| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 558435000 | Acyclic (e.g., purification of saturated nitriles, etc.) | 47 |
| 20100094040 | PROCESS FOR PREPARING ALKALI METAL OR ALKALINE EARTH METAL TRICYANOMETHANIDES - The present invention relates to a process for preparing highly pure alkali metal or alkaline earth metal tricyanomethanides. | 04-15-2010 |
| 20110092728 | PROCESS FOR THE PRODUCTION OF NITROGEN OR PHOSPHORUS CONTAINING COMPOUNDS FROM SYNTHESIS GAS - A process is described for the production of one or more of linear nitriles, amides and formamides which includes reacting a nitrogen containing compound, such as ammonia or NO | 04-21-2011 |
| 558436000 | Sulfur attached indirectly to the cyano group by nonionic bonding | 3 |
| 558437000 | The sulfur is double bonded to oxygen | 2 |
| 20090143608 | SULFUR CONTAINING FLUOROALKYL AMINES AND ISOCYANATES - The present invention provides a method of making sulfur containing fluoroalkyl amines which overcomes the problems previously known methods. Unlike previously known methods, the method of the present invention can achieve higher yields of sulfur containing fluoroalkyl amines without resorting to costly solvents. Furthermore, unlike previously known methods, the method of the present invention can produce oxidized forms of sulfur containing fluoroalkyl amines wherein the sulfur atom thereof is oxidized. | 06-04-2009 |
| 20140330037 | CRYSTALLINE FORM OF 3-METHYLSULFONYLPROPIONITRILE - The present invention relates to processes for preparing 3-methylsulfonylpropionitrile. The processes provide a good yield and a good purity of the final product and provide a controllable reaction. The present invention also relates to a crystalline form of 3-methylsulfonylpropionitrile having X-ray diffraction peaks at 13.9±0.1, 19.2±0.1, 20.0±0.1, 22.5±0.1, 23.2±0.1, 25.7±0.1, 28.1±0.1, 29.9±0.1, and 30.6±0.1 degrees 2θ, and wherein the most intense peak is the peak at 13.9±0.1 degrees 2θ. | 11-06-2014 |
| 558438000 | Two carbons bonded directly to the same divalent sulfur | 1 |
| 20160176810 | GLYCOSIDE COMPOUND, METHOD FOR PRODUCING THIOETHER, ETHER, METHOD FOR PRODUCING ETHER, METHOD FOR PRODUCING GLYCOSIDE COMPOUND, METHOD FOR PRODUCING NUCLEIC ACID | 06-23-2016 |
| 558440000 | Carbonyl attached indirectly to the cyano group by nonionic bonding (e.g., aldehydes, ketones, etc.) | 16 |
| 20120197036 | METHOD FOR MANUFACTURING KETONE - A method for manufacturing a ketone, includes oxidizing an internal olefin or a cyclic olefin having a functional group containing a hetero atom and one carbon-carbon double bond or more at a position other than terminals of a molecule thereof in an amide-based solvent in the presence of water, a palladium catalyst, and molecular oxygen, without oxidizing the functional group, thereby bonding an oxo group to at least one of the carbon atoms constituting the carbon-carbon double bond. The amide-based solvent is represented by formula (1): | 08-02-2012 |
| 20160115120 | METHOD FOR THE CONTROLLED HYDROFORMYLATION AND ISOMERIZATION OF A NITRILE/ESTER/OMEGA UNSATURATED FATTY ACID - A method to synthesize a fatty nitrile/ester aldehyde comprising the following steps:
| 04-28-2016 |
| 558441000 | Oxygen bonded directly to the carbonyl group (e.g., carboxylic acid esters, etc.) | 13 |
| 20090018360 | PROCESS FOR PREPARATION OF ALKYL AND ALCOXYALKYL-ALPHA-CYANOACRYLATES BY DEPOLYMERISATION OF POLY(ALKYL-ALPHA CYANOACRYLATES) OR POLY(ALCOXYALKYL-ALPHA-CYANOACRYLATES) AND ITS USAGE AS TECHNICAL AND/OR MEDICAL ADHESIVE - This invention is related to the preparation of alkyl or alkoxyalkyl-α-cyanoacrylates in monomeric form by depolymerisation of the corresponding poly(alkyl-α-cyanoacrylates) or poly(alkoxyalkyl-α-cyanoacrylates) (PCA). The PCA's are obtained preferably by base-catalyzed condensation of a cyanoacetate with formaldehyde (or a polymer of the latter). According to the invention, the poly(alkyl-α-cyanoacrylate) or poly(alkoxyalkyl-α-cyanoacrylate), the condensation product, is mixed with a depolymerisation system comprising phosphorus pentoxide P | 01-15-2009 |
| 20120184769 | METHOD FOR ISOLATING METHYLGLYCINENITRILE-N,N-DIACETONITRILE - A method for isolating methylglycinenitrile-N,N-diacetonitrile (MGDN) from an aqueous mixture comprising MGDN is provided The method comprises cooling the aqueous mixture in one or more steps In one of these steps the mixture is cooled at a cooling rate of at least 20 K/h from a temperature above the solidification point of MGDN to a temperature below the solidification point of MGDN The method is implemented continuously | 07-19-2012 |
