http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H02227494-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d6402b23ab8782152be47b3996e48a4a |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10C1-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10C1-08 |
| filingDate | 1989-02-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8b712de83501a7b7b8e7251405894dae http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_52f7469f42806078a0dac4681b78163c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_efa984c5b147912fbb2597fd1f7b06d7 |
| publicationDate | 1990-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H02227494-A |
| titleOfInvention | Purifying method of quinolines |
| abstract | PURPOSE: To readily remove coloring-causative substance and completely remove formaldehyde by treating quinolines recovered from coal tar with formaldehyde, washing with alkali solution and distilling. n CONSTITUTION: Quinolines such as guinoline, isoquinoline or quinaldine recovered from coal tar is treated with formaldehyde and washed with a solution of alkali metal hydroxide such as caustic soda or caustic potash and/or a solution of alkaline earth metal hydroxide such as magnesium hydroxide or calcium hydroxide, then distilled, thus purified. n COPYRIGHT: (C)1990,JPO&Japio |
| priorityDate | 1989-02-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 35.