http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7268262-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b637f9f45afd69585579aa44456b785c |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-395 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-383 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-38 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-395 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-386 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-383 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-358 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C21-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B35-08 |
| filingDate | 2004-04-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2007-09-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_228bc143da90248fbe960102426cb280 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7054183c67352cd2d64c6be24e719e80 |
| publicationDate | 2007-09-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-7268262-B2 |
| titleOfInvention | Method for recovering trans-1,2-dichloroethene |
| abstract | Describes a method for recovering trans-1,2-dichloroethene from a liquid feed composition comprising both the cis-and trans-isomers of 1,2-dichloroethene and contaminating amounts of other chlorinated hydrocarbons, e.g., lower alkyl chlorinated hydrocarbons, such as C 1- C 2 chlorinated hydrocarbons. In one of the described methods, the liquid feed composition is introduced into a first distillation column 10 wherein the stereoisomers and chlorinated hydrocarbons more volatile than the stereoisomers are removed as overhead 12 and charged to a second distillation column 20 . In column 20 , the stereoisomers are separated from the more volatile chlorinated hydrocarbons, and a bottoms fraction 24 comprising the stereoisomers is charged to a reactive distillation column 30 wherein the cis-isomer is isomerized to the trans-isomer in the liquid phase and in the presence of an organic free-radical initiator, e.g., an azonitrile initiator. Substantially pure trans 1,2-dichloroethene is recovered as overhead 32 from reactive distillation column 30. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2014275644-A1 |
| priorityDate | 2004-04-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 376.