http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4307021-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_16890954fa97fa1ea88523e23b283152 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2603-24 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C201-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C201-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C205-47 |
| filingDate | 1979-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1981-12-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fbd5ca70f441d28732dc93bd90599261 |
| publicationDate | 1981-12-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4307021-A |
| titleOfInvention | Process for obtaining 1,5-dinitro-anthraquinone of high purity |
| abstract | The invention relates to a process for obtaining 1,5-dinitro-anthraquinone of high purity from crude mixtures of dinitro-anthraquinones. Said mixture is treated at a temperature ranging from 150 DEG C. to 200 DEG C. with an ester having a boiling point greater than 150 DEG C. derived from an aliphatic alcohol containing 1 to 4 carbon atoms and a mono- or di-carboxylic acid or phosphoric acid, and then, after possible cooling without the temperature falling below 150 DEG C., separating the insoluble material consisting essentially of 1,5-dinitro-anthraquinone. |
| priorityDate | 1978-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 86.