http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103641780-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D217-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D217-02 |
| filingDate | 2013-12-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-08-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-08-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103641780-B |
| titleOfInvention | A kind of method of purifying isoquinoline from coal tar crude product |
| abstract | The invention discloses a kind of method of purifying isoquinoline from coal tar.Described method is with coal tar as initiation material, wherein isoquinoline-containing about 15%, through simple pickling, alkali cleaning, the enriched distillation of thick isoquinolin obtained, obtain isoquinoline-containing 70 ~ 80%, fraction containing quinoline 10 ~ 20%, using the product of this fraction as the initiation material of the present invention, first raw material is become salt with the quantitative nitration mixture prepared, sucking filtration is carried out in dry conditions after becoming salt, it is dried, with the most mixed alkali prepared, salt is hydrolyzed the most again, layering, obtain the crude product containing more than 95% isoquinolin, the crude product after layering is carried out decompression distillation again, more than 98% colourless transparent liquid, yield more than 90%.The method of purification of the present invention consumes energy low compared with report document, and environmental pollution is few, is particularly suitable for industrialized production, and the three wastes of generation may be recovered utilization, processes simple. |
| priorityDate | 2013-12-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 41.