| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e899199238cd97bdebfa84869ece733b |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-38 |
| classificationIPCInventive |
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/C07C67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C19-045 |
| filingDate |
1969-02-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1972-01-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d7ebb932b20ca1c2340c37f60ddfa1e4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9412a5226491c7a6185cb49e47b2b197
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_939e97f559dd1ec6beca2527256b07d1 |
| publicationDate |
1972-01-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-3634200-A |
| titleOfInvention |
Ethylene dichloride purification by plural stage distillation |
| abstract |
A purification separation of the residual ethylene dichloride from the higher boiling chlorinated materials found in the bottoms fraction of a heavy ends column in a vinyl chloride monomer plant is carried out by passing the bottoms fraction to a vaporization zone maintained at about 112* C. The ethylene dichloride rich overhead from the vaporization zone is then passed to a fractionation column maintained between about 87* and about 117* C. The overhead from the fractionation column contains ethylene dichloride essentially free of higher boiling chlorinated materials and tars. This ethylene dichloride purified of ''''tars and carbon'''' and containing principally only 1,1,2trichloroethane impurity, can be returned to the conventional VCM process distillation purification system which then separates this stream to yield high-quality ethylene dichloride for use as feed to an ethylene dichloride pyrolysis unit or for production of saleable ethylene dichloride product of high commercial quality. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6649028-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6336997-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102432426-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102432426-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111848335-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4357213-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111848335-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2010019710-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5500097-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4747914-A |
| priorityDate |
1969-02-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |