文献类型：期刊文章

作　　者：战永复[1] 战瑞瑞[1]

机构地区：[1]北华大学师范理学院化学系,吉林132013

出　　处：《无机化学学报》

基　　金：吉林省科委资助课题(No.2000.034)。

年　　份：2002

卷　　号：18

期　　号：5

起止页码：505-508

语　　种：中文

收录情况：BDHX、BDHX2000、CAS、CSCD、CSCD2011_2012、IC、JST、RCCSE、RSC、SCI-EXPANDED(收录号：WOS:000175214100016)、SCIE、SCOPUS、WOS、ZGKJHX、核心刊

摘　　要：The new nanosolid superacid catalyst SO42-/TiO2 is compounded with nanometer chemical technology. This catalyst SO42-/TiO2 has good catalytic effects on esterificational reactions of ethylic acid and ethyl alcohol. It has many other advantages such as strong water proof quality, being able to be used repeatedly, being easy to be reclaimed, non corroding, non polluting. So it is a green industrial catalyst which is helpful to the environment and possesses wide prospect of applications. The crystallo process, specific surface area and sulphur content of the SO42-/TiO2 system have been studied with the method of XRD, XPS and the chemical analysis, the result of which indicates that catalytic activity and acid strength of SO42-/TiO2 is affected by the H2SO4 saturant concentration, baking temperature, precipitating condition, specific surface area and sulphur content. The best preparation conditions of SO42-/TiO2 are: ageing temperature at 0℃, 0.5mol·L-1 of H2SO4 concentration, baking temperature at 500℃and 3 hours of baking time.

关 键 词：纳米固体超强酸 催化酯化 二氧化钛  硫酸  催化剂  酯化反应 催化活性  

分 类 号：O621.256.4] O643.36[化学类]