http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109553556-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C315-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C317-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C315-06 |
| filingDate | 2018-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-08-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-08-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109553556-B |
| titleOfInvention | Novel preparation method for preparing florfenicol crystal |
| abstract | The invention discloses a novel preparation method for preparing florfenicol crystals, which comprises the steps of adding tetrahydrofuran serving as a solvent into a reaction kettle, dissolving florfenicol raw powder into tetrahydrofuran to prepare a tetrahydrofuran solution with the concentration of 30mg/ml-80mg/ml, preparing an anti-solvent aqueous solution in another reaction kettle and the like. The method for obtaining the florfenicol superfine powder by adopting the anti-solvent recrystallization method has two advantages, namely that the aqueous solution containing sodium hyaluronate/ethanol is adopted, so that the florfenicol superfine powder has a particularly excellent superfine effect, and the impinging jet flow outlet is adopted, so that the collision among liquid drops is strengthened, the liquid drops are favorably crushed, and the superfine effect is favorably realized. |
| priorityDate | 2018-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.