http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108069844-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-79 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G75-0281 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-79 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G75-0281 |
| filingDate | 2016-11-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108069844-B |
| titleOfInvention | Method for refining acetone solvent used in polyphenylene sulfide production and application thereof |
| abstract | The invention discloses a refining method of an acetone solvent used in the preparation of polyphenylene sulfide and application thereof, wherein the refining method comprises the following steps: (1) adsorbing the acetone solvent to be treated by adopting acidic ion exchange resin to obtain a pretreated acetone solvent; (2) and (2) performing alkalization treatment on the pretreated acetone solvent obtained in the step (1) to obtain a refined acetone solvent. The acetone solvent obtained by the refining method is alkalescent, and simultaneously has low methylamine content, so that the yarn breaking phenomenon in the spinning process is reduced when the acetone solvent is used for the washing process of polyphenylene sulfide. |
| priorityDate | 2016-11-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 41.