http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H06271501-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0e7b522b71fd001f1a633fd8563b2a3e |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C63-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C63-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 |
| filingDate | 1993-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1a1b4b4e6b032e0ca809db8079d98536 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a81ab92381ce8e5855d9ba29afa7a830 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7ca1a0743abf79c7e8288654aa65e481 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cd320610f13be323d3849b9302c9cbaf |
| publicationDate | 1994-09-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H06271501-A |
| titleOfInvention | Method for producing naphthalene polycarboxylic acid |
| abstract | (57) [Abstract] [Purpose] Instead of cadmium compounds, etc., naphthalene polycarboxylic acids such as 2,3,6,7-naphthalene tetracarboxylic acid, etc., which are harmless to the human body and inexpensive catalysts are used. To produce an acid industrially with high yield. [Configuration] A sodium salt of naphthoic acids and / or naphthalene polycarboxylic acids and a potassium salt of organic acids, The reaction is carried out by heating in the presence of a zinc compound catalyst or in the presence of a zinc compound catalyst and sodium halide in an atmosphere of carbon dioxide gas or other inert gas. From the reaction product obtained by the reaction, 2,3,6,7-naphthalenetetracarboxylic acid and further 2,3,6-naphthalenetricarboxylic acid are separated and recovered. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2008543737-A |
| priorityDate | 1993-01-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 88.