http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20040111174-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_696ca0ae93d5cf5a686273601361781f |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J11-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C63-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-43 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-487 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C63-333 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J11-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F20-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J11-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-43 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-487 |
| filingDate | 2004-06-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0424d98409df46c2bf45c92c8459b134 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_13d3ca3d7461a1922beb8780b0b0752d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7e709d7738f88d630d65e6882ac887fa http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_520a23ccf12bd4c88130fea4735c02c6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_acbbd5d25df189ac338491c7fac96895 |
| publicationDate | 2004-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20040111174-A |
| titleOfInvention | Process for producing a high purity aromatic polycarboxylic acid |
| abstract | When the crude aromatic polycarboxylic acid is purified to produce a high purity aromatic polycarboxylic acid, (I) heat aging treatment at 180 to 300 ° C. for 10 minutes or more while stirring the slurry of the crude aromatic polycarboxylic acid with the first dispersion medium. (II) a slurry containing the aromatic polycarboxylic acid subjected to the heat aging treatment was introduced into a dispersion medium replacement column and brought into contact with a second dispersion medium to crystallize the first dispersion medium containing impurities and the aromatic polycarboxylic acid crystal. Dispersion medium replacement step of separating into a second dispersion medium slurry containing a (III) and a crystal separation step of separating the aromatic polycarboxylic acid crystals from the second dispersion medium slurry. By purifying the crude aromatic polycarboxylic acid in such a process, it is possible to industrially advantageously produce aromatic polycarboxylic acid having good color and particle diameter and high purity while reducing energy consumption with a simple configuration. |
| priorityDate | 2003-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 63.