公开(公告)号：EP4410771A1

公开(公告)日：2024-08-07

申请号：EP23154927.0

申请日：2023-02-03

申请人： BASF SE

发明人： Roessler, Harald ,  Mahnke, Eike Ulf ,  Kopka, Joerg ,  Krueppel, Heinz-Josef ,  Muckenschnabel, Christian ,  Scholinakis, Konstantinos

IPC分类号： C07C67/03 ,  C07C69/26 ,  C07C69/30 ,  C11B1/02 ,  B01J21/10 ,  B01J23/04 ,  B01J27/16 ,  C11C3/10

CPC分类号： C07C67/03 ,  B01J23/04 ,  C11C3/003 ,  C11C3/06 ,  C11C3/08 ,  B01J23/02

摘要： The invention is related to a transesterification process comprising treating an alkyl ester of a carboxylic acid (a) of formula 1a or 1b

         R1-C(O)O-R2     (formula 1a)

         R2-(O)C-O-R3-O-C(O)-R2     (formula 1b)

wherein R1 and R3 is the saturated or unsaturated, branched or linear aliphatic or aromatic or alkoxylated residue and R2 is selected from the group consisting of methyl, ethyl, propyl, isopropyl, n-butyl, and 2,2-butyl,
with a monofunctional alcohol (b1) of formula 2,

         R4-OH     (formula 2),

wherein R4 is a linear or branched, saturated or unsaturated alkyl or a polyfunctional alcohol (b2) selected from glycerol, 1, 3-propylenglycol, 1,2-propylenglycol, ethylenglycol, 1,2-butandiol, 1,4-butandiol, 2,3-butandiol
in the presence of the catalysts lithiumhydroxide and magnesiumoxide (MgO) and optionally sodium hypophosphite. The use of the specific catalyst composition enables an energy-saving more efficient process than standard prior art transesterification processes.