| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b7cf8899536ada438ee1c7dab69748c9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_23df37f93d3bcb7c60c7018077e3e422 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-00162
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-00105
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-00006
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-00103 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J19-1862
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-265
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J8-006 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J8-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-265
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J19-18 |
| filingDate |
2000-03-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2004-05-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9ec43be3a98ad22d69c582985ab90b36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_89712193dd1dcefa2b3acbf0485204b3 |
| publicationDate |
2004-05-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1163199-B1 |
| titleOfInvention |
Process for the production of aromatic acids |
| abstract |
A description is given here of a novel process for the production of monocarboxylic and polycarboxylic aromatic acids by the catalytic oxidation in homogeneous phase of aromatic compounds carrying at least one oxidizable substituent group attached directly to the carbon atom of the corresponding aromatic nucleus. The novel process according to the present invention comprises the steps of: a) catalytically oxidizing the corresponding aromatic precursors in liquid phase in the presence of gaseous oxygen; b) filtering the end product; c) recycling into the oxidation reactor at least part of the mother liquors resulting from the filtration stage, and is characterized by the fact that said steps from (a) to (c) are carried out in a closed and continuous cycle operating substantially under the same pressure and temperature conditions, preferably at 2-10 barg and 100-140° C. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101077857-B |
| priorityDate |
1999-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |