http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20040011808-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6b4a80ac02f1ecd0e698ec665e9b36b6 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-265 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-255 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-265 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-255 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C63-307 |
| filingDate | 2002-07-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ee61f822795f71b24ee011c73c03dd3e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_64f15c8e937a4165419682debe7f9b94 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_85159d02225790718cb8f498396207b3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_78c35bad8fbb9ffc87f51ac18d13c907 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_84cb47313c9dffd4608119b80fad6dcd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_14fd3c279f509a4b288f0764554541c3 |
| publicationDate | 2004-02-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20040011808-A |
| titleOfInvention | Method for preparing trimellitic acid |
| abstract | The present invention provides a method for producing trimellitic acid by liquid phase oxidation of pseudocumene with a gas containing molecular oxygen in an acetic acid solvent in the presence of an oxidation catalyst including cobalt, manganese, zirconium, and bromine. In the presence of an initial oxidation catalyst comprising at least three components selected from the group consisting of cobalt compounds, manganese compounds, zirconium compounds, and bromine compounds, the first reaction for 5 to 20 minutes at a reaction temperature of 120 to 200 ℃, After the second reaction for 30 to 60 minutes at a reaction temperature of 160 to 220 ℃ adding a catalyst containing at least two components selected from the group consisting of the cobalt compound, manganese compound, zirconium compound, and bromine compound, the catalyst Stopping the dosing, and maintaining the reaction at a reaction temperature of 180 to 230 ° C. for 5 to 20 minutes to complete the reaction. It relates to a method for producing a non-continuous trimellitic maintaining a pressure from 100 to 450psig throughout. According to the method of the present invention, through complete oxidation of pseudocumene, not only can a reaction for producing carbon dioxide and water or a reaction for generating a high boiling point side reaction product can be suppressed, but also trimellitic acid can be obtained with high purity. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10975021-B2 |
| priorityDate | 2002-07-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 61.