http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-100439315-C
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_696ca0ae93d5cf5a686273601361781f |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A23P20-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A23P30-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A23P10-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A23L7-196 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A23L17-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-265 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C63-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-265 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-255 |
| filingDate | 2005-02-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2008-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f1ac5388ba55b4024f4f670faa9497cc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5b37a4b6aa9a312abf97ebfbd4a7eb86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_661e66555e39147048e77c16e7b51e86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f50c6169aa82270c0915e7e7f64f40c8 |
| publicationDate | 2008-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-100439315-C |
| titleOfInvention | Process for producing 1,3-naphthalenedicarboxylic acid |
| abstract | 1,3-Naphthalenedicarboxylic acid is produced by oxidizing 1,3-dialkylnaphthalene in a liquid-phase with an oxygen-containing gas in the presence of a C<SUB>2</SUB>-C<SUB>6 </SUB>lower aliphatic carboxylic acid solvent and a catalyst comprising a heavy metal and a bromine compound. By regulating the ratio of the total number of bromine atoms fed into a reaction system to the total number of 1,3-dialkylnaphthalene molecules fed into the reaction system within a specific range, 1,3-naphthalenedicarboxylic acid is efficiently produced with low costs. Using 1,3-dimethylnaphthalene, as the starting 1,3-dialkylnaphthalene, which is produced by isomerizing dimethylnaphthalenes in a liquid phase in the presence of a catalyst comprising hydrogen fluoride and boron trifluoride together with a C<SUB>5</SUB>-C<SUB>10 </SUB>alicyclic saturated hydrocarbon having a five-membered or six-membered ring structure, a highly pure 1,3-naphthalenedicarboxylic acid is efficiently produced. |
| priorityDate | 2004-02-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 90.