http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1160025-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1374dd16777534b65ad4422333245af8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D201-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-835 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-628 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-14 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-835 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D201-02 |
| filingDate | 1967-02-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1969-07-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1160025-A |
| titleOfInvention | Process for the preparation of Lactams |
| abstract | 1,160,025. #-Caprolactam and #-laurolactam. TEIJIN Ltd. 17 Feb., 1967 [19 Feb., 1966; 28 June, 1966], No. 7746/67. Heading C2C. #-Caprolactam or #-laurolactam is prepared by contacting in the vapour phase nitrocyclohexane or nitrocyclododecane with a catalyst containing metallic lead or a lead oxide at a temperature of from 180-450‹ C. The lead or lead oxide catalyst may be used supported on a carrier or in admixture with a carrier. Such catalysts may be obtained by impregnating or precipitating an aqueous solution or suspension of an inorganic or organic acid salt of lead in or with a carrier which is a solid acid, an oxide of a metal except lead belonging to Groups I B -I V of the Periodic Table or a metal belonging to Groups VI-VIII of the Periodic Table, a double salt thereof or a complex salt thereof, drying and then heating the impregnated or precipitated product to a temperature of from 200-1300‹ C. Suitable solid acids are acid clay, acid-treated acid clay, fuller's earth, bentonite, silica, alumina, and silica-alumina. The reaction may be carried out in the presence of a non-oxidizing gas such as nitrogen, carbon dioxide, helium or argon or a reducing gas such as hydrogen or carbon monoxide, these gases acting as carrier gases for the nitrocyclohexane or nitrocyclododecane. |
| priorityDate | 1966-02-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.