http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105801378-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-15 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-66 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-15 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C65-05 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-44 |
| filingDate | 2016-04-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-04-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2018-04-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105801378-B |
| titleOfInvention | A kind of preparation method of 3,6 dichlorosalicylic acid |
| abstract | The present invention relates to a kind of preparation method of 3,6 dichlorosalicylic acids, belong to the intermediate technical field of synthetic herbicide Mediben.The present invention solves water content present in existing preparation method and requires high, carboxylation reaction time length, and product yield and selectivity are low, carbonic acid potassium application rate is big, produces the problem of tar is more, there is provided one kind 3, the preparation method of 6 dichlorosalicylic acids, this method uses specific process and technological parameter, coordinates specific co-catalyst, and reaction system moisture is required to reduce, as long as reach below 2000ppm, below 50ppm need not be dropped to, band shipwreck degree is reduced, saves the time.Technical process simplifies, and reduces the reaction time, improves product yield and selectivity, reduces production cost. |
| priorityDate | 2016-04-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 56.