| 20120264967 | PROCESS FOR MAKING (R) -3-(2,3-DIHYDROXYPROPYL)-6-FLUORO-5-(2-FLOURO-4-IODOPHENYLAMINO)-8-METHYL- PYRIDO[2,3-d]PYRIMIDINE-4,7(3H,8H)-DIONE AND INTERMEDIATES THEREOF - The present invention relates generally to processes of making (R)-3-(2,3-Dihydroxypropyl)-6-fluoro-5-(2-fluoro-4-iodophenylamino)-8-methylpyrido[2,3-d]pyrimidine-4,7(3H,8H)-dione, intermediates thereof, and a process for making a particular polymorph of (R)-3-(2,3-Dihydroxypropyl)-6-fluoro-5-(2-fluoro-4-iodophenylamino)-8-methylpyrido[2,3-d]pyrimidine-4,7(3H,8H)-dione. | 10-18-2012 |
| 20150353479 | CROSS METATHESIS PROCESS - A process for the synthesis of an unsaturated product by cross metathesis between a first unsaturated compound having at least 8 carbon atoms and a second unsaturated compound having less than 8 carbon atoms, including: feeding a reactor with the first unsaturated compound, the second unsaturated compound and a metathesis catalyst; withdrawing an output stream, at the output of the reactor; separating the output stream, making it possible to recover at least: on the one hand, the unsaturated product and, on the other hand, the first unsaturated compound and the second unsaturated compound; recycling the first unsaturated compound and the second unsaturated compound to the reactor; in which the first unsaturated compound is capable of producing an unsaturated coproduct, including at least 14 carbon atoms, by homometathesis; and in which the flow rates for feeding the reactor with first unsaturated compound and with second unsaturated compound are adjusted. | 12-10-2015 |
| 20160002151 | METATHESIS PROCESS COMPRISING THE EXTRACTION OF THE ETHYLENE FORMED BY MEANS OF A MEMBRANE - A process for the metathesis of two α-olefin compounds, wherein it comprises the use of at least one membrane for extracting ethylene from the reaction medium, said membrane being permeable to gases and impermeable to liquids. A process for the metathesis of two α-olefin compounds, carried out in a reaction device including two zones separated by said at least one membrane: a first zone, fed with reactants and catalyst, in which the liquid-phase metathesis reaction is initiated and the liquid reaction medium is circulated in contact with the wall constituted by the membrane, and a second zone, fed with a gaseous stream that is inert with respect to the membrane and the constituents of the reaction medium of the first zone. | 01-07-2016 |
| 558442000 | Additional carbonyl attached indirectly to the cyano group by nonionic bonding | 4 |
| 20100286433 | METHYLIDENE MALONATE PROCESS - Novel improved processes for the production and isolation of methylidene malonates via direct and indirect adduct processes. | 11-11-2010 |
| 20110092729 | PROCESS OF HYDROCYANATION OF UNSATURATED CARBOXYLIC ACID DERIVATIVES - The present invention is directed to compositions of specific carboxylic acid, fatty acid or oil derivatives containing nitrile groups and methods of their preparation. The preparation involves a hydrocyanation reaction. A method of hydrogenating the nitrile containing carboxylic acid acids obtained by above hydrocyanation to produce amine containing carboxylic acids is also disclosed in this invention. | 04-21-2011 |
| 20120215023 | Method for Preparative Fragmenting Using an Inductively Heated Heating Medium - A method for performing a chemical reaction to produce a target compound by heating a reaction medium containing a reactant in a reactor, the reaction medium being brought into contact with a solid heating medium that can be heated by electromagnetic induction and that is located inside the reactor and surrounded by the reaction medium and the heating medium being heated by electromagnetic induction with the aid of an inductor, causing the target compound to form, and the target compound being separated from the heating medium, wherein the target compound has a lower molar mass than the reactant and at least one covalent bond of the reactant is cleaved in order to produce said target compound from the reactant. | 08-23-2012 |
