介孔碳负载钌催化癸二酸选择性加氢制备10-羟基癸酸

摘要

以Ru-Sn/MC为催化剂,研究癸二酸为液相催化加氢制备10-羟基癸酸反应工艺.结果表明,以水为溶剂,癸二酸水溶液浓度1.0％,催化剂用量为癸二酸质量的10％,NaOH与癸二酸摩尔比为0.5∶1,反应压力为5MPa,反应温度为230℃.在优化工艺条件下,癸二酸的转化率为84.8％,10-羟基癸酸的选择性为66.4％.%Catalytic hydrogenation of sebacic acid to 10-hydroxydecanoic acid over Ru-Sn/MC catalyst in water solution was investigated.Reaction parameters were optimized as follows:the concentration of sebacic acid was 1.0％,mass ratio of catalyst to sebacic acid was 10％,molar ratio of NaOH to sebacic acid was 0.5 ∶ 1,the reaction temperature was 230 ℃ and the hydrogen pressure was 5 MPa.The results show that the conversion of sebacic acid of 84.8％ with the selectivity of 10-hydroxydecanoic acid of 66.4％ was obtained under the optimized reaction conditions.