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| Number | Title | Issue Date |
| 7091381 | Process for preparation of cyclohexanone oxime A method for producing cyclohexanone oxime, which comprises the steps of (1) subjecting to an amination reaction a starting material selected from the group consisting of cyclohexanol, cyclohexanone and a mixture thereof, thereby obtaining cyclohexylamine, and (2) s... | 08/15/2006 |
| 7022844 | Amide-based compounds, production, recovery, purification and uses thereof Methods are disclosed of producing and purifying at least one amide. In accordance with one of the methods disclosed herein, the at least one amide is produced by providing an organic liquid comprising at least one oxime, providing at least one catalyst, adding the ... | 04/04/2006 |
| 6989444 | Process for producing lactam A method for producing a lactam, which comprises subjecting an alicyclic primary amine to an oxidation reaction in the presence of a catalyst comprising a silicon oxide, to thereby obtain a lactam. A catalyst comprising a silicon oxide which is for use in the above-... | 01/24/2006 |
| 6632964 | Process for production of aliphatic aldehyde-acid and/or aliphatic dicarboxylic acid and catalyst for the production A process of producing an aliphatic aldehyde-acid (e.g., adipaldehyde-acid) and/or an aliphatic dicarboxylic acid (e.g., adipic acid) comprising oxidizing a cyclic ketone (e.g., cyclohexanone) with molecular oxygen in the presence of a fixed catalyst whic... | 10/14/2003 |
| 6479658 | Method for cyclizing hydrolysis of an aminonitrile compound into lactam The invention relates to a process for the cyclizing hydrolysis of an aminonitrile compound into a lactam in the presence of a catalyst. The invention relates more particularly to a process for the cyclizing hydrolysis of an aminonitrile compound in the presen... | 11/12/2002 |
| 6355794 | Lactam derivatives for melamine impregnating resins, and resin mixtures containing them N-Alkoxymethylactams are obtained by reacting lactams with formaldehyde and hydroxyl-containing compounds selected from diol monoethers. The substituted lactams are useful as an additive to melamne impregnating resings.... | 03/12/2002 |
| 6245907 | Process for producing a high purity caprolactam Disclosed is a process for producing a high purity caprolactam which comprises converting cyclohexene obtained by the partial hydrogenation of benzene into cyclohexanol through hydration, converting the cyclohexanol into cyclohexanone through dehydrogenat... | 06/12/2001 |
| 4463177 | Process for making m-hydroxyphenyl substituted compounds m-Hydroxyphenyl substituted compounds of formula ##STR1## where R is an organic radical and R1 is hydroen or an organic radical are prepared by dehydrohalogenating a compound of formula ##STR2## (where X is chlorine or bromine, and R ... | 07/31/1984 |
| 4292043 | Process for working up effluent containing ammonium sulphate A process for the working up of ammonium sulphate-containing effluent which is contaminated with organic compounds and optionally also ammonium nitrate, comprising evaporating the effluent to produce water vapor which is removed, a concentrated liquid and... | 09/29/1981 |
| 4165328 | Process for separating 11-cyanoundecanoic acid, cyclohexanone and &3xb5; - Disclosed is a process for separating 11-cyanoundecanoic acid, cyclohexanone and &3xb5;-caprolactam from a pyrolysis product obtained by pyrolyzing 1,1'-peroxydicyclohexylamine in the presence of steam at a temperature of 300° to 1,000° C. The pyrolysis... | 08/21/1979 |
| 3947406 | Process for the production of lactams Compounds of formula ##EQU1## where X,X' are divalent aliphatic radicals which may be the same or different are heated to decompose them to lactams.... | 03/30/1976 |
