| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| 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/C07C201-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C201-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C205-05 |
| filingDate |
1976-04-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1977-10-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_57ddd2378a07918725e877f92d410cee
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_498aca5a30cd81c11175631b0fc6b1e7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fc6576121fac98396441684c607b0db1 |
| publicationDate |
1977-10-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4053526-A |
| titleOfInvention |
Process for isolating dinitronaphthalenes |
| abstract |
1,5- AND 1,8-DINITRONAPHTHALENES ARE ISOLATED FROM MIXTURES OF ISOMETRIC DINITRONAPHTHALENES AT LEAST CONTAINING THE SAME. The mixture of isomers is treated successively with a more polar solvent and a less polar aromatic solvent for dinitronaphthalenes thereby dissolving the mixture of isomers except for 1,5-dinitronaphthalenes which remains largely undissolved in the more polar solvent. The residual mixture of isomers is subsequently treated, after removal of the more polar solvent, with a less polar aromatic solvent at elevated temperatures in which 1,8-dinitronaphthalenes remains as a largely insoluble residue. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103497107-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6242656-B1 |
| priorityDate |
1975-04-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |