http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2005029565-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_696ca0ae93d5cf5a686273601361781f |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C63-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-47 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 |
| filingDate | 2004-06-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_520a23ccf12bd4c88130fea4735c02c6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7e709d7738f88d630d65e6882ac887fa http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0424d98409df46c2bf45c92c8459b134 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_acbbd5d25df189ac338491c7fac96895 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_51dcd6d947431dfec0913e4208e14770 |
| publicationDate | 2005-02-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2005029565-A |
| titleOfInvention | Method for producing high purity aromatic polycarboxylic acid |
| abstract | Provided is a method for industrially advantageously producing a highly pure aromatic polycarboxylic acid having a good hue and grain size from a crude aromatic polycarboxylic acid while reducing energy consumption with a simple constitution. To do. In producing a high-purity aromatic polycarboxylic acid by purifying a crude aromatic polycarboxylic acid, (I) 180-300 ° C. while stirring a slurry of the crude aromatic polycarboxylic acid in a first dispersion medium. (II) A slurry containing an aromatic polycarboxylic acid subjected to heat aging treatment is introduced into a dispersion medium substitution tower and brought into contact with a second dispersion medium, and the first dispersion containing impurities A dispersion medium replacing step for separating the liquid into a second dispersion medium slurry containing an aromatic polycarboxylic acid crystal, and (III) a crystal separation step for separating the aromatic polycarboxylic acid crystal from the second dispersion medium slurry. A process for producing a high-purity aromatic polycarboxylic acid, comprising: [Selection] None |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2010514757-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2011207780-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2009038045-A1 |
| 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: 65.