http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105601471-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-386 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C23-08 |
| filingDate | 2015-10-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105601471-B |
| titleOfInvention | The method of purification of 3,3,4,4,5,5 hexafluoro cyclopentene |
| abstract | The present invention relates to " methods of purification of 3,3,4,4,5,5 hexafluoro cyclopentene ", belong to the field of chemical synthesis.3,3,4, the method of purification of 4,5,5 hexafluoro cyclopentene, contain 1 chlorine 3,3,4 in its material, 4,5,5 hexafluoro cyclopentene impurity, this method is extraction fractional distillation, and the extractant is chlorobenzene or 1, the mixture of liquid acetic acid ester of the 2 dichloro hexafluoro cyclopentene with boiling point higher than 100 DEG C, the mass ratio of the chlorobenzene or 1,2 dichloro hexafluoro cyclopentene and acetic acid esters is 4:1~1:2, the mass ratio of extractant and material is 1~20:1.The application uses the content of the hexafluoro cyclopentene of 1 chlorine 3,3,4,4,5,5 in special mixed extractant, the product through extracting rectifying to be after purification less than 0.10%, and extractant residual is less than 50ppm, and 3,3,4,4,5,5 hexafluoro cyclopentene products meet real requirement. |
| priorityDate | 2015-10-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 35.