http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114031479-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_526a9b4c5091dc78e1244c54cb0e65e9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5735f03b779ee70fa9c1e267a0169889 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C17-281 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-0238 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J35-0006 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-0244 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-0239 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-0267 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-0217 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C21-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C17-281 |
| filingDate | 2021-11-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_db1e0c48b669c0fea26f3fa6414aaebc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6e0ac35fc77bbbe5f895dffe8645a7e1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9ffe526afeb6134ab0a051f1a9bff8f9 |
| publicationDate | 2022-02-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-114031479-A |
| titleOfInvention | Preparation method of hexafluoropropylene dimer D1 |
| abstract | The invention discloses a preparation method of hexafluoropropylene dimer D1, which comprises the steps of adding a catalyst and a solvent into a reaction vessel, sealing, heating under slow stirring, introducing hexafluoropropylene for reaction, analyzing the yield of hexafluoropropylene dimer D1 product by gas chromatography after the reaction is finished, wherein the catalyst is a composite catalyst and comprises a boundary base, a soft base and a phase transfer catalyst serving as a cocatalyst, and the solvent is a composite solvent and comprises two or more aprotic solvents with smaller polarity. The invention adopts the compounding of 'soft alkali' and 'boundary alkali', a catalytic system which is composed of a phase transfer catalyst as a cocatalyst, and adopts an aprotic composite solvent with smaller polarity to prepare hexafluoropropylene dimer D1 which is more than or equal to 99 percent and D2 which is less than or equal to 1 percent, and no hexafluoropropylene trimer is generated. The catalyst has the advantages of cheap and easily-obtained raw materials, simple preparation process, safe operation and low cost, is a sustainable development synthesis technology with wide application prospect, and is suitable for large-scale production. |
| priorityDate | 2021-11-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 69.