| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_af3a20f71c4822f308ceca7a87d2a951 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2603-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2603-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2603-24 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D209-84
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C46-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C13-567
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C15-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C7-005
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C7-05
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C7-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C7-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C7-05
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C7-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C7-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D209-84
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C13-567
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D209-86
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D209-82
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C46-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C50-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C15-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C15-28 |
| filingDate |
1997-03-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2000-02-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_04140cafb5f44272a6b9437da75c6650
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_14710df405af0a588dd0b4d7088a93ab
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_52870fbdfa7beca311f62d047fdd1b6e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a540608ff874e2ebf87fea7ec5f44f8e |
| publicationDate |
2000-02-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0799813-B1 |
| titleOfInvention |
Distillation process for the recovery of pure products from crude anthracene |
| abstract |
A two-stage distillation process for improving the production of pure product from crude anthracene, comprises (1) taking off a fraction with a boiling range of 280-320 degrees C at normal pressure as the column head product, adding carbazole residues to the bottom product and (2) separating this mixture into anthracene and carbazole fractions in a second column. Also claimed are the following pure products from crude anthracene work-up: (i) pure anthracene containing less than 60 ppm diphenylene oxide (DPO), (ii) fluorene containing not more than 5 wt% anthracene and (iii) a carbazole product containing at least 94 wt% carbazole. |
| priorityDate |
1996-04-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |