http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8163964-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7134e80f0c2b05b40f88c34217bf9984 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6aa9a861e9d499ea625a799ef0fed5d9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1e70c0aeade92d7571d955d3b90ea06e |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-582 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-206 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-25 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C21-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-354 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-00 |
| filingDate | 2007-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2012-04-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bb04c13d9d994898c4f8efb815b5b475 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7cf4b5be7561d612efb5c1460c1aae5e |
| publicationDate | 2012-04-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-8163964-B2 |
| titleOfInvention | Processes for producing pentafluoropropenes and certain azeotropes comprising HF and certain halopropenes of the formula C3 HClF4 |
| abstract | A process is disclosed for making CF 3 CF═CHF or a mixture thereof with CF 2 ═CFCHF 2 . The process involves (i) contacting CH 2 ClCF 2 CF 3 , and optionally CH 2 FCF 2 CClF 2 , in a reaction zone in the presence of a catalytically effective amount of dehydrofluorination catalyst to produce CHCl═CFCF 3 , and, if CH 2 FCF 2 CClF 2 is present, CHF═CFCClF 2 ; (ii) contacting CHCl═CFCF 3 , and CHF═CFCClF 2 , if any, formed in (i) with hydrogen fluoride (HF) in a reaction zone, optionally in the presence of a fluorination catalyst, to produce a product mixture comprising CHF═CFCF 3 , and, if CHF═CFCClF 2 is present, CF 2 ═CFCHF 2 ; and (iii) recovering CF 3 CF═CHF, or a mixture thereof with CF 2 ═CFCHF 2 , from the product mixture formed in (ii); and optionally (iv) separating at least a portion of any CF 3 CF═CHF in the product mixture formed in (ii) from the CF 2 ═CFCHF 2 in the product mixture formed in (ii). Also disclosed is an azeotropic composition involving CHCl═CFCF 3 , CHF═CFCClF 2 and HF. |
| priorityDate | 2006-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 64.