http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102070442-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d6a6f422b091ba12ea61d4adbf1b0e8e |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-43 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C63-38 |
| filingDate | 2010-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2013-07-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_91afd29c1e1788ebfe1c9910c2620472 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_deb2efe144aa67412023db4fb9331309 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_77f59d0fcc4f5ae8038f12fc45227b7a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d64beef691e20be372f1d705bdd28dc6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6cacb6db6a53e0298cca0e95b4fcaff8 |
| publicationDate | 2013-07-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102070442-B |
| titleOfInvention | Method for producing high-purity naphthalic acid |
| abstract | The invention discloses a method for producing high-purity naphthalic acid, which comprises the following steps of: mixing crude naphthalic acid prepared by liquid-phase air oxidization and adduct crystal solvent, performing adduct crystallization, separating to obtain separated naphthalic acid adduct crystal, and performing solvent removal treatment on the naphthalic acid adduct crystal. By adopting the adduct crystallization method, colored impurities in the crude naphthalic acid can be effectively removed, a high-purity naphthalic acid product with high chromaticity index can be prepared, rigorous reaction conditions and high catalyst cost can be avoided, the production cost and the equipment cost are reduced, and the economic benefit is improved. |
| priorityDate | 2010-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 60.