http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112851502-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-54 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-03 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-82 |
| filingDate | 2021-02-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112851502-B |
| titleOfInvention | A kind of choline and terephthalic acid non-metallic ionic liquid catalyze the method of methanolysis of waste PET polyester |
| abstract | The invention relates to a method for catalyzing methanolysis of waste PET polyester with choline and terephthalic acid non-metallic ionic liquid, which is characterized in that waste PET polyester (including PET bottles, PET packaging sheets, PET fibers and PET Textiles) as raw material, methanol as solvent, choline and terephthalic acid non-metallic ionic liquid as catalyst, catalyst consumption is 0.5% to 10% of PET quality, reaction temperature is 130 to 200°C, reaction time is 30-360min, under the condition that the mass ratio of methanol to PET is 1:1-10:1, the alcoholysis of PET is catalyzed. The method has the characteristics that the catalyst does not contain metal, is green and environmentally friendly, can reduce the demetallization unit operation of subsequent products, and improves the quality of degraded products, and has low requirements for raw materials, and the alcoholysis product is easy to separate and purify. |
| priorityDate | 2021-02-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 37.