http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EA-035883-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e0bf0928b608797b70bbc2b91c7e52e |
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| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-0225 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-053 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-009 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-143 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D5-006 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-14 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-62 |
| filingDate | 2016-11-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5079e27f0537c9f1231dd60bc0f023bb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6c680d600c62e8fa9b7f165dc97b7c05 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1ea159b690be090d1caa24c693e9851e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_87d4d4e0f55e97a427ac592dd9784fbb |
| publicationDate | 2020-08-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EA-035883-B1 |
| titleOfInvention | PREPARATION OF TER-BUTYL ETHERS OF ETHYLENE-UNSATURATED CARBONIC ACIDS |
| abstract | A method for continuous production of ethylenically unsaturated carboxylic acid tert-butyl ester, comprising the following steps: a) reaction of ethylenically unsaturated carboxylic acid with isobutene in the presence of an acid catalyst to obtain an esterification mixture; b) removing the acid catalyst; c) removal of low boiling point components; and d) feeding the tert-butyl ether-containing liquid to a distiller where it is purified by distillation, d1) the distillation tank separates the tert-butyl ether-containing liquid into a gaseous overhead product containing tert-butyl ether, and a liquid underflow containing carboxylic acid; d2) at least partial condensation of the gaseous overhead product containing tert-butyl ether occurs, and at least partial recirculation of the condensate to the distiller as a reflux stream; d3) there is at least partial recirculation of the liquid underflow containing carboxylic acid to step a); d4) the carboxylic acid-containing liquid underflow is withdrawn and fed to a heating device; a superheated liquid recirculation stream is withdrawn from the heating device, which is released into the distiller; and d5) at least in the upper part of the distiller, the walls in contact with the steam are heated at least at some points, and / or such walls are thermally insulated at least at some points. During the process, the separation of tert-butyl ester from unreacted carboxylic acid occurs at a particularly low level of concomitant polymerization of tert-butyl ester and carboxylic acid. |
| priorityDate | 2015-12-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 163.