非晶态合金催化剂用于二乙醇胺脱氢氧化制备亚氨基二乙酸的研究  

Application of Amorphous Alloy Catalysts in Dehydrogenation Oxidation of Diethanolamine to Produce Iminodiacetic Acid

作　　者：曾小君[1] 杨高文[1] 徐肖邢[1] 杨刚[1] 

机构地区：[1]常熟高等专科学校生化系,江苏常熟215500

出　　处：《精细化工》2001年第10期608-610,616,共4页Fine Chemicals

基　　金：江苏省教育厅基金资助项目 ( 0 0KJB15 0 0 10~~

摘　　要：用自制的非晶态合金催化剂一步催化脱氢氧化二乙醇胺合成亚氨基二乙酸 ,考察了催化剂与二乙醇胺的质量比、反应温度、时间、压力和pH值对亚氨基二乙酸转化率的影响 ,并与其它RaneyCu类催化剂进行了对比。结果表明 ,使用CSGZ - 0 4非晶态合金催化剂进行二乙醇胺脱氢氧化 ,当反应温度为 16 0～ 180℃、压力为 12～ 18MPa、pH值为 12 6 8、催化剂与二乙醇胺质量比为 16 5∶10 0、反应时间为 2 5～ 3h时 ,亚氨基二乙酸的收率≥ 98% ,CSGZ - 0 4催化剂重复使用2 4次时 ,亚氨基二乙酸的收率≥ 95 %Amorphous alloys were used as catalysts for dehydrogenation oxidation of diethanolamine to produce iminodiacetic acid. Effects of operating conditions on the reaction were examined. Dehydrogenation oxidation efficiency of different catalysts were studied. The results showed that amorphous alloy catalyts (CSGZ - 04) had higher activity than Raney Cu catalyst. By using CSGZ - 04 catalyst, the percentage coversion of iminodiacetic acid was greater than or equal 98% at reaction temperature of 160 - 180°C, reaction pressure of 12 - 18 MPa, catalyst-to-diethanolamine ratio of 16.5:100, pH value of 12.68 and reaction time of 2.5 - 3.5 h. CSGZ - 04 catalysts still retained high activity after being used 24 times, and the percentage coversion of iminodiacetic acid was greater than or equal 95%.

关 键 词：二乙醇胺 亚氨基二乙酸 非晶态合金催化剂 脱氢氧化 

分 类 号：TQ226.36[化学工程—有机化工]