cyanide to undergo addition reaction with cyanonorbornene (bicyclo[2.2.1]-5-heptene-2-carbonitrile) in the presence of a zerovalent nickel complex catalyst which is produced by using a phosphite represented by P(x)(y)(z) (wherein P is a phosphorus atom, and x, y and z are each OR, where R represents an aryl group having not more than 18 carbon atoms) as a ligand to reduce a nickel halide with at least one metal selected among zinc, cadmium, beryllium, aluminum, iron and cobalt, wherein the phosphite is one which has a phosphate content of 1.0 weight % or lower based on the whole phosphite. | 08-06-2009 |
| 20090247780 | METHOD OF PRODUCING NITRILE COMPOUNDS - The present invention relates to the manufacture of nitrile compounds from unsaturated organic compounds by reaction with hydrogen cyanide. It relates more particularly to the manufacture of nitrile compounds of use in the synthesis of adiponitrile, an important chemical intermediate in the manufacture of major chemical compounds, such as hexamethylenediamine and ε-caprolactam. The invention provides a process for the manufacture of organic compounds comprising at least one nitrile functional group by carrying out a hydrocyanation reaction between hydrogen cyanide and an organic compound comprising at least one ethylenic unsaturation. This reaction is carried out in the presence of a catalytic system comprising a metal element chosen from the group consisting of nickel, platinum and palladium and an organophosphorus ligand, the reaction medium additionally comprising an ionic liquid in the liquid state at least at the temperature at which the hydrocyanation reaction is carried out. | 10-01-2009 |
| 20110166376 | PREPARATION OF NITRILES FROM ETHYLENICALLY UNSATURATED COMPOUNDS - A process for the hydrocyanation of a hydrocarbon-based compound having at least one site of ethylenic unsaturation into a nitrile compound includes reaction thereof, in a liquid medium, with hydrogen cyanide in the presence of a catalyst containing a metal element selected from among the transition metals and an organophosphorus ligand, wherein the organophosphorus ligand is a mixture of at least one monodentate organophosphite compound and at least one monodentate organophosphine compound; the subject process is especially useful for the synthesis of adiponitrile from butadiene. | 07-07-2011 |
| 20110196168 | NICKEL METAL COMPOSITIONS AND NICKEL COMPLEXES DERIVED FROM BASIC NICKEL CARBONATES - Nickel-metal-containing solids for use in manufacturing nickel metal complexes are disclosed. The nickel-metal-containing solids are made by reducing basic nickel carbonates. By varying the molar ratios of carbonates and bicarbonates to nickel salts, the methods provide basic nickel carbonates that produce superior nickel metal-containing solids that react more effectively with phosphorous-containing ligands. The phosphorous containing ligands can be both monodentate and bidentate phosphorous-containing ligands. | 08-11-2011 |
| 20110288327 | PROCESS FOR THE MANUFACTURE OF COMPOUNDS COMPRISING NITRILE FUNCTIONAL GROUPS - A method for producing compounds including at least one nitrile function by the hydrocyanation of a compound including at least one non-conjugated unsaturation is described. A method for producing compounds including at least one nitrile function by the hydrocyanation of an organic compound including at least one non-conjugated unsaturation including 2 to 20 carbon atoms by reacting with hydrogen cyanide in the presence of a catalytic system including at least one nickel complex in a zero oxidation state with at least one organophosphorus ligand selected from the group including organophosphites, organophosphonites, organophosphinites and organosphosphines and a co-catalyst such as a Lewis acid consisting of a mixture of Lewis acids is also described. | 11-24-2011 |
