http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021102875-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_aed2f9ba4c8c20a9b1fd9294a5111b78 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-84 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C211-52 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-84 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-52 |
| filingDate | 2019-11-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a145d066a1e0fa974ea938ddbf34bd9f |
| publicationDate | 2021-06-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2021102875-A1 |
| titleOfInvention | Method for removing n-nitroso compound from pendimethalin |
| abstract | Disclosed is a method for removing an N-nitroso compound from pendimethalin. The method comprises: adding hydrochloric acid, ammonium chloride and an auxiliary catalyst into a dichloroethane solution of N-nitroso compound-containing pendimethalin after completing a nitration reaction; heating the reaction, stopping the reaction when the content of the N-nitroso compound in the reaction system is detected to be less than 0.05%; and then obtaining a pendimethalin product after post-treating. In the method, ammonium chloride is used as an additive for removing nitroso, no organic impurity is introduced, and no salt-containing wastewater is produced. |
| priorityDate | 2019-11-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 53.