http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-19980032729-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-39 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-82 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-76 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-39 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-82 |
| filingDate | 1997-10-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1998-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-19980032729-A |
| titleOfInvention | Improved Oxidation Method in the Witten-Hercules Method to Prepare Dimethyl Terephthalate |
| abstract | The present invention relates to a process for oxidizing p-xylene and methyl p-toluate to an oxygen containing gas in a Witton Hercules process for the production of dimethyl terephthalate in two or more successively arranged partial steps in the presence of a catalyst. The process of the invention is based on a partial stage oxidation mixture, with or without recycle products containing oxidizable substances from the continuous stages of the DMT process in the presence of 5-30 mass% of methyl p-toluate. a portion of the p-xylene is oxidized to one or more p-xylene rich partial steps and / or recycle product in the presence of 2 to 30% by mass of p-xylene based on the total amount of methyl p-toluate and p-toluic acid Oxidizing methyl p-toluate and / or p-toluic acid to one or more additional methyl p-toluate rich partial steps, with or without use. |
| priorityDate | 1996-10-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 39.