http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111057226-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-85 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-183 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-85 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-183 |
| filingDate | 2019-12-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-05-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-05-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111057226-B |
| titleOfInvention | Nano-load titanium composite catalyst, preparation method thereof and application thereof in polyester synthesis |
| abstract | The invention discloses a preparation method of a nano-loaded titanium composite catalyst, which comprises the steps of dissolving a titanium compound, tetraethoxysilane and a hydrolytic agent in absolute ethyl alcohol, and stirring and reacting for a certain time at room temperature to obtain a mixed solution; adding one or more metal salts selected from chlorides, acetates or phosphates of Mg, Al, Mn, Co and Zn into the mixed solution, continuously stirring, and heating to volatilize excessive solvent to obtain gel; and carrying out supercritical drying on the gel in the presence of a supercritical medium to obtain the final nano-loaded titanium composite catalyst. The catalyst prepared by the invention has strong hydrolytic resistance, can be stored for a long time and has stable activity; the catalyst has high catalytic activity and good stability, can effectively improve the esterification and polycondensation reaction efficiency, has stable performance in the reaction process, and has stable product index; the catalyst does not contain heavy metal, so that the harm to the environment and human is reduced; the polyester prepared by the catalyst has good hue, small yellow index and stable performance. |
| priorityDate | 2019-12-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 57.