http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6077819-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1e70c0aeade92d7571d955d3b90ea06e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C11D7-5018 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C11D7-50 |
| filingDate | 1993-11-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2000-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_65a95849b20c4a4f91347c08b5a2b82a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d281de811c13322a6a031219fdd4177e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bf9e4cc51cd771f3a86b4e4548e6dc4f |
| publicationDate | 2000-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-6077819-A |
| titleOfInvention | Azeotropes of chlorofluoroethanes of the formula CF3 CC12+x ub. F.s1-x with HF and manufacturing processes therewith |
| abstract | A process is disclosed for recovering HF from a product mixture comprising HF and at least one compound having the formula CF 3 CCl 2+x F 1-x (where x is 0 or 1). The process includes the steps of distilling the product mixture to remove all products which have a lower boiling point than the lowest boiling azeotrope containing HF and said at least one compound; and distilling said azeotrope to recover HF as an azeotropic composition containing HF and said at least one compound. Also disclosed are azeotrope and azeotrope-like compositions which consist essentially of hydrogen fluoride in combination with from about 10 to 27 mole percent CCl 3 CF 3 or from about 35 to 56 mole percent CCl 2 FCF 3 . |
| priorityDate | 1993-11-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 55.