http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0352829-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5e121a9cdf8ce8151e7af0d3b5faee7f |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-206 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C19-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C19-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C19-12 |
| filingDate | 1990-03-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_36ba9f7826fe17f30cb438a69011d3fe http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_751e6dc9edbcb9f8cb184e7ad4ebbe5c |
| publicationDate | 1991-03-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H0352829-A |
| titleOfInvention | Preparation of 1,1-dichloro-1-fluoroethane and/or 1-chloro-1,1-difluoroethane |
| abstract | PURPOSE: To obtain 1-chloro-1,1-difluoroethane by treating 1,1,1-trichloroethane with HF to obtain a 1,1-dichloro-1-fluoroethane-containing stream, splitting this stream into 2 streams and treating one of the streams with HF. n CONSTITUTION: 1,1,1-trichloroethane (140a) and HF are introduced into a reaction apparatus 10 and reacted to obtain a product stream containing 1,1-dichloro-1- fluoroethane (141b), unreacted HF and 140a. This stream is supplied to a flash drum 14 and HCl is removed and then, the stream is split into two streams and one of the streams is sent to a 141b recovery system through a pipe 20 while the other is sent to a second reaction apparatus 22 to form 1-chloro-1,1- difluoroethane (142b). In the 141b recovery system, an HF rich upper phase (to be recycled as an HF source and a 141b rich lower phase are separated by a phase separator 26 to obtain 141b. In the 142b recovery system, the stream is passed through an HCl stripper column 18, then combined with a column top effluent from a right-end column 30 and sent to a phase separator 42 to obtain 142b. n COPYRIGHT: (C)1991,JPO |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2008041967-A |
| priorityDate | 1989-07-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 23.