http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106478400-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-41 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C65-05 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-02 |
| filingDate | 2015-09-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-10-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-10-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-106478400-B |
| titleOfInvention | A kind of method of the continuous Carboxylation salicylate of high pressure |
| abstract | The invention discloses a kind of methods of the continuous Carboxylation salicylate of high pressure, it is the 2 of 25%-45% with mass fraction, 5- chlorophenesic acid xylene solution, potassium hydroxide solution are raw material, and reaction synthesizes 2,5- chlorophenesic acid potassium under reflux conditions in solvent xylene；Xylene solution, potassium carbonate, the alcohols catalyst for containing 2,5- chlorophenesic acid potassium are sent into autoclave or loop reactor after mixer mixes, and are passed through CO into autoclave or loop reactor 2 , 2,5- chlorophenesic acid potassium, Anhydrous potassium carbonate and CO 2 , 3-10h is reacted in the presence of alcohols catalyst and generates 3,6- dichlorosalicylic acid potassium, controls CO 2 Pressure is 5.5-10MPa, and reaction temperature is 135-160 DEG C；It discharges while feeding after reaction, lance pipe pressure release continuous discharge is utilized when discharging, Synthesis liquid obtains target product salicylic acid through persalt acidification centrifugation；The method of the present invention realizes the purpose of continuous production by improving catalyst, reaction mass feed ratio and discharge method, improves the production efficiency of consersion unit. |
| priorityDate | 2015-09-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 47.