http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109173422-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2201-085 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2221-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D36-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D36-02 |
| filingDate | 2018-10-09^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-03-09^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-03-09^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109173422-B |
| titleOfInvention | Batch complete filtering process for pre-crystallization procedure API liquid medicine in medicine production |
| abstract | The invention provides a batch complete filtration process of an API liquid medicine in a pre-crystallization process in medicine production, which comprises the steps of fine filtration of a rotary ceramic membrane filter, filtration of a cluster filter, treatment of filtrate of the cluster filter, batch complete filtration, solid impurity collection and CPI cleaning. The method comprises the steps of adopting a rotary ceramic membrane filtration concentration process as a precise filtration process, adopting a cluster membrane filtration technology as solid-liquid separation treatment of concentrated solution in a rotary ceramic membrane filter, returning filtrate of the cluster filter to the rotary ceramic membrane filter for circular filtration and continuous concentration, and finally utilizing gas back flushing in the cluster filter to recover impurities in the concentrated slurry in a solid form so as to realize complete treatment of batches. The whole process organically combines the two filters, so that the process is simple, efficient and stable, easy to backwash and regenerate and convenient to operate and maintain. |
| priorityDate | 2018-10-09^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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