http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20100103641-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bf8bcc2bfd2cd3195d5a0947279241d4 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-265 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-265 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C63-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-47 |
| filingDate | 2009-01-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_468614b6d25836ad00c2d8a02a163417 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b3d2bb9da07f64f933d4034362803cfe http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9e958b3da3656cd2cb95019f43ff0d48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8c0c166e6444f4266d58949960b78873 |
| publicationDate | 2010-09-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20100103641-A |
| titleOfInvention | Environmentally benign method for preparation of terephthalic acid using multi-step oxidation scheme |
| abstract | The present invention relates to a process for preparing terephthalic acid by liquid phase oxidation of paraxylene, specifically in the presence of a first catalyst comprising water solvent and manganese salt and / or cobalt salt in a first oxidation reactor. A first oxidation reaction of oxidizing the paraxylene at 100 to 170 ° C. to obtain terephthalic acid and paratoluic acid; And terephthalic acid by oxidizing the unreacted paraxylene and the reaction product of the first oxidation reaction at 150-220 ° C. in the presence of a water solvent and a second catalyst including manganese salt and / or cobalt salt in a second oxidation reactor. It provides a second oxidation reaction to obtain a, and provides a method for producing terephthalic acid characterized in that the concentration of the para xylene in the liquid in the first oxidation reactor to 30 to 90wt% at the start of the first oxidation reaction. . |
| priorityDate | 2008-01-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.