http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-940014275-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C19-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C19-08 |
| filingDate | 1992-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1994-07-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-940014275-A |
| titleOfInvention | Combined method of 1,1-dichloro-1-fluoroethane and 1-chloro-1,1-difluoroethane |
| abstract | The present invention is based on 1,1,1-trichloroethane and hydrofluoric anhydride in the presence of a contaminated antimony catalyst, 1,1-dichloro-1- fluoroethane (HCFC-141b) and 1-chloro-1,1- The present invention relates to a combined method of HCFC-141b and HCFC-142b which can selectively produce a production rate of difluoroethane (HCFC-142b) in the range of 40/60 to 10/90 wt%.n n n In other words, by selectively adjusting the molar ratio of hydrofluoric acid / 1,1,1-trichloroethane, reaction pressure, reaction temperature, concentration of antimony contaminated catalyst, the conversion rate of hydrofluoric anhydride can be maximized and HFC-143a can be produced. It is an industrially useful invention that can minimize and generate an HCFC-141b / HCFC-142b ratio in the range of 40/60 to 10/90. |
| priorityDate | 1992-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 27.