http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104402927-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-26 |
| filingDate | 2014-12-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2015-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104402927-B |
| titleOfInvention | A kind of take 4 chloro pyridine as the method for raw material one pot process Chlorpyrifos 94 and the composite catalyst of use |
| abstract | The invention belongs to chemical industry synthesis field, providing a kind of take 2,3,5,6-TCP and O, O-o,o-diethylthiophosphoryl chloride as the novel method of main raw material one pot process Chlorpyrifos 94, composite catalyst used in building-up process and using method thereof.This kind of catalyzer comprises composite catalyst A and composite catalyst B, first 4 chloro pyridine and sodium hydroxide are under composite catalyst A effect, normal pressure Basic fluxing raction 8 ~ 15h at 70 DEG C ~ 100 DEG C, cooling adds composite catalyst B and O, O'-o,o-diethylthiophosphoryl chloride, continue condensation reaction 1 ~ 2h occurs at 45 DEG C ~ 65 DEG C, after reaction, namely obtain Chlorpyrifos 94 crude oil finished product through a series of purification step while hot.The present invention uses cheap 4 chloro pyridine for raw material, in a reactor, directly synthesize Chlorpyrifos 94 under normal pressure, reduces and produces and equipment cost, simplify the operation step, reduce operational danger, and product purity and yield are all high, are suitable for large-scale industrial production. |
| priorityDate | 2014-12-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 56.