| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 558318000 |
Ammonia utilized
| 48 |
| 558315000 |
Reactant is an aldehyde or ketone, or a compound having carbon double bonded to nitrogen (e.g., ammoxidation of acrolein, etc.)
| 13 |
| 558311000 |
Reactant is a carboxylic acid, or an amide, anhydride, ester, halide, or salt thereof
| 9 |
| 558316000 |
Reactant contains -OH bonded directly to acyclic or alicyclic carbon (wherein H of -OH may be replaced by substituted or unsubstituted ammonium, or by a Group IA or IIA light metal) | 2 |
| 20110021804 | PRODUCTION OF COMPOUNDS COMPRISING NITRILE FUNCTIONAL GROUPS - The present invention relates to a process for producing compounds comprising at least one nitrile function by hydrocyanation of a compound comprising at least one non-conjugated unsaturation. | 01-27-2011 |
| 20160023995 | PROCESS FOR THE PRODUCTION OF NITRILES USING A CATALYST BASED ON ANTIMONY AND IRON - A compound of the formula Sb | 01-28-2016 |
| 558317000 |
Utilizing a nitrogen oxide or an azide | 1 |
| 20140350282 | 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. | 11-27-2014 |
| 558314000 |
Utilizing nitryl halide, nitrosyl halide, HCH=NO- or HHNO- (wherein substitution may be made for hydrogen only; e.g., oximes, oxime esters, hydroxylamine salts, olefin-nitrosyl chloride adducts, etc.) | 1 |
| 20150148558 | METHOD FOR PRODUCING NITRILE - The present invention provides a method for producing a nitrile represented by general formula (1) (in the formula, R denotes an optionally substituted alkyl group, alkenyl group, dienyl group, aralkyl group or aryl group having a total of 3-20 carbon atoms), and the method includes heating an aldoxime represented by general formula (2) (in the formula, R denotes the same groups as those mentioned above) at 80-250° C. in the presence of an alkali metal or alkaline earth metal salt of phosphoric acid (catalyst A) and distilling off water generated as the reaction progresses to outside the reaction system. | 05-28-2015 |
| Entries |
| Document | Title | Date |
|---|
| 20080221350 | Process for Preparing 2-Arylcarbonyl Compounds, 2-Aryl Esters and 2-Arylnitriles and their Heteroaromatic Analogues - Process for preparing compounds by cross-coupling of enolizable carbonyl compounds, nitriles or their analogues with substituted aryl or heteroaryl compounds in the presence of a Brönsted base and of a catalyst or precatalyst containing a.) a transition metal, a complex, a salt or a compound of this transition metal from the group V, Mn, Fe, Co, Ni, Rh, Pd, Ir, Pt) and b.) at least one sulphonated phosphane ligand in a solvent or solvent mixture. | 09-11-2008 |
| 20080242883 | Method for the Hydrocyanation of Butadiene - A process is described for preparing 3-pentenenitrile by hydrocyanating 1,3-butadiene in the presence of at least one catalyst, wherein the reaction is carried out in a loop reactor having external pumped circulation and jet nozzle for driving the internal circulation. | 10-02-2008 |
| 20080281119 | Separation of Nickel(0) Complexes and Phosphorus-Containing Ligands from Nitrile Mixtures - A process for extractively removing nickel(0) complexes having phosphorus ligands and/or free phosphorus ligands from a reaction effluent of a hydrocyanation of unsaturated mononitriles to dinitriles by extraction by means of a hydrocarbon, a phase separation of the hydrocarbon and of the reaction effluent into two phases being effected at a temperature T (in ° C.), | 11-13-2008 |
| 20090171110 | PROCESS FOR PREPARING N-METHYL-3, 4-DIMETHOXYPHENYLETHYLAMINE - Provided are intermediates useful for the preparation of verapamil and methods for their preparation. | 07-02-2009 |
| 20100029975 | Integrated process for preparing a carboxylic acid from an alkane - The present invention relates to an integrated process for producing unsaturated carboxylic acids from the corresponding C | 02-04-2010 |
| 20100240921 | Catalyst for Oxidation or Ammoxidation, and Process for Producing the Same - It is an object to provide a novel oxide catalyst for producing an unsaturated acid or unsaturated nitrile by which reaction results are good and a high yield can be stably maintained for a prolonged period of time, a process for producing the oxide catalyst, and a process for producing an unsaturated acid or unsaturated nitrile using the oxide catalyst. According to the present invention, there is provided an oxide catalyst represented by following compositional formula (1): | 09-23-2010 |
