张舜光,崔阳,刘林林,张金颐,陈学青

• 1:天津理工大学化学化工学院
• 2:中国天辰工程有限公司技术发展部
• 3:河北工业大学化工学院

摘要(Abstract)：

针对草酸二甲酯(DMO)加氢制备乙醇酸甲酯(MG)反应中，银(Ag)基催化剂成本较高、催化性能不稳定等问题，为降低成本并提高催化性能，以水热合成法制备的树枝状纤维形二氧化硅纳米球(KCC-1)为载体，采用等体积浸渍法制备Ag/KCC-1、Ag-Ni/KCC-1负载型催化剂。考察了Ag的较优负载量及总负载量不变时，Ag与镍(Ni)较佳的质量比。结果表明，Ag/KCC-1催化剂中，不同Ag负载量的催化剂，其结构和催化性能均有所不同，Ag负载量(质量分数)为15%时，性能较好；Ag-Ni/KCC-1催化剂中，适量Ni的引入对催化剂的结构和催化性能均有明显提高，当Ag和Ni的负载量分别为12%和3%时，催化性能较佳，与单组分负载的Ag/KCC-1催化剂相比，DMO转化率由90.37%提高至96.75%,MG转化率由90.77%提高至92.48%,MG收率由82.04%提高至89.47%。

关键词(KeyWords)： 草酸二甲酯;乙醇酸甲酯;催化剂;树枝状纤维形二氧化硅纳米球;Ag-Ni/KCC-1

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 张舜光,崔阳,刘林林,张金颐,陈学青

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