| Patents for C07D 201 - Preparation, separation, purification, or stabilisation of unsubstituted lactams (2,192) |
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| 10/03/2012 | EP2505578A2 Methods and Compounds for Producing Dipeptidyl Peptidase IV Inhibitors and Intermediates thereof |
| 10/03/2012 | CN1791401B Methods and compounds for producing dipeptidyl peptidase IV inhibitors and intermediates thereof |
| 10/03/2012 | CN102702102A Method for preventing hydroxylamine in inorganic liquid from decomposing in process of preparing caprolactam |
| 10/02/2012 | US8278462 Methods and compounds for producing dipeptidyl peptidase IV inhibitors and intermediates thereof |
| 09/19/2012 | CN102686562A The preparation of caprolactam from 6-amino caproic acid obtained in a fermentation process |
| 09/19/2012 | CN102675176A Method for producing caprolactam by taking high-purity benzene as raw material |
| 09/19/2012 | CN102671692A H-ZSM-5 zeolite molecular sieve, and preparation and application thereof |
| 09/18/2012 | US8268990 Compounds |
| 09/12/2012 | CN102666483A Caprolactam recovery with membrane treatment |
| 09/12/2012 | CN102658191A Catalyst for preparing caprolactam from cyclohexanone-oxime by liquid-phase Beckmann rearrangement |
| 09/05/2012 | CN202415417U Cyclohexanone oxime gasification unit for preparation of caprolactam by gas-phase Beckmann rearrangement |
| 09/05/2012 | CN101429149B Method for producing Epsilon-hexanolactam with cyclohexanone oxime gas-phase beckmann rearrangement |
| 08/29/2012 | CN101429148B Process for production of Epsilon-hexanolactam |
| 08/22/2012 | CN102643232A Method for preparing caprolactam by beckmann rearrangement for cyclohexanone-oxime |
| 08/22/2012 | CN102060767B Method for producing caprolactam by methylbenzene |
| 08/22/2012 | CN101747248B Method for preparation of hexanolactam with 5-formoxyl methyl valerate |
| 08/15/2012 | CN102639507A Novel compound and method for producing amide compound using same |
| 08/08/2012 | CN102627286A Method for manufacturing zeolite and method for manufacturing epsilon-caprolatam |
| 08/08/2012 | CN102626645A Application of fluorgypsum in ketoxime Beckmann rearrangement |
| 08/01/2012 | EP2481728A1 Novel compound and method for producing amide compound using same |
| 08/01/2012 | CN202355992U Demisting device |
| 07/31/2012 | US8231765 Process for the purification of lactams |
| 07/25/2012 | CN102603633A Gasification system for preparing cyclohexanone oxime in caprolactam by Beckmann gas phase rearrangement |
| 07/25/2012 | CN102050464B Synthesizing method of silicon molecular sieve |
| 07/19/2012 | US20120184733 Catalyst composition and method for preparing amide using the same |
| 07/18/2012 | CN102584703A Extraction method for removing trace impurities from caprolactam water solution |
| 07/18/2012 | CN102584702A Catalyst composition and method for preparing amide using the same |
| 07/11/2012 | CN102557064A Method For Producing Zeolite And Method For Producing Epsilon-caprolactam |
| 07/10/2012 | US8217182 Process for producing cyclic N-hydroxy imide compounds |
| 07/04/2012 | CN202290053U 热敏性液体汽化设备 The heat-sensitive liquid vaporization device |
| 07/04/2012 | CN102527424A After-treatment technology of Beckmann gas-phase rearrangement S-1 full-silica molecular sieve based catalyst |
| 07/03/2012 | US8212028 Method for producing ε-caprolactam and method for producing pentasil type zeolite |
| 07/03/2012 | US8212027 Process for the conversion of cyclic amines into lactams |
| 06/27/2012 | CN102513004A Method for controlling cyclohexanone oxime solution preparation temperature |
| 06/07/2012 | US20120142886 Synthesis of Caprolactam From Lysine |
| 06/05/2012 | US8193348 System and method for recovering caprolactam from rearrangement mixtures |
| 05/30/2012 | CN101786010B Catalyst for preparing caprolactam by gas phase Beckmann rearrangement method and preparation method thereof |
| 05/30/2012 | CN101142179B Process for making caprolactam |
| 05/29/2012 | US8188269 Functionalized compositions for improved immobilization |
| 05/16/2012 | CN102452983A Purification method of Epsilon-caprolactam and preparation method of Epsilon-caprolactam |
| 05/16/2012 | CN102452982A Method for purifying epsilon-caprolactam and method for preparing epsilon-caprolactam |
| 05/16/2012 | CN101891681B Novel Beckmann rearrangement method for preparing caprolactam from cyclohexanone oxime |
| 05/09/2012 | CN101985435B Novel eutectic ionic liquid and preparation method thereof |
| 05/02/2012 | CN102432537A Hydroprocessing method for caprolactam |
| 05/02/2012 | CN102432536A Hydrofining method for caprolactam |
| 05/02/2012 | CN102432032A Nanometer all-silicon molecular sieve and its preparation method and use |
| 05/02/2012 | CN102430406A Hydrogenation catalyst and preparation method thereof |
| 05/02/2012 | CN102430320A Demisting device |
| 05/02/2012 | CN102001999B Process for directly synthesizing caprolactam from cyclohexanone and hydroxylamine |
| 04/24/2012 | US8163899 Process for producing laurolactam |