| 20130116465 | ALLYL 2-CYANOACRYLATE PREPOLYMER, PREPARATION METHOD THEREOF, AND BIOADHESIVE COMPOSITION COMPRISING THE PREPOLYMER - An allyl 2-cyanoacrylate prepolymer, a preparation method thereof, and a bioadhesive composition including the prepolymer thus produced are provided, and more particularly, an allyl 2-cyanoacrylate prepolymer having a structure, in which at least one double bond in a molecule remains at an adjacent site to a cyano group prepared by causing a prepolymerization in a double bond moiety of an allyl group by pre-polymerizing through heating 2-cyanoacrylate having at least two double bonds in a molecule such as allyl 2-cyanoacrylate, a method for preparing the same, and a bioadhesive composition including the prepolymer thus produced are provided. | 05-09-2013 |
| 558443000 | The cyano group is bonded directly to the carbon adjacent to the carbonyl carbon (e.g., alpha cyano acrylates, etc.) | 4 |
| 20120203021 | METHOD FOR PRODUCING CYANOACRYLATE ESTERS IN THE PRESENCE OF TRANSITION METAL CATALYSTS - The present invention relates to a method for producing cyanoacrylic acid esters. The method is based substantially on a transesterification reaction, wherein the transesterification reaction is performed in the presence of at least one transition metal catalyst that is formed by reacting at least one hydroxyl group-containing support material with at least one transition metal alkoxide. | 08-09-2012 |
| 20130310594 | 1,1-DISUBSTITUTED ETHYLENE PROCESS - An improvement in the production of 1,1-disubstituted ethylenes is attained by contacting a 1,1-disubstituted ethylene with alumina and separating the alumina to obtain a 1,1-disubstituted ethylene with a good combination of cost, purity, shelf life and cure rate. | 11-21-2013 |
| 20130331598 | 2-CYANOACRYLATE-PURIFYING METHOD - Provided is a 2-cyanoacrylate-purifying method for decoloring a 2-cyanoacrylate which has been colored, and preventing further coloring of the 2-cyanoacrylate thus decolored. The 2-cyanoacrylate-purifying method includes the steps of: (a) adding a specific polyhydric aromatic compound to the 2-cyanoacrylate which has been colored; and (b) storing, at a temperature in a range of 0° C. to 40° C. for 0.5 day or more, the resulting mixture obtained in the step (a), and then subjecting the mixture to reduced pressure distillation. | 12-12-2013 |
| 20140051881 | PROCESS FOR PREPARATION OF DICYANOCARBOXYLATE DERIVATIVES - The present disclosure provides a process for preparing 2,3-dicyanopropionic acid ester of formula (I); said process comprising the following steps: i) treating an alkali metal cyanide dissolved in a solvent with a solution of 2-cyano-2-propenoic acid ester of formula (II) at a temperature ranging between 0° C. and 50° C. for a time period ranging between 2 hours and 15 hours followed by cooling below 20° C. to obtain a sodium salt of 2,3-dicyanopropionic acid ester of formula (I); and | 02-20-2014 |
| 558445000 | Nitrogen bonded directly to the carbonyl (e.g., ureas, etc.) | 1 |
| 20100179345 | NOVEL PROCESS FOR THE PREPARATION OF PREGABALIN - The present invention encompasses novel intermediates of pregabalin, namely 3-cyano-5-methyl hexanamide (28) and 3-(amino methyl)-5 methyl hexanamide (29), and processes for their preparation. The invention also encompasses a process for converting the novel pregabalin intermediates into pregabalin, Formula (I): The present invention further provides a cost effective method for the synthesis of (S)-pregabalin, which involves the recovery of mandelic acid and tartaric acid used in the resolution process and recycling them, increasing the yields of the final product formed, which substantially reduced the cost of the production. | 07-15-2010 |
| 558446000 | Nitrogen, double bonded to carbon, attached indirectly to the cyano group by nonionic bonding (e.g., imines, oximes, etc.) | 2 |
| 20110313186 | HYDROGENATION CATALYSTS, THE PRODUCTION AND THE USE THEREOF - The present invention relates to catalysts and processes for preparation thereof, said catalysts being obtainable by contacting a monolithic catalyst support with a suspension which comprises one or more insoluble or sparingly soluble compounds of the elements selected from the group of the elements cobalt, nickel and copper. The invention further relates to the use of the inventive catalyst in a process for hydrogenating organic substances, especially for hydrogenating nitriles, and to a process for hydrogenating organic compounds, which comprises using an inventive catalyst in the process. | 12-22-2011 |
