http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110256356-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07B2200-13 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D233-80 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D233-80 |
| filingDate | 2019-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-04-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-04-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110256356-B |
| titleOfInvention | Method for crystallizing iprodione |
| abstract | The invention belongs to the technical field of pesticide synthesis, and particularly relates to a method for crystallizing iprodione. According to the method for crystallizing iprodione, provided by the invention, the organic solvent is removed from the organic phase dissolved with iprodione under negative pressure, along with the continuous removal of the organic solvent, the iprodione firstly precipitates out a solid, then the solid is refluxed and dissolved in a weak acid aqueous solution and residual organic solvent system, and then the weak acid aqueous solution and the residual organic solvent are removed, so that the problem of heterogeneous nucleation of the iprodione in the crystallization process is avoided, the coating amount of impurities in crystals is reduced, and the purity is improved; the crystal form is improved, the bulk density of the crystal is high, and the stability of the product is improved; the use of normal n-hexane is avoided, and the operation environment is improved. |
| priorityDate | 2019-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 40.