| 20120004440 | PROCESS FOR PRODUCING COMPOUNDS COMPRISING NITRILE FUNCTIONS - The present invention relates to a process for producing compounds comprising at least one nitrile function by hydrocyanation of a compound comprising at least one non-conjugated unsaturation. | 01-05-2012 |
| 20130211121 | 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 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, which separates catalyst degradation products and reaction byproduct from the catalyst. | 08-15-2013 |
| 20130211122 | PROCESS FOR MAKING NITRILES - An improved multi-reaction zone process provides for 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 an optional 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. A portion of the first catalyst is purified and recycled. Zero valent nickel is added to the purified first catalyst before it is recycled. | 08-15-2013 |
| 20130211123 | 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 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, which separates catalyst degradation products and reaction byproducts, such as mononitriles having 9 carbon atoms, from the catalyst. | 08-15-2013 |
| 20130211124 | 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. Phenolic compounds, such as phenol and cresols, are present as a catalyst impurity or as a catalyst degradation product. Phenolic compounds are removed during the nitrile manufacturing process. | 08-15-2013 |
| 20130217909 | PROCESS FOR OBTAINING ACROLEIN BY CATALYTIC DEHYDRATION OF GLYCEROL OR GLYCERIN - A continuous process for obtaining acrolein by catalytic dehydration of glycerol or glycerin, in the presence of an acid catalyst, wherein said process comprises the concomitant regeneration of said catalyst and is carried out in a fluidized bed reactor, said reactor comprising two zones, a first zone, or lower zone, termed catalyst regeneration zone, in which a fluidization gas comprising oxygen is introduced, and a second zone, or upper zone, termed reaction zone, in which the glycerol or glycerin is introduced and converted into acrolein. | 08-22-2013 |
| 20140012033 | METHOD FOR PREPARING DIFLUOROACETONITRILE AND THE DERIVATIVES THEREOF - The present invention relates to a method for preparing difluoracetonitrile and the derivatives thereof. The method for preparing difluoroacetonitrile according to the invention is characterized in that it includes reacting halogenodifluoromethane and a source of cyanide anions in an alkaline medium. The invention also relates to the use of difluoroacetonitrile as an intermediate in the manufacture of difluoroacetic acid and the salts, esters, or amide thereof | 01-09-2014 |
| 20140249327 | METHOD FOR PRODUCING NITRILE COMPOUNDS FROM ETHYLENICALLY UNSATURATED COMPOUNDS - The present invention relates to a method for the hydrocyanation of organic ethylenically unsaturated compounds including at least one nitrile function. The invention specifically relates to a method for the hydrocyanation of a hydrocarbon compound including at least one ethylenic unsaturation by a reaction with hydrogen cyanide in a liquid medium and in the presence of a catalyst including a metal element selected from the transition metals and an organophosphorous ligand, the organophosphorous gaud including a compound of general formula (I), where R | 09-04-2014 |
| 20150314279 | PROCESS FOR PRODUCING PENTENENITRILES - The invention provides methods useful in the industrial scale process for hydrocyanation of butadiene to adiponitrile for recycle of unwanted byproduct 2-methyl-3-butenenitrile (2M3BN) by conversion to process intermediate pentenenitrile. The invention provides a process for generating catalysts useful for carrying out the hydrocyanation of butadiene to adiponitrile, the process comprising contacting the 2M3BN and a solution of a nickel-ligand catalyst in cis-2-pentenenitrile (cis-2PN), trans-2-pentenenitrile (trans-2PN), or a mixture thereof. The improved methods of the invention can provide improved catalyst solubility for bidentate ligands without a requirement for a Lewis acid catalyst promoter such as zinc chloride to be present. | 11-05-2015 |
| 20150314280 | COMPOSITION FOR IMPROVED NICKEL-LIGAND SOLUBILITY - In the hydrocyanation reaction of butadiene proceeding through pentenenitriles to adiponitrile, catalysis by complexes of zerovalent nickel with bidentate phosphorus-based ligands of the NiL | 11-05-2015 |
| 20160009638 | PROCESS FOR PRODUCING COMPOUNDS COMPRISING NITRILE FUNCTIONS | 01-14-2016 |