| 20120142957 | METHOD FOR PRODUCTION OF N-(2-AMINO-1,2-DICYANOVINYL)IMIDATES, METHOD FOR PRODUCTION OF N-(2-AMINO-1,2-DICYANOVINYL)FORMAMIDINE, AND METHOD FOR PRODUCTION OF AMINOIMIDAZOLE DERIVATIVES - A method for producing N-(2-amino-1,2-dicyanovinyl)formamidine, including the steps of reacting an N-(2-amino-1,2-dicyanovinyl)formimidate and ammonia by adding aqueous ammonia to a solution or suspension of an N-(2-amino-1,2-dicyanovinyl)formimidate in ether, or alternatively directly adding an N-(2-amino-1,2-dicyanovinyl)formimidate or adding a solution or suspension of an N-(2-amino-1,2-dicyanovinyl)formimidate in ether to a liquid containing ether and aqueous ammonia. | 06-07-2012 |
| 558447000 | Plural carbons bonded directly to the same oxygen | 1 |
| 558450000 | Processes for formation of an ether group (e.g., cyanoethylation of alcohols, etc.) | 1 |
| 20140018567 | METHOD FOR PREPARING DINITRILE COMPOUND - Disclosed is a method for preparing a dinitrile compound. The method includes reacting an alcohol compound with a nitrile compound having a terminal carbon-carbon unsaturated bond under anhydrous conditions. A potassium alkoxide having 1 to 5 carbon atoms is used as a catalyst in the course of the reaction. According to the method, a high-purity dinitrile compound can be prepared in a simple manner within a short reaction time indicating high productivity. | 01-16-2014 |
| 558451000 | Having -OH bonded directly to carbon (wherein H of -OH may be replaced by substituted or unsubstituted ammonium, or by a Group IA or IIA light metal) by dehydroacylation, etc.) | 1 |
| 20090082587 | Process for chemical reactions involving cyanohydrins - The present invention provides a method for minimizing the decomposition of cyanohydrins in exothermic chemical reactions involving cyanohydrins. The method comprises providing a reaction medium and reactants to a tubular reactor having internal mixing means, mixing the reaction medium and reactants to form a homogenous reaction mixture, removing heat from the reaction process and reacting the reactants to produce a mixed product having a bulk temperature. The method may further comprise cooling the reaction medium to a temperature from 1-10° C. cooler than the bulk temperature of the mixed product prior to providing the reaction medium to the tubular reactor. | 03-26-2009 |
| 558452000 | Nitrogen attached indirectly to the cyano group by nonionic bonding | 11 |
| 20090069590 | PROCESS FOR PREPARING AMINOALKYLNITRILES AND DIAMINES FROM SUCH NITRILES - The present invention relates to a process for preparing an aminoalkyl nitrile by reaction of a corresponding monoamine with a corresponding alkenyl nitrile in a continuous mode of operation, which comprises the steps
| 03-12-2009 |
| 20090171111 | Method for Producing Sodium Chloride-Free Ammonium Nitriles - This invention relates to a method for producing sodium chloride-free compounds of formula (I), | 07-02-2009 |
| 20090177004 | PROCESS OF MAKING 3-AMINOPENTANENITRILE - A process for making 3-aminopentanenitrile from a crude 2-pentenenitrile (“crude 2PN”) comprising 2-pentenenitrile, 2-methyl-2-butenenitrile, and 2-methyl-3-butenenitrile includes contacting the crude 2PN with an ammonia-containing fluid and water. The ammonia-containing fluid can include at least one reactant selected from the group consisting of ammonia, aqueous ammonia, and ammonium hydroxide. | 07-09-2009 |
| 20120029225 | DMAPN Having a Low DGN Content and a Process for Preparing DMAPA from DMAPN Having a Low DGN Content - The present invention relates to a process for preparing 3-dimethylaminopropylamine (DMAPA) by reacting 3-dimethylaminopropionitrile (DMAPN) with hydrogen in the presence of a catalyst, wherein the DMAPN used has a content of 2-(dimethylaminomethyl)glutaronitrile (DGN) of 300 ppm by weight or less, based on the DMAPN used. | 02-02-2012 |
| 20140194643 | Process for the Preparation of Aminonitrile and Diamine, and Corresponding Devices - The present invention relates to a continuous process for the preparation of an aminonitrile comprising the stages of:
| 07-10-2014 |
| 558454000 | Plural cyano groups bonded directly to the same chain (e.g., adiponitrile, etc.) | 2 |
| 558456000 | Purification or recovery of saturated hydrocarbon dinitriles (e.g., from mixtures with cyanocyclopentanonimine, 2-cyanocyclopenten-1-ylamine, etc.) | 2 |
