http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S62212340-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_28a869d6fc950d50f6df03f549ca3afa |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-265 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-313 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-265 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-31 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C63-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-21 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C63-307 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 |
| filingDate | 1986-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_07c3670278823ecbcc1010c1dfbfc44a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c1b7087d87faf0ee47782f5be05146fa http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_46495f9552209c6945dbbfc8ddd172eb |
| publicationDate | 1987-09-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S62212340-A |
| titleOfInvention | Simultaneous production of 2,6-naphthalene-dicarboxylic acid and trimellitic acid |
| abstract | PURPOSE: To obtain the titled compound in high purity, suppressing the production of nucleus-brominated material, by oxidizing 2,6-diisopropylnaphthalene in a lower aliphatic monocarboxylic acid solvent having a water-content falling within a specific range in the presence of a catalyst containing Co, Mn and extremely small amount of bromine. n CONSTITUTION: 2,6-Diisopropylnaphthalene is oxidized with molecular oxygen in a lower aliphatic monocarboxylic acid (preferably acetic acid) having a water-content of ≤30wt%, especially ≤15wt% in the presence of a catalyst containing Co and/or Mn and Br and the reaction mixture is cooled to separate the titled compound as a solid. The atomic ratio of Br to the heavy metal component in the catalyst is ≥0.0001 and <0.01, preferably 0.0005W0.008. The separated mixture is added to an aqueous solution of a mineral acid to decrease the pH to ≤3 and the precipitated isoluble 2,6-naphthalenedicarboxylic acid is separated by filtration. The filtrate is concentrated while keeping the pH at ≤3 and cooled to crystallize trimellitic acid, which is separated from the liquid by filtration. The filtrate is added with an alkali metal (bi)carbonate and the heavy metal is recovered as a (basic) carbonate. n COPYRIGHT: (C)1987,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H01121237-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H02164847-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H01186839-A |
| priorityDate | 1986-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 47.