http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104193671-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D209-86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D209-84 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D209-86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D209-84 |
| filingDate | 2014-08-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-12-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-12-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104193671-B |
| titleOfInvention | A kind of method of purification of coal tar naphtha carbazole |
| abstract | The method of purification of a kind of coal tar naphtha carbazole, it is therefore an objective to avoid using a large amount of organic solvent, reducing heating cooling recrystallization number of times；The inventive method extracts half essence carbazole after essence carbazole as raw material with the solid carbazole anthracene slag after extract by solvents anthracene or with extraction distillation solvent method, mix with lipophilic solvent, dissolving crystallized by lipophilic solvent, making the aromatic compounds such as oily components anthracene, phenanthrene is that liquid phase separates with carbazole；Removal carbazole heavy constituent methylphenanthrene, 9,10 dimethyl acridinium, methyl anthracene, methylphenanthrene derivant, methyl carbazole derivant, fluorene derivative is mixed again with hydrophilic solvent；Use again to mix with lipophilic hydrophilic solvent and remove methyl carbazole derivant, methyl anthracene and the derivant being clipped in carbazole, obtain purity 99 essence carbazoles. |
| priorityDate | 2014-08-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 56.