| 20080319219 | PROCESS FOR IMPROVING ADIPONITRILE QUALITY - A process and apparatus for reacting deleterious impurities contained in adiponitrile (ADN) comprises feeding ADN and an ozone containing gas into a co-current plug flow reactor containing static mixer elements, to oxidize at least a portion of the impurities, thereby producing a reactor discharge, which is processed to produce an ozone-treated ADN product. | 12-25-2008 |
| 20160376227 | METHOD FOR PURIFYING ADIPODINITRILE (ADN) - The present invention relates to a process for purifying adiponitrile (ADN), wherein crude ADN is introduced into a rectification apparatus (R | 12-29-2016 |
| 558459000 | Hydrogenation of dinitriles, or displacement of halo, hydroxy, or alkoxy by ammonia or substituted ammonia | 4 |
| 20080319220 | Preparation of Both Hexamethylene Diamine and Aminocapronitrile - Hexamethylenediamine and aminocapronitrile are simultaneoussly produced by hemihydrogenation of adiponitrile, which includes a stage of separation of the hexamethylenediamine from the hydrogenate by distillation of the hexamethylenediamine, the distillation of the hexamethylenediamine being carried out from the hydrogenate containing a free acid and/or an alkali metal or ammonium acid salt, whereby a top fraction A recovered at the column top of the stage of distillation of the hexamethylenediamine is essentially crude hexamethylenediamine and a small amount of THA; the amount of THA (tetrahydroazepine) present in the crude hexamethylenediamine constitutes a small proportion of the THA present in the hydrogenate. | 12-25-2008 |
| 20110313187 | METHOD FOR IMPROVING THE CATALYTIC ACTIVITY OF MONOLITHIC CATALYSTS - The present invention relates to a process for improving the catalytic properties of a catalyst comprising one or more elements selected from the group consisting of cobalt, nickel and copper, said catalyst being present in the form of a structured monolith, by contacting the catalyst with one or more basic compounds selected from the group of the alkali metals, alkaline earth metals and rare earth metals. The invention further relates to a process for hydrogenating compounds which comprise at least one unsaturated carbon-carbon, carbon-nitrogen or carbon-oxygen bond in the presence of a catalyst comprising one or more elements selected from the group consisting of cobalt, nickel and copper, said catalyst being present in the form of a structured monolith, by contacting the catalyst with one or more basic compounds selected from the group of the alkali metals, alkaline earth metals and rare earth metals. The present invention also relates to the use of a basic compound selected from the group of the alkali metals, alkaline earth metals and rare earth metals for improving the catalytic properties of a catalyst comprising cobalt and/or copper and/or nickel, said catalyst being present in the form of a structured monolith. | 12-22-2011 |
| 20110313188 | METHOD FOR IMPROVING THE CATALYTIC ACTIVITY OF MONOLITHIC CATALYSTS - The present invention relates to a catalyst comprising one or more elements selected from the group consisting of cobalt, nickel and copper, said catalyst being present in the form of a structured monolith, wherein said catalyst comprises one or more elements selected from the group of the alkali metals, alkaline earth metals and rare earth metals. The invention further relates to processes for preparing the inventive catalyst and to the use of the inventive catalyst in a process for hydrogenating organic substances, especially for hydrogenating nitriles. | 12-22-2011 |
| 20120172616 | METHOD OF SEPARATING OFF MAGNETIZABLE CATALYST PARTICLES BY MEANS OF MAGNETIC FILTERS - The present invention relates to a process comprising at least the steps (A) chemical reaction of at least one organic compound in the presence of at least one heterogeneous catalyst in a reaction mixture and (B) removal of the at least one heterogeneous catalyst by means of a magnetic filter, and also the use of a magnetic filter for separating off catalyst particles in a process for the hydrogenation of at least one organic compound. | 07-05-2012 |
| 558460000 | Halogen attached indirectly to the cyano group by nonionic bonding | 1 |
| 20120190879 | HYDROCHLORINATION OF ELECTRON-DEFICIENT ALKENES - The present invention pertains to a method for the hydrochlorination of electron deficient alkenes, particularly alkenes having the functional groups COOH, CONH | 07-26-2012 |
