| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_696ca0ae93d5cf5a686273601361781f |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-487
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-47
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C63-38 |
| filingDate |
1996-02-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_97586f51e80afffdae9e570750c341c7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4c8373d54b63e8dcd09b88972f3eebc3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_497ddf86ea2b3170246c65fe998f65de
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f4286aef48fa0aa85e5a1e57a9cb05e3 |
| publicationDate |
1997-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-H09208518-A |
| titleOfInvention |
Method for producing high-purity naphthalene dicarboxylic acid |
| abstract |
(57) [Abstract] [Purpose] A method for producing a high-purity naphthalenedicarboxylic acid with improved hue from a crude naphthalenedicarboxylic acid obtained by an oxidation reaction of a dialkylnaphthalene at a high recovery rate and industrially advantageously. provide. SOLUTION: A crude naphthalenedicarboxylic acid obtained by an oxidation reaction of dialkylnaphthalene is dissolved in an aqueous solution containing aliphatic amines, and heavy metal components contained as impurities in naphthalenedicarboxylic acid are removed to 100 ppm or less. The amines are distilled off by heating the obtained aqueous solution to obtain naphthalenedicarboxylic acid. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3505507-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8993799-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2002193870-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2007169237-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-WO2017038968-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108026011-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-4654515-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2017038968-A1 |
| priorityDate |
1996-02-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |