http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106995362-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-206 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C23-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-20 |
| filingDate | 2017-05-16^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-02-18^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-02-18^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-106995362-B |
| titleOfInvention | Preparation method of heptafluorocyclopentene |
| abstract | The invention discloses a preparation method of 1,3,3,4,4,5, 5-heptafluorocyclopentene, which comprises the following steps: a. in the presence of a hydrogenation catalyst, carrying out gas-phase catalytic hydrogenation reaction on 1, 2-dichlorohexafluorocyclopentene and hydrogen to obtain 1-chloro-3, 3,4,4,5, 5-hexafluorocyclopentene; b. in the presence of a fluorination catalyst, 1-chloro-3, 3,4,4,5, 5-hexafluorocyclopentene and anhydrous hydrogen fluoride are subjected to gas-phase catalytic fluorine-chlorine exchange reaction to obtain a product 1,3,3,4,4,5, 5-heptafluorocyclopentene. The raw material 1, 2-dichloro-hexachlorocyclopentene is easy to obtain and low in price; the invention can realize zero-pollution production of 1,3,3,4,4,5, 5-heptafluorocyclopentene, and the first-step reaction and the second-step reaction can completely react materials through a circulating system, thereby realizing full utilization of the materials, greatly reducing pollution and realizing zero pollution of production. |
| priorityDate | 2017-05-16^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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