http://rdf.ncbi.nlm.nih.gov/pubchem/patent/TW-593272-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4d0bc14697bfe2291a34832d1b7fdd67 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-54 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-54 |
| filingDate | 2001-02-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2004-06-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e9a15aba4368b1b4cf5115d5644cc201 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_654bd09a17ae42a3f91ee3babbfc540e |
| publicationDate | 2004-06-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | TW-593272-B |
| titleOfInvention | Process for production of high-purity bis-beta-hydroxyethyl terephthalate |
| abstract | A process for production of high-purity bis-beta-hydroxyethyl terephthalate is provided, which comprises the step (1) of esterifying crude terephthalic acid with ethylene glycol and/or ethylene oxide to obtain a reaction product containing bis-beta-hydroxyethyl terephthalate, the step (2) of converting the reaction product formed in the step (1) into a solution of bis-beta-hydroxyethyl terephthalate (solute) in ethylene glycol (solvent), if necessary, with additional ethylene glycol, and then removing ions from the solution to form a deionized solution, the step (3) of distilling the deionized solution formed in the step (2) to recover crude bis-beta-hydroxyethyl terephthalate with low-boiling matter distilled away, and the step (4) of subjecting the crude bis-beta-hydroxyethyl terephthalate obtained in the step (3) to molecular distillation to recover bis-beta-hydroxyethyl terephthalate as distillate. |
| priorityDate | 2000-02-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 47.