| 20120035387 | HYDROCYANATION OF 2-PENTENENITRILE - The invention provides a process for hydrocyanation, comprising: contacting 2-pentenenitrile with hydrogen cyanide at a temperature in the range of about 0° C. to about 150° C. in the presence of at least one Lewis acid promoter and a catalyst precursor composition, wherein the catalyst precursor composition comprises a zero-valent nickel and at least one bidentate phosphite ligand selected from a member of the group represented by Formula I and Formula II, in which all like reference characters have the same meaning, except as further explicitly limited: | 02-09-2012 |
| 20130144082 | NICKEL FORM FOR PREPARATION OF CATALYTIC NICKEL-LIGAND COMPLEXES - A novel nickel particulate form is provided that efficiently forms a zero-valent nickel complex with a phosphorus-containing ligands in an organic liquid to form a hydrocyanation catalyst. Particles in the nickel particulate form comprise nickel crystallites. For example, the nickel particulate form can have a BET Specific Surface Area of at least about 1 m | 06-06-2013 |
| 20130150610 | PROCESS FOR MAKING NITRILES - A hydrocyanation reaction is used to react 1,3-butadiene with hydrogen cyanide in the presence of a catalyst to produce pentenenitriles, as well as reaction byproducts, such as methylglutaronitrile (MGN). The effluent from the hydrocyanation reaction is distilled in a particular manner to produce a pentenenitrile-enriched stream, a catalyst-enriched stream and a stream enriched in methylglutaronitrile (MGN). At least a portion of the catalyst enriched stream may be recycled to the hydrocyanation reaction. 3-pentenenitrile may be recovered and, optionally, further reacted with HCN to make adiponitrile (ADN). | 06-13-2013 |
| 20130211125 | PROCESS FOR MAKING NITRILES - Adiponitrile is made by reacting 3-pentenenitrile with hydrogen cyanide. The 3-pentenenitrile is made by reacting 1,3-butadiene with hydrogen cyanide. The 1,3-butadiene feed includes a small amount of tertiary-butylcatechol. The catalyst for the reaction of 1,3-butadiene with hydrogen cyanide to make 3-pentenenitrile is recycled. At least a portion of the recycled catalyst is purified by an extraction process. | 08-15-2013 |
| 20130211126 | PROCESS FOR MAKING NITRILES - Adiponitrile is made by reacting 3-pentenenitrile with hydrogen cyanide. The 3-pentenenitrile is made by reacting 1,3-butadiene with hydrogen cyanide and by isomerizing 2-methyl-3-butenenitrile. The reaction of 1,3-butadiene with hydrogen cyanide to produce 3-pentenenitrile also produces small amounts of dinitrile compounds, including adiponitrile (ADN) and methylglutaronitrile (MGN). Methylglutaronitrile is removed to provide an adiponitrile-enriched stream, which is used in a catalyst purification step. | 08-15-2013 |
| 20130211127 | PROCESS FOR MAKING NITRILES - An improved multi-reaction zone process provides improved nitrile product quality and yield. In a first reaction zone, 1,3-butadiene is reacted with hydrogen cyanide in the presence of a catalyst to produce pentenenitriles comprising 3-pentenenitrile and 2-methyl-3-butenenitrile. In a second reaction zone, 2-methyl-3-butenenitrile, recovered from the first reaction zone, is isomerized to 3-pentenenitrile. In a third reaction zone, 3-pentenenitrile recovered from the first and second reaction zones is reacted with hydrogen cyanide in the presence of a catalyst and a Lewis acid to produce adiponitrile. Unwanted production and build-up of dinitriles, including methylglutaronitrile, in the first reaction zone for the hydrocyanation of 1,3-butadiene is prevented by limiting the flow of Lewis acid into the first reaction zone. | 08-15-2013 |
