http://rdf.ncbi.nlm.nih.gov/pubchem/patent/SK-3512001-A3
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_74143a02b42b52722da005fb4d927bbc |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-487 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-43 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-44 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C55-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-215 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C55-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-43 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-487 |
| filingDate | 1999-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1afbbc98d5f3b252a4ad76dbdca7db69 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f1359c947cf14090baa44e2dc2bf811e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_32286b5c3fa31631c335d467ef9b9c78 |
| publicationDate | 2001-09-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | SK-3512001-A3 |
| titleOfInvention | Method for separating and purifying carboxylic acid derived from the direct oxidation of a hydrocarbon |
| abstract | The invention concerns an improved method for treating a reaction medium derived from the direct oxidation of hydrocarbon into carboxylic acid, using molecular oxygen or a gas containing same, in liquid phase, in a solvent and in the presence of a catalyst dissolved in the reaction medium. The method is characterised in that it consists in: when the reaction composition medium allows it, decantation into two liquid phases: a higher non-polar phase and a lower polar phase; distillation of said lower phase, or as the case may be the whole reaction mixture, for separating the distillate and the distillation tail comprising the acid formed, the catalyst, the heavy compounds, at least part of the solvent and optionally the intermediates and by-products of the reaction; purification treatment by oxidation, using molecular oxygen or a gas containing same or using oxygen donors, of the previously obtained distillation tail; distillation of the solvent and intermediates and by-products of the reaction possibly still in the mixture; crystallisation of the carboxylic acid produced in the reaction; re-crystallisation in water of the carboxylic acid produced from the reaction. |
| priorityDate | 1998-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.