| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d648658dd620f548c24de39659a5e9e3 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-584 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-4023
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D33-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-47
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D33-073
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D33-66 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J38-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J38-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D33-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-92
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J38-06 |
| filingDate |
2004-11-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_614beac68ea2c0af3800983bfce156da
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_359510a78fadcdc744024ad2a0c3693a |
| publicationDate |
2007-03-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1758846-A1 |
| titleOfInvention |
Process for removal of impurities from mother liquor in the synthesis of carboxylic acid using pressure filtration |
| abstract |
A process is disclosed that relates to the recovery of a metal catalyst from an oxidizer purge stream produced in the synthesis of carboxylic acid, typically terephthalic. More particularly, the process involves recovery of a metal catalyst from an oxidizer purge stream through the use of a pressure filter, the combining of water with a mother liquor to recover the metal catalyst and then subjecting an aqueous mixture so formed to a single stage extraction with an extraction solvent to produce an extract stream comprising organic impurities and a raffinate stream comprising the metal catalyst. |
| priorityDate |
2004-06-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |