http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113979848-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2601-16 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-82 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-21 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-82 |
| filingDate | 2021-10-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113979848-B |
| titleOfInvention | A kind of method that makes β-ionone reduce polymerization in still during rectification process |
| abstract | The invention relates to a method for reducing β-ionone to polymerize in a rectification still, which is characterized in that it comprises adding a powdered antioxidant to the crude β-ionone to be rectified, and carrying out the process in a rectification still Rectification, vacuumize, make the crude β-ionone to be rectified keep boiling during the heating process, and the antioxidant powder does not sink to the bottom of the kettle. Compared with the prior art, the present invention constructs an environment in which β-ionone is reduced to be oxidized and polymerized during the rectification process, greatly improving the rectification yield of β-ionone, and the β-ionone produced by rectification The yield of the ketone reaches more than 78 percent, and the purity reaches more than 94 percent, which meets the requirement of being a raw material for preparing vitamin A. |
| priorityDate | 2021-10-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 37.