http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113912515-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fd13fb0b9a4a3fd4bf397212b508219c |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C253-34 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C255-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-34 |
| filingDate | 2020-07-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8a047da34f2711544cf8ae82c886fb0d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cefa95c6bda413cbe53f784de21166d1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7e6d8edfb0d141760d285a37695fbdb5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_00c2a5572acb38f046547a018764fe37 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_524455a9015fd6f270c18f53c05ca0ce http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d2fe29aeec7cbe9d7408b36255c5d8ce |
| publicationDate | 2022-01-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113912515-A |
| titleOfInvention | Refining method of sartanbiphenyl |
| abstract | The invention belongs to the technical field of chemical pharmacy, and particularly relates to a refining method of sartanbiphenyl. The method comprises the following steps: (1) adding the sartanbiphenyl crude product into a mixed solvent for dissolving, adding activated carbon for adsorption and decoloration after the sartanbiphenyl crude product is dissolved clearly, and filtering to obtain a filtrate for later use; (2) cooling the obtained filtrate to a crystallization temperature, carrying out heat preservation crystallization, filtering after crystallization is finished, and leaching a filter cake to respectively obtain mother liquor and a sartanbiphenyl wet product; (3) drying the sartanbiphenyl wet product to obtain a sartanbiphenyl product; (4) and (3) distilling the mother liquor to obtain a recovered solvent which is a mixed solvent, and directly applying the mixed solvent to the step (1) after detection. Has the advantages that: the refining method aims at refining the sartanbiphenyl crude product with the content of less than 85 percent, and the sartanbiphenyl crude product does not need to be rectified again after being synthesized, so that the process control requirement of the synthesis step and the requirement on production equipment can be effectively reduced, the production energy consumption cost is greatly reduced, and the production efficiency is improved. |
| priorityDate | 2020-07-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 41.