| 20130267728 | PROCESS FOR MAKING NITRILES - Adiponitrile is made by reacting 3-pentenenitrile with hydrogen cyanide. The 3-pentenenitrile is made by reacting 1,3-butadiene with hydrogen cyanide and by isomerizing 2-methyl-3-butenenitrile. Both reactions take place in the presence of a catalyst comprising zero valent nickel and a phosphorus-containing ligand. The ligand is partially degraded by hydrolysis or oxidation. Phosphorus-containing ligand degradation products are removed during the production of 3-pentenenitrile and adiponitrile. | 10-10-2013 |
| 20130289299 | Process for Isomerization of CIS-2-Pentenenitrile to 3-Pentenenitriles - The present invention relates to an improved process for batchwise or continuous isomerization of cis-2-pentenenitrile to 3-pentenenitriles in the presence of 1,4-diazabicyclo[2.2.2]octane as catalyst. | 10-31-2013 |
| 20140235887 | PROCESS FOR MAKING NITRILES - The present invention relates to a process for hydrocyanating 3-pentenenitrile. The process can include feeding 3-pentenenitrile and HCN to a hydrocyanation reaction zone that includes a Lewis acid promoter, nickel, and a phosphorus-containing ligand. In various embodiments, the process can also include controlling water concentration within the hydrocyanation reaction zone sufficient to maintain a high activity of the ligand catalyst complex while recycling at least a portion of the ligand catalyst complex. | 08-21-2014 |
| 20160168081 | SEPARATING A SOLVENT FROM A NICKEL CATALYST BY DISTILLATION | 06-16-2016 |
| 558339000 | Cobalt, copper, silver, or gold containing material utilized | 1 |
| 20110137064 | METHACRYLATE-BOUND PHOTOISOMERIZABLE CHROMOPHORE, METHODS FOR ITS SYNTHESIS - The invention discloses novel dicyanostilbene derivatives bound to a methacrylic moiety that can serve as an active chromophore in a 3-dimensional optical memory, processes for its synthesis and its intermediates. | 06-09-2011 |
| 558340000 | Ruthenium, rhodium, palladium, osmium, iridium, or platinum containing material utilized | 1 |
| 20090259065 | METHODS OF MAKING ORGANIC COMPOUNDS BY METATHESIS AND HYDROCYANATION - The invention is directed to methods of making organic compounds by metathesis and hydrocyanation. The method of the invention may be used, for example, to make industrial important organic compounds such as diacids, diesters, acid-amines, acid-alcohols, acid-nitriles, ester-amines, ester-alcohols, and ester-nitriles. | 10-15-2009 |
| 558341000 | The organic compound contains a carbonyl (e.g., ketene, etc.) | 1 |
| 20100029976 | METHOD FOR PRODUCING TETRAETHYLENEPENTAMINE - The invention relates to a process for preparing tetraethylenepentamine (TEPA) by hydrogenation of diethylenetriaminediacetonitrile (DETDN) over a catalyst. If appropriate, DETDN can also be present as a constituent of an amino nitrile mixture which additionally comprises diethylenetriaminemonoacetonitrile (DETMN). | 02-04-2010 |
| 558342000 | Replacing halogen with cyano | 1 |
| 20090287013 | PROCESS FOR PREPARING SUBSTITUTED 7-CYANO QUINONE METHIDES - A one-pot process of preparing a substituted 7-cyano quinone methide in which i) a substituted phenol is chloromethylated to form a substituted 4-chloromethylphenol; ii) converting the substituted 4-chloromethylphenol to a substituted 4-cyanomethylphenol; and iii) oxidizing the substituted 4-cyanomethylphenol to the substituted 7-cyano quinone methide, where steps i)-iii) are carried out in a single reaction vessel in a solvent system comprising water and one or more organic solvents and where after steps i) and ii) the aqueous portion of the reaction mixture is removed and the reagents for the subsequent step are added in aqueous solution. The 7-cyano quinone methides are effective inhibitors of the polymerization of reactive monomers. | 11-19-2009 |
| 558345000 | Aldehyde, and carboxylic acid halide or carboxylic acid anhydride, reacted with the inorganic cyanide | 2 |
