http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-1296742-C
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_418794f977067c0f17e47818617b8557 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C63-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-487 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-487 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C63-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-42 |
| filingDate | 1987-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1992-03-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3f8fe75da033df7c9eff3aa39d558be0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5f9cd4dab5d8226610fbb30c377463f7 |
| publicationDate | 1992-03-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-1296742-C |
| titleOfInvention | Process for the production of high purity terephthalic acids |
| abstract | ABSTRACT OF THE DISCLOSURE A process for the production of high purity terephthalic acid, by subjecting a crude terephthalic acid product, resulting from oxidation of a paradialkylbenzene and containing 4-carboxybenzaldehyde and other impurities in relatively high level, to an efficient purification with high yield of terephthalic acid, which process comprises subjecting a high temperature aqueous solution of the crude terephthalic acid product to (A) oxidation under an oxygen-containing gas while feeding oxygen at a feed rate within the range of 0.4 - 10 moles per mole of the 4-carboxybenzaldehyde contained in the crude terephthalic acid and than to (B) treatment with hydrogen. |
| priorityDate | 1986-10-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 54.