http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106349126-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-584 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C315-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C317-14 |
| filingDate | 2016-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-06-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2018-06-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-106349126-B |
| titleOfInvention | The method for preparing 4,4 '-dichloro diphenyl sulfone |
| abstract | The invention discloses a kind of methods for preparing 4,4 ' dichloro diphenyl sulfones.With 4,4 ' dichloro sulfoxides for raw material, using sulfuric acid as catalyst, using dichloropropane and glacial acetic acid as solvent, under 60 90 DEG C of reaction temperature, 4,4 ' dichloro diphenyl sulfones are prepared using hydrogen peroxide as oxidizing 4,4 ' dichloro sulfoxides.Wherein the concentration of hydrogen peroxide is 30% 50%.The dosage of catalyst sulfuric acid is 6% the 12% of 4,4 ' dichloro sulfoxide quality.The dosage of solvent dichloropropane is 80% the 120% of 4,4 ' dichloro sulfoxide quality, and the dosage of glacial acetic acid is 15% the 20% of 4,4 ' dichloro sulfoxide quality；90 120 minutes reaction time.The advantages of the method for the present invention has reaction condition mild, and reaction yield is high, high catalytic efficiency, catalyst system and catalyzing and reaction dissolvent recyclable recycling. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021037672-A1 |
| priorityDate | 2016-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 41.