http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-102015205752-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e0bf0928b608797b70bbc2b91c7e52e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-54 |
| filingDate | 2015-03-31-04:00^^<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_87d4d4e0f55e97a427ac592dd9784fbb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6c680d600c62e8fa9b7f165dc97b7c05 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1ea159b690be090d1caa24c693e9851e |
| publicationDate | 2016-10-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-102015205752-A1 |
| titleOfInvention | Preparation of tert-butyl esters of aliphatic carboxylic acids |
| abstract | A process for the continuous production of the tert-butyl ester of an aliphatic C 1 -C 4 carboxylic acid comprises a) the reaction of an aliphatic C 1 -C 4 carboxylic acid with isobutene in the presence of an acidic catalyst to form an esterification mixture (G1); b) partial evaporation of the esterification mixture (G1) to obtain a liquid first high-boiling phase (SPh1) containing the acidic catalyst and a first vapor (B1) containing tert-butyl ester; c) the fractionating condensation of the first vapor (B1) by partially condensing the first vapor (B1) at a first pressure and a first temperature and obtaining a first condensate (K1), the uncondensed second vapor (B2) in a second Partially condensed pressure and a second temperature and a second condensate (K2) receives, wherein the first temperature is 0 to 45 ° C below the condensation temperature of the tert-butyl ester at the first pressure and the second temperature 45 to 80 ° C below the condensation temperature of the tert Butyl ester is at the second pressure, with the proviso that the second temperature is at least 5 ° C below the first temperature; and d) the combination of the first condensate (K1) and the second condensate (K2) and the supply to a common work-up, and the recycling of the uncondensed at the second temperature third vapors (B3) in step a). The process allows the preparation of the tert-butyl ester of an aliphatic C 1 -C 4 carboxylic acid by reacting the carboxylic acid with isobutene, wherein unreacted isobutene is isolated from the esterification mixture in an energetically favorable manner and with an improved degree of separation. |
| priorityDate | 2015-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 156.