http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-10138776-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_04019213e77518cb749eb96179aedf7b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-39 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-39 |
| filingDate | 2001-08-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2003-04-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c20a140da311403406940062a7806458 |
| publicationDate | 2003-04-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-10138776-C1 |
| titleOfInvention | Process for the oxidation of p-xylene (pX) and p-toluic acid methyl ester (pTE) with oxygen-containing gases in the presence of a catalyst in the Witten process for the production of dimethyl terephthalate |
| abstract | In the Witten process for the production of dimethyl terephthalate, the oxidation of p-xylene and p-toluic acid methyl ester takes place with oxygen-containing gases in the presence of a catalyst. The condensable vapors of oxidizers, circulation products and excess feed products of the process are fed into a xylene tank in liquid form. An organic and aqueous phase forms in the xylene tank, water being present as a disperse phase in the organic phase. This 0.5 to 10% by weight emulsion of water generally contains metal ions which reduce the effectiveness of the catalyst system. For this reason, the disperse phase water is separated before the organic phase is introduced into the oxidation stage. |
| priorityDate | 2001-08-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 56.