[EN] HETEROGENEOUS CATALYZED PROCESS FOR THE PRODUCTION OF 2,2,6,6-TETRAMETHYL-4-PIPERIDONE<br/>[FR] PROCÉDÉ CATALYSÉ HÉTÉROGÈNE POUR LA PRODUCTION DE 2,2,6,6-TÉTRAMÉTHYL-4-PIPÉRIDONE
申请人:BASF SE
公开号:WO2020239651A1
公开(公告)日:2020-12-03
The present invention relates to a process for the production of 2,2,6,6-tetramethyl-4-piperidone particularly comprising (i) providing a reactor containing a catalyst comprising a zeolitic material having a framework structure of FAU, wherein the zeolitic material comprises YO2 and X2O3 in its framework structure, wherein Y is a tetravalent element and X is a trivalent element, wherein the zeolitic material has an YO2 to X2O3 molar ratio of 16 to 175; (ii) preparing a reaction mixture comprising acetone and ammonia; (iii) contacting the catalyst in the reactor with the reaction mixture prepared in (ii) at a temperature in the range of from 40 to 250 °C for obtaining a reaction product comprising 2,2,6,6-tetramethyl-4-piperidone; wherein the mixture prepared in (ii) and contacted with the catalyst in (iii) contains less than 10 weight-% of water based on 100 weight-% of the reaction mixture.
本发明涉及一种生产2,2,6,6-四甲基-4-哌啶酮的方法,特别包括:(i)提供一个反应器,其中装有一种催化剂,该催化剂包括一种具有FAU骨架结构的沸石材料,其中该沸石材料的骨架结构包括YO2和X2O3,其中Y是四价元素,X是三价元素,其中沸石材料的YO2与X2O3的摩尔比为16至175;(ii)制备一个反应混合物,包括丙酮和氨;(iii)将(ii)中制备的反应混合物与反应器中的催化剂接触,在40至250°C的温度范围内获得包含2,2,6,6-四甲基-4-哌啶酮的反应产物;其中在(ii)中制备的混合物与(iii)中与催化剂接触的混合物中,基于反应混合物的100重量-%,含水量不到10重量-%。