http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20180092986-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e0bf0928b608797b70bbc2b91c7e52e |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-148 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-00495 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J27-053 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/C07C67-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D5-006 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/B01J31-0225 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-04 |
| 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/B01D3-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-053 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-54 |
| filingDate | 2016-11-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_87d4d4e0f55e97a427ac592dd9784fbb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1ea159b690be090d1caa24c693e9851e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6c680d600c62e8fa9b7f165dc97b7c05 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5079e27f0537c9f1231dd60bc0f023bb |
| publicationDate | 2018-08-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20180092986-A |
| titleOfInvention | Preparation of tert-butyl ester of ethylenically unsaturated carboxylic acid |
| abstract | a) reacting an ethylenically unsaturated carboxylic acid with isobutene in the presence of an acidic catalyst to provide an esterification mixture; b) removing the acid catalyst; c) removing low boiling point constituents; butyl ester of a ethylenically unsaturated carboxylic acid, wherein the liquid containing tert-butyl ester is introduced into a distillation apparatus and the product is purified by distillation in a distillation apparatus, wherein d1) distillation Wherein the tert-butyl ester containing liquid in the apparatus is separated to provide a tertiary butyl ester containing gaseous overhead product and a carboxylic acid containing liquid bottom product; d2) The gaseous overhead product containing tert-butyl ester is condensed to at least some extent and some of the condensate is returned to the distillation apparatus; d3) the carboxylic acid containing liquid bottom product is returned to step a) to at least some extent; d4) the carboxylic acid-containing liquid bottom product is withdrawn and conducted to the heater, the superheated liquid reflux stream is removed from the heater, and the superheated reflux stream is depressurized into the distillation apparatus; d5) In at least the overhead region of the distillation apparatus, the wall of the distillation apparatus in contact with the vapor is thermally insulated and / or heated at least in some regions. The separation of the tert-butyl ester from the unreacted carboxylic acid in the process proceeds in particular accompanied by a small degree of polymerization of both the tert-butyl ester and the 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: 148.