http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108727579-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-205 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-307 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-20 |
| filingDate | 2018-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108727579-B |
| titleOfInvention | Device and method for preparing aromatic polycarbonate |
| abstract | The present invention provides an apparatus and a method for preparing an aromatic polycarbonate, comprising: a raw material batching tank; the transesterification reactor is connected with the raw material batching tank; a prepolymerization reactor connected with the transesterification reactor; and the polycondensation reactor is connected with the prepolymerization reactor and is characterized in that the raw material batching tank is provided with an air suction opening. The transesterification catalyst is added in the batching procedure, and meanwhile, the temperature of the raw material batching tank is maintained at 135-155 ℃, so that the transesterification pre-reaction at low temperature can be realized in the batching procedure, and the generated phenol is discharged through the exhaust port to promote the continuous reaction, thereby reducing the reaction residence time in the transesterification procedure and shortening the production period of the device. |
| priorityDate | 2018-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.