EP 0127104 B1 19870318 - PROCESS FOR THE PREPARATION OF FATTY-ACID ESTERS OF SHORT CHAIN ALIPHATIC ALCOHOLS FROM FREE FATTY-ACID-CONTAINING FATS AND/OR OILS
Title (en)
PROCESS FOR THE PREPARATION OF FATTY-ACID ESTERS OF SHORT CHAIN ALIPHATIC ALCOHOLS FROM FREE FATTY-ACID-CONTAINING FATS AND/OR OILS
Publication
Application
Priority
DE 3319590 A 19830530
Abstract (en)
[origin: US4608202A] For the production of fatty acid esters of short-chain, aliphatic alcohols by the catalytic transesterification of natural fats and/or oils containing free fatty acids (oil phase) with the corresponding monoalcohols, the oil phase is subjected to preliminary esterification with the monoalcohols in the presence of acidic esterification catalysts at temperatures no higher than 120 DEG C. and under pressures no higher than 5 bars and in the presence of a liquid entraining agent substantially immiscible with the oil phase, after which the reaction product is separated into an entraining agent phase containing the acidic catalyst and water of reaction and the treated oil phase, the oil phase is then subjected to transesterification while the acidic catalyst-containing entraining agent phase is returned, after at least partial drying, to the preliminary esterification stage. By this process, fats and/or oils with acid numbers of up to 60 can be processed in the preliminary esterification stage to give an oil phase having a low acid number.
IPC 1-7
IPC 8 full level
C07C 67/02 (2006.01); C11C 3/04 (2006.01); C11C 3/10 (2006.01)
CPC (source: EP US)
C11C 3/04 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE FR IT NL
DOCDB simple family (publication)
EP 0127104 A1 19841205; EP 0127104 B1 19870318; BR 8402569 A 19850423; DE 3319590 A1 19841206; DE 3462698 D1 19870423; GB 2140817 A 19841205; GB 2140817 B 19860917; GB 8413115 D0 19840627; JP S6035099 A 19850222; MY 8700278 A 19871231; PH 19123 A 19860108; US 4608202 A 19860826
DOCDB simple family (application)
EP 84105794 A 19840521; BR 8402569 A 19840529; DE 3319590 A 19830530; DE 3462698 T 19840521; GB 8413115 A 19840522; JP 11219584 A 19840530; MY 8700278 A 19871230; PH 30729 A 19840529; US 59909084 A 19840411