http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104876805-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-60 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-74 |
| filingDate | 2015-06-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-07-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-07-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104876805-B |
| titleOfInvention | A kind of preparation technology of the 2,5-chlorophenesic acid for mass production |
| abstract | The present invention provides the preparation technology of a kind of 2,5-chlorophenesic acids for mass production, and it includes the continuous rectification recovery with substrate and solvent of the preparation of catalyst, Isosorbide-5-Nitrae-dichloro-benzenes one-step synthesis method target product and product 2,5-chlorophenesic acid.Catalyst of the present invention can significantly improve efficiency and the yield of synthetic reaction, reduces production cost, and heavy component reduces, and is beneficial to later separation purification work.The present invention is by carrying out rectification separating-purifying to synthesis product, obtain product 2, the purity of 5-chlorophenesic acid is more than 99.7%, reclaim the raw material 1 obtained, the purity of 4-dichloro-benzenes, solvent and water both is greater than 99%, the raw material, the solvent that reclaim can be directly used for next group synthetic reaction, reduce production cost, are beneficial to environmental protection. |
| priorityDate | 2015-06-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.