公开(公告)号：US4364869A

公开(公告)日：1982-12-21

申请号：US288065

申请日：1981-07-29

申请人： Wolfgang H. E. Muller ,  Peter Hofmann

发明人： Wolfgang H. E. Muller ,  Peter Hofmann

IPC分类号： C07C69/02 ,  B01D3/36 ,  B01J23/00 ,  B01J23/70 ,  B01J31/00 ,  B01J31/02 ,  B01J31/28 ,  B01J31/40 ,  C07B61/00 ,  C07C20060101 ,  C07C67/38 ,  C07C67/48 ,  C07C69/24 ,  C11C3/12

CPC分类号： C07C67/38

摘要： A process for the production of alkyl esters of saturated aliphatic carboxylic acids by reacting in an alkoxycarbonylation stage olefins with carbon monoxide and alkanol in the presence of a catalyst consisting of a cobalt compound and a promoter from the group of pyridine, non-ortho-substituted alkylpyridine or mixtures thereof at elevated pressure and elevated temperature. The reaction mixture produced is reprocessed and the pyridine, non-ortho-substituted alkylpyridine, or mixture used as the promoter is rectified prior to its feedback into the alkoxycarbonylation stage in the presence of a given carboxylic acid which is thermally stable under the conditions of reprocessing and which forms a maximum azeotrope with the promoter under the conditions of rectification.

摘要翻译： 一种通过在烷氧基羰基化阶段的烯烃与一氧化碳和链烷醇反应的催化剂存在下制备饱和脂肪族羧酸的烷基酯的方法，所述催化剂由钴化合物和来自吡啶，非邻位取代基的助催化剂 烷基吡啶或其混合物在升高的压力和升高的温度下进行。 所产生的反应混合物被再处理，并且吡啶，非邻位取代的烷基吡啶或用作助催化剂的混合物在反应进入烷氧羰基化阶段之前在给定的羧酸的存在下进行精馏，所述羧酸在再加工条件下是热稳定的 并且在整流条件下与助催化剂形成最大共沸物。