http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005245775-A1
Outgoing Links
Predicate | Object |
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assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3ea61d2904c64039999e221fb5fa6f09 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c2f2afe7d9b673b5ab9e466a21ab6b18 |
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/C07B35-08 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 |
filingDate | 2004-04-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4ac90b8bc13b16377968be6871771360 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a1b1b09229231a1359bc35bef0e8dd4b |
publicationDate | 2005-11-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber | US-2005245775-A1 |
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 are charged to a reaction 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 reaction distillation column 30. |
isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2016510816-A |
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: 373.