http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20030069372-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1bc8d5b80410c3a0594da023cfabcbe0 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C63-38 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-48 |
| filingDate | 2002-02-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_acf0b8ed997d379a976fe49d18a5d5f8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9a56a11d70d289233da115afc18fd035 |
| publicationDate | 2003-08-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20030069372-A |
| titleOfInvention | The Purification Method Of 2,6-Naphthalenedicarboxylic Acid |
| abstract | The present invention relates to a method for purifying 2,6-naphthalenedicarboxylic acid prepared by oxidizing 2,6-dimethylnaphthalene under a bromine / cobalt / manganese catalyst.n n n 1) Impurity-containing 2,6-naphthalenedicarboxylic acid is dissolved in a mixed solvent of alcohols and pyridines and hydrogenated under a carbon catalyst supported by one metal selected from the group consisting of iron, cobalt, nickel, palladium and platinum. Doing; Andn n n 2) washing the product of step 1) with water, alcohol or water / alcohol mixed solventn n n The present invention relates to a method for purifying 2,6-naphthalenedicarboxylic acid composed of the present invention, and according to the present invention, it is possible to relatively easily purify 2,6-naphthalenedicarboxylic acid with high purity enough to be used as a raw material of polyethylene naphthalate. can do. |
| priorityDate | 2002-02-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 69.