http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112142779-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-523 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-523 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-12 |
| filingDate | 2020-10-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2023-01-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2023-01-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112142779-B |
| titleOfInvention | A kind of rapid preparation method of bisphenol A bis(diaryl phosphate) |
| abstract | The application discloses a rapid preparation method of bisphenol A bis(diaryl phosphate), which preparation method comprises the following steps: (1) reactant containing bisphenol A and phosphorus oxychloride under the action of Lewis acid catalyst reaction to obtain the mixture; (2) remove excess phosphorus oxychloride in the mixture to obtain the intermediate chlorinated phosphoric acid ester; (3) react the intermediate chlorinated phosphoric acid ester with monohydric phenol to obtain the bisphenol A bis(phosphoric acid diaryl ester); in steps (1) and (3), hydrogen chloride gas is passed into at least one of the steps. The preparation method greatly increases the generation speed of intermediates and final products by adding hydrogen chloride. The preparation method is simple and fast and can largely avoid the degradation of bisphenol A. |
| priorityDate | 2020-10-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 54.