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Studies on Preparation and Characterization of Rare Earth Composite Hydrogenation Catalyst Cu-Cr-Mo-La/SiO2
Author(s): 
Pages: 18-20
Year: Issue:  1
Journal: CHEMISTRY & BIOENGINEERING

Keyword:  Cu-Cr-Mo-La/SiO2催化剂硝基苯加氢苯胺;
Abstract: 用溶胶-凝胶法制备了一系列Cu-Cr-Mo-La/ SiO2稀土复合加氢催化剂,通过TPR、XRD、TG技术对其进行了表征,并在一定条件下对其催化活性进行了评价.结果表明,在Cu/SiO2催化剂中引入Cr、Mo和稀土La氧化物使催化剂中CuO晶粒变小、分散性变大,提高了催化剂的稳定性及抗结焦能力.Cu-Cr-Mo-La/ SiO2稀土复合加氢催化剂对硝基苯加氢制苯胺具有非常高的选择性和较高的转化率.
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