改性骨架镍催化马来酸酐加氢制备琥珀酸酐  

Mild Hydrogenation of Maleic Anhydride to Succinic Anhydride Catalyzed by Modified Skeletal Nickel

作　　者：刘益材[1] 荣泽明[1] 杜文强[1] 胡少伟[1] 吕连海[1] 

机构地区：[1]大连理工大学化工学院精细化工国家重点实验室,辽宁大连116012

出　　处：《精细化工》2010年第7期678-681,共4页Fine Chemicals

基　　金：国家高技术研究发展计划(863计划)(2007AA03Z345)~~

摘　　要：将骤冷法制备的改性骨架镍用于马来酸酐(MA)的催化加氢,可在温和条件下高选择性地制备琥珀酸酐(SA)。考察了不同反应参数对该反应的影响,当采用1,4-二氧六环为溶剂,在0.2MPa和30℃的温和条件下反应60min,马来酸酐的转化率和琥珀酸酐的选择性均可达到100%。在上述条件下,该反应表现为零级反应,其表观活化能为27.1kJ/mol。Maleic anhydride was selectively hydrogenated into succinic anhydride over the modified skeletal Ni under mild conditions. Effects of different solvents, initial concentration of maleic anhydride, reaction temperature and pressure have been investigated. Under the optimized reaction conditions of 0.2 MPa,30 ℃ and using dioxane as solvent,the conversion of maleic anhydride and the selectivity of succinic anhydride are both close to 100% in 60 minutes. The reaction is a pseudo-zero order reaction, and the apparent activation energy of the catalytic hydrogenation of maleic is 27.1 kJ/mol.

关 键 词：改性骨架镍 催化加氢 马来酸酐 琥珀酸酐 

分 类 号：TQ426.61[化学工程]