http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104725283-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C303-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-06 |
| filingDate | 2015-04-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-09-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-09-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104725283-B |
| titleOfInvention | A kind of preparation method of trifluoromethanesulfonic acid |
| abstract | The present invention relates to the preparation method of a kind of trifluoromethanesulfonic acid; with halo fluoroform as raw material, in the environment of nitrogen protection, add zinc powder and oxolane; add catalytic amount after being passed through trifluoro bromomethane gas and obtain iodine; temperature control reaction obtains trifluoromethyl zinc halide reagent, adds sulfur trioxide and continues reaction, generates halo trifluoromethayl sulfonic acid zinc; reactant liquor adds alkali liquor neutralize; it is evaporated filtrate, obtains solid trifluoromethanesulfonic acid sodium salt, then be acidified rectification and prepare trifluoromethanesulfonic acid.The trifluoromethanesulfonic acid preparation method of this invention, effectively reduces the generation of by-product in production processï¼›Avoid in traditional handicraft, in the trifluoromethanesulfonic acid product of generation, the situation that fluorion, chloride ion, sulfate ion are higherï¼›Additionally, utilize the trifluoromethanesulfonic acid high purity more than 99.95% that rectification purification obtains, and yield can reach 83%. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2020115197-A1 |
| priorityDate | 2015-04-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 49.