http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3883599-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bdab1eee3828b72a2ec1f63ad1738325 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C323-00 |
| filingDate | 1974-02-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1975-05-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4e0ef337ead147b566227068300a0b68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_70c61b9bcd80587cab8478c79609cc53 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0f4cda88d9d9363c0c86019e01f0c9a0 |
| publicationDate | 1975-05-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-3883599-A |
| titleOfInvention | Manufacture of thiophenols |
| abstract | A method of producing a thiophenol, which consists in dehydrogenating the corresponding cyclohexylmercaptan by means of SO2 in gaseous phase, in the presence of an inert gas, with a dehydrogenation catalyst, such as activated carbon, alumina or chromium oxide supported by alumina; the catalyst must have a specific area of at least 300 sq.m/g, particularly 300 to 2,000 sq.m/g, and preferably 800 to 1,500 sq.m/g. Temperature is in the range of 300* to 800*C and most advantageously 400* to 550*C. Best results are obtained with 5 to 20 mol percent of each of the reagents in the gaseous reaction mixture, and the amount of SO2 moles is preferably equal to that of cyclohexylmercaptan moles. In the case of phenylmercaptan, production yields as high as 64 percent may be obtained. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4288628-A |
| priorityDate | 1974-02-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.