http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20010052888-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-43 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C63-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C63-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C- http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-235 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-43 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-42 |
| filingDate | 1999-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2001-06-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20010052888-A |
| titleOfInvention | Method to reduce carboxybenzaldehyde isomers in terephthalic acid or isophthalic acid |
| abstract | A method for reducing the carboxybenzaldehyde isomers in the preparation of terephthalic acid and / or isophthalic acid is described. Under conditions of normal temperature and atmospheric pressure, coarse TPA or IPA is dissolved in N-methyl pyrrolidone and then contacted with an oxidizing agent, such as substantially anhydrous hydrogen peroxide, to give the carboxybenzaldehyde isomer (4-CBA or 3-CBA) to Switch to IPA. |
| priorityDate | 1998-06-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 88.