http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-2608610-T3
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cb2251193847ca530b52967595559c30 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C63-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-47 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-47 |
| filingDate | 2005-01-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9ccbd38fd8a062665eb57df943abfcbe http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c9680c5f931a8018bae72307ad31708e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_61bac418d264d082415524e721765610 |
| publicationDate | 2017-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | ES-2608610-T3 |
| titleOfInvention | Process for the production of a dry terephthalic acid cake suitable for use in the production of polyester |
| abstract | A process for producing a dry terephthalic acid cake (170), said process comprising: (a) removing impurities from a suspension of terephthalic acid (30) in a solid-liquid separation zone (40) to form an acid product terephthalic in suspension or cake (70) and a stream of mother liquor (60); (b) adding solvent in a countercurrent solvent wash zone (80) to said slurry terephthalic acid product or cake (70) to produce a solvent terephthalic acid cake (110) and a solvent mother liquor stream (100); where the solvent comprises an aliphatic monocarboxylic acid containing from 2 to 6 carbon atoms, or benzoic acid, and mixtures of these compounds with water; (c) adding water in a countercurrent water wash zone (120) to said solvent terephthalic acid cake (110) to produce a water-wet terephthalic acid cake (150) and a solvent by-product liquor stream / water (140); (d) drying said water-wet terephthalic acid cake (150) in a drying zone (160) to form said dry terephthalic acid cake (170), wherein said countercurrent solvent wash zone (80) comprises a device solid-liquid separation that is operated at a temperature between 40ºC to 155ºC; and wherein said countercurrent water washing zone (120) comprises a solid-liquid separation device that is operated at a temperature between 40 ° C to 155 ° C. |
| priorityDate | 2004-01-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 38.