| 558462000 | Carbon to carbon unsaturation containing | 7 |
| 20090270648 | FLUIDIZED BED CATALYST FOR PRODUCING ACRYLONITRILE AND PROCESS FOR PRODUCING ACRYLONITRILE - A fluidized bed catalyst for producing acrylonitrile capable of maintaining a high yield of acrylonitrile over a long time, and a process for producing acrylonitrile using the catalyst are provided. A fluidized bed catalyst for producing acrylonitrile having a composition represented by a following general formula: | 10-29-2009 |
| 20100069660 | 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 |
| 20100125147 | DISPERSANT ANTIFOULANT FOR ACRYLONITRILE - A styrene sulfonate polymer which is highly effective at preventing fouling of equipment used in the manufacturing process of acrylonitrile. The styrene sulfonate polymer is particularly effective when introduced into the quench column, the recovery stage and the wastewater processing section of the acrylonitrile manufacturing process. | 05-20-2010 |
| 20100152475 | PROCESS FOR CONTINUOUSLY PRODUCING GEOMETRIC SHAPED CATALYST BODIES K - A process for producing geometric shaped catalyst bodies K whose active material is a multielement oxide which comprises the element Mo, the elements Bi and/or V and one or more of the elements Co, Ni, Fe, Cu and alkali metals, in which sources of the different elements are used to obtain a finely divided mixture which is coarsened to a powder by press agglomeration, the coarsened powder is used to form, by press agglomeration, shaped bodies V which are separated into undamaged shaped bodies V | 06-17-2010 |
| 20130006009 | PROCESS FOR CONTINUOUSLY PRODUCING GEOMETRIC SHAPED CATALYST BODIES K - A process for producing geometric shaped catalyst bodies K whose active material is a multielement oxide which comprises the element Mo, the elements Bi and/or V and one or more of the elements Co, Ni, Fe, Cu and alkali metals, in which sources of the different elements are used to obtain a finely divided mixture which is coarsened to a powder by press agglomeration, the coarsened powder is used to form, by press agglomeration, shaped bodies V which are separated into undamaged shaped bodies V | 01-03-2013 |
| 20150329480 | ON-LINE ANALYSIS OF ACRYLONITRILE PRODUCT - An apparatus comprises a first controller configured to control at least the flow rate of a polymerization inhibitor or acrylonitrile product to a first location where the two are mixed. The apparatus comprises a first on-line analyzer configured to measure polymerization inhibitor concentration in the acrylonitrile product at a second location, the second location downstream of the first location. The first on-line analyzer is configured to provide information relating to the measured inhibitor concentration at the second location to the first controller, the first controller configured process the information from the first on-line analyzer and to adjust at least a first operating parameter of a first addition device if the measured inhibitor concentration at the second location is outside a first predetermined condition. A second controller and a second on-line analyzer are provided to provide similar control of water addition to acrylonitrile product. | 11-19-2015 |
| 558463000 | Purification or recovery | 1 |
| 558465000 | Of nitriles prepared by hydrocyanation (e.g., by reaction of acetylene with hydrogen cyanide, etc.) | 1 |
| 20110166377 | METHOD FOR THE SEPARATION OF PENTENENITRILE ISOMERS - A process is described for separating mixtures of isomeric pentenenitriles, in which at least one isomer is removed from the mixture, wherein the separation of the substance mixtures of isomeric pentenenitriles is effected distillatively under reduced pressure. | 07-07-2011 |
| 558467000 | Processes for preparation of saturated nitriles | 3 |
| 20080227998 | Method For Producing 3-Pentenenitrile - A process is described for preparing 3-pentenenitrile, characterized by the following process steps:
| 09-18-2008 |
| 20110060155 | PROCESS FOR PREPARING AND METHOD OF PURIFYING ALKALI METAL AND ALKALINE EARTH METAL TRICYANOMETHANIDES - The present invention relates to an industrially usable process for preparing alkali metal and alkaline earth metal tricyanomethanides in particularly high purity. | 03-10-2011 |
| 20160194276 | CATALYTIC ESTER DECARBONYLATION | 07-07-2016 |
