http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2019501907-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-00495 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-148 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-62 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/C07C67-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-143 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D5-006 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-009 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-053 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-04 |
| filingDate | 2016-11-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-01-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2019501907-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 acid catalyst to an esterification mixture; b) separating the acid catalyst; c) separating the low-boiling components; d) tert. Feeding the butyl ester-containing liquid into the distillation apparatus and purifying it in the distillation apparatus, where d1) the tert-butyl ester-containing liquid in the distillation apparatus and the gaseous top product and carboxylic acid Dividing into a liquid bottom product containing, d2) at least partially condensing the gaseous top product containing tert-butyl ester and returning the condensate partially as reflux to the distillation apparatus, d3) liquid bottom containing carboxylic acid The product is at least partially returned to step a), d4) the carboxylic acid-containing liquid bottom product is discharged and sent to the heater, and the superheated liquid recycle stream is Removing from the heater and releasing the superheated recycle stream into the distillation apparatus, and d5) heating and / or insulating at least in the partial area the wall of the distillation apparatus which is in contact with the steam at the top area of the distillation apparatus, For the continuous production of tert-butyl esters of ethylenically unsaturated carboxylic acids. In this process, separation of tert-butyl ester from unreacted carboxylic acid proceeds under particularly low polymerization of both 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: 166.