http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2007261957-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7ef01e33058cf740cf2197991be97af1 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-50 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-487 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C63-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-265 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-43 |
| filingDate | 2006-03-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_15c49687328eac48f4c6fe4d64612be3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f62537324e38d9787fd30a59c11f4665 |
| publicationDate | 2007-10-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2007261957-A |
| titleOfInvention | Method for producing high purity terephthalic acid |
| abstract | [Problem] To provide a method for producing high-purity terephthalic acid which uses steam generated by pressure reduction in a crystallization process more effectively and has excellent energy recovery efficiency. (I) A step of making crude terephthalic acid by slurrying by liquid phase oxidation of para-xylene into a slurry, (II) a step of heating the slurry stepwise in a plurality of heat exchangers to form a crude terephthalic acid aqueous solution, III) Step of hydrogenation treatment of the aqueous solution, (IV) Step of cooling the obtained aqueous solution stepwise in a plurality of crystallization tanks to crystallize terephthalic acid, and (V) Solid slurry of the obtained slurry A method for producing high-purity terephthalic acid including a step of separating, wherein step (II) introduces steam generated in step (IV) into a heat exchanger and heats the slurry; and in step (IV) At least one step of heating the crude terephthalic acid slurry by introducing a high-temperature fluid containing generated steam and a condensate generated in a heat exchanger into which steam at a higher temperature and pressure is introduced than the steam into the heat exchanger; . [Selection figure] None |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2016055456-A3 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9035095-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2011115136-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-WO2011115136-A1 |
| priorityDate | 2006-03-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.