| 20130053597 | PROCESS FOR PREPARING EDDN, EDMN, TETA AND DETA - A process for preparing ethylenediaminediacetonitrile (EDDN) and/or ethylenediamine-monoacetonitrile (EDMN) by conversion of formaldehyde (FA), hydrogen cyanide (HCN) and ethylenediamine (EDA), which comprises using stabilizer-free HCN, or HCN which has been stabilized with an organic acid, in the process. | 02-28-2013 |
| 20130197258 | PROCESS FOR PREPARING ACROLEIN FROM GLYCEROL OR GLYCERIN - The invention concerns a method for preparing acrolein from glycerol or glycerine, wherein dehydration of the glycerol or glycerine is achieved in the presence of a catalyst based on zirconium oxide and which active phase consists in at least | 08-01-2013 |
| 558350000 | Replacing oxygen or nitrogen, single bonded to carbon, by cyano | 1 |
| 20100137628 | PROCESS FOR THE SYNTHESIS OF (METHOXY-1-NAPHTHYL) ACETONITRILE AND APPLICATION IN THE SYNTHESIS OF AGOMELATINE - Process for the industrial synthesis of the compound of formula (I) | 06-03-2010 |
| 558351000 | Attaching cyano to the carbonyl carbon of an aldehyde or ketone (e.g., cyanohydrin formation, etc.) | 5 |
| 20100029977 | CYANATION CATALYST AND METHOD FOR PRODUCING OPTICALLY ACTIVE CYANHYDRIN COMPOUND USING THE SAME - The present invention can provide a cyanation catalyst represented by the general formula (I): | 02-04-2010 |
| 20100076214 | PROCESS FOR PREPARING CYANOHYDRINS AND THEIR USE IN THE PREPARATION OF ALKYL ESTERS OF METHACRYLIC ACID - The invention relates to a process for preparing acetone cyanohydrin and to a process for preparing alkyl methacrylates, in which an acetone cyanohydrin as can be prepared in accordance with the present invention is used. | 03-25-2010 |
| 20100261929 | PROCESS AND APPARATUS FOR PRODUCTION OF CYANOHYDRIN COMPOUND, AND PROCESS FOR PRODUCTION OF ALPHA-HYDROXYESTER COMPOUND - A process according to the present invention for producing a cyanohydrin compound flow-reacts a carbonyl compound with hydrogen cyanide in the presence of a catalyst, and can therefore reduce the residence time. This makes it possible to reduce the period of time over which the resulting cyanohydrin compound is exposed to an unreacted portion of the carbonyl compound. As a result, the resulting cyanohydrin compound can be prevented from reacting with the unreacted portion. This makes it possible to produce the cyanohydrin compound in good yield. That is, the process according to the present invention for producing a cyanohydrin compound produces a cyanohydrin compound in good yield from a carbonyl compound and hydrogen cyanide. | 10-14-2010 |
| 20110034718 | METHOD FOR PRODUCING OPTICALLY ACTIVE CYANOHYDRIN COMPOUND - A method of producing an optically active cyanohydrin compound represented by formula (3) | 02-10-2011 |
| 20120215022 | METHOD FOR THE PRODUCTION OF 2-HYDROXY-4-(METHYLTHIO)BUTYRONITRILE FROM 3-(METHYLTHIO)PROPANAL AND HYDROGEN CYANIDE - A method for the production of 2-hydroxy-4-(methylthio)butyronitrile having good storage stability in a multi-zone reactor, is provided. 3-methylmercaptopropionaldehyde is reacted with hydrogen cyanide in the presence of a base as catalyst in a main reaction zone of the multizone reactor to form a reaction mixture comprising the 2-hydroxy-4-(methylthio)butyronitrile, unreacted 3-methylmercaptopropionaldehyde, the catalyst and residual amounts of gaseous hydrogen cyanide. The residual gaseous hydrogen cyanide is removed from the main reaction zone to an absorption and post-reaction zone of the reactor which comprises a mixture of 3-methylmercaptopropionaldehyde and the catalyst; and the gaseous hydrogen cyanide is further reacted with the 3-methylmercaptopropionaldehyde in the absorption and post reaction zone. A molar ratio of hydrogen cyanide to 3-(methylthio)propanal in the main reaction zone is from 0.98 to 1.03. | 08-23-2012 |
