http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113860943-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01D5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C05B7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C303-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B25-30 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C303-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01D5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B25-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C05G1-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-06 |
| filingDate | 2021-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-11-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-11-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113860943-B |
| titleOfInvention | A kind of comprehensive processing method for the still residue in the preparation of trifluoromethanesulfonic acid |
| abstract | The invention relates to a comprehensive treatment method for still residues in the preparation of trifluoromethanesulfonic acid, which belongs to the technical field of chemical industry. The method uses the still residue produced in the preparation of trifluoromethanesulfonic acid as a raw material, firstly adds phosphorus pentoxide to the reaction kettle for reaction, and then recovers by vacuum distillation to obtain the product trifluoromethanesulfonic anhydride, and then adds a certain amount of trifluoromethanesulfonic anhydride after cooling down Potassium hydroxide, potassium carbonate or potassium bicarbonate for neutralization, through the control of the reaction end point, centrifugal separation and drying, to obtain the mixed fertilizer of potassium phosphate and potassium sulfate. The method is simple to operate, can make full use of the still residue to produce high value-added products, and can bring certain economic benefits while solving environmental problems. |
| priorityDate | 2021-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.