| 04/19/2012 | WO2012005473A3 Method for preparing ε-caprolactam by using high-silica nano-plate zeolite |
| 04/18/2012 | CN102421752A 合成内酰胺的方法 In the synthesis of amides |
| 04/11/2012 | CN102414174A 用于制备酰胺化合物的方法 A method for preparing an amide compound |
| 04/05/2012 | WO2012019674A3 High temperature lactam neutralisation |
| 04/04/2012 | CN102399188A 一种贝克曼重排反应新方法 A new method for reaction Beckmann rearrangement |
| 03/22/2012 | US20120071648 Method for producing lactamates by way of thin film evaporation |
| 03/21/2012 | CN202169172U 一种液体汽化设备 A liquid vaporization device |
| 03/21/2012 | CN102388019A Production of lactams and carboxylic acid amides by beckman rearrangement of oximes in the presence of nb catalysts |
| 03/21/2012 | CN102382052A Method for degrading and recovering epsilon-caprolactam of waste nylon 6 in ionic liquid/water mixed system |
| 03/21/2012 | CN101880386B Recovery method of hexanolactam in polyamide-6 continuous polymerization production process |
| 03/21/2012 | CN101712650B Method for synthesizing caprolactam in one step by liquid phase hydrogenation of nitrocyclohexane |
| 03/07/2012 | EP2424837A1 Method for preparing lactams |
| 02/16/2012 | WO2012019674A2 High temperature lactam neutralisation |
| 02/01/2012 | CN102336708A Method and device for producing caprolactam through rearrangement of cyclohexanone oxime |
| 02/01/2012 | CN102335573A Caprolactam causticization device |
| 01/25/2012 | CN101137608B Method for the production of cyclohexanone |
| 01/25/2012 | CN101070298B Method for purifying and refining epsi-caprolactam |
| 01/18/2012 | CN202113846U Liquid vaporization equipment with heat tracing jackets |
| 01/18/2012 | CN101851203B Method for continuously preparing hexanolactam by using cyclohexanone-oxime Beckmann rearrangement reaction |
| 01/18/2012 | CN101168523B Method for overturning syn-form 4-alkyl-N-tert-butoxycarbonyl pyroglutamic acid ester to anti-form product |
| 01/12/2012 | WO2012005473A2 Method for preparing ε-caprolactam by using high-silica nano-plate zeolite |
| 01/11/2012 | EP2404900A1 Method for producing amide compound |
| 01/11/2012 | EP1688393B1 High silica cds-1 zeolite |
| 01/11/2012 | CN102311386A Caprolactam suspension filtering and washing method |
| 01/05/2012 | WO2011111073A4 PROCESS FOR BIOGENESIS OF L-LYSINE FROM ε-CAPROLACTAM OR ε-CAPROLACTAM DEGRADATION OR RELATED INTERMEDIATES |
| 01/04/2012 | EP1636179B1 Method for making caprolactam from impure 6-amino-capronitrile containing tetrahydroazepine |
| 01/04/2012 | EP1628955B9 Continuous process for preparing caprolactam |
| 01/04/2012 | CN102302948A Benzenesulfonic acid catalyst supported on silica gel, as well as preparation and application thereof |
| 12/28/2011 | EP1246798B1 Process for the production of n-methyl pyrrolidone using gamma butyrolactone and mixed methylamines as starting materials |
| 12/28/2011 | EP1154995B1 A process for recovering caprolactam and steam |
| 12/14/2011 | CN202072647U 锦纶聚合流程管道结构 Nylon polymerization process piping structure |
| 12/01/2011 | WO2011149339A1 Preparation of caprolactone, caprolactam, 2,5-tetrahydrofuran-dimethanol, 1,6-hexanediol or 1,2,6-hexanetriol from 5-hydroxymethyl-2-furfuraldehyde |
| 12/01/2011 | CA2800797A1 Preparation of caprolactone, caprolactam, 2,5-tetrahydrofuran-dimethanol, 1,6-hexanediol or 1,2,6-hexanetriol from 5-hydroxymethyl-2-furfuraldehyde |
| 11/30/2011 | EP2390247A1 Preparation of caprolactone, caprolactam, 2,5-tetrahydrofuran dimethanol, 1,6-hexanediol or 1,2,6-hexanetriol from 5-hydroxymethyl-2-furfuraldehyde |
| 11/09/2011 | EP2004599B1 Process for the preparation of an n-alkyl lactam with improved colour quality |
| 11/09/2011 | CN102234248A Impurity extraction method for caprolactam production |
| 11/09/2011 | CN102233277A Preparation method for catalyst containing MFI structure zeolite |
| 11/03/2011 | WO2011111073A3 PROCESS FOR BIOGENESIS OF L-LYSINE FROM ε-CAPROLACTAM OR ε-CAPROLACTAM DEGRADATION OR RELATED INTERMEDIATES |
| 11/02/2011 | CN102229553A Multistage rearrangement system and method for preparation of caprolactam from cyclohexanone oxime |
| 10/26/2011 | CN102227403A Process for removing by-products from n-vinylamides |
| 10/20/2011 | US20110257358 Method for preparing e-caprolactam from n-acyl-6-aminocaproic acid |
| 10/12/2011 | CN102216266A Method for preparing e-caprolactam from n-acyl-6-aminocaproic acid |
| 10/12/2011 | CN102212033A Method for lowering caprolactam inclusion content in ammonium sulfate crystals |
| 10/12/2011 | CN102212025A Method for improving rectification yield of nitrated product |
| 10/05/2011 | EP2370403A1 Production of lactams and carboxylic acid amides by beckman rearrangement of oximes in the presence of nb catalysts |
| 10/05/2011 | EP2370397A1 Process for removing by-products from n-vinylamides |
| 10/05/2011 | CN101142178B Improved method for making caprolactam from impure 6-aminocapronitrile |
| 09/22/2011 | WO2011115132A1 Method for producing amide compound |
| 09/21/2011 | CN102188989A Fluidized bed catalyst and preparation method thereof |
| 09/20/2011 | US8022201 Process for preparing amides from ketoximes |