摘要
采用ＢＥＴ、ＸＲＤ、ＩＲ和ＥＳＲ 等测试手段，考察了由４ 种不同方法制备的ＶＰＯ催化剂的比表面，钒的平均氧化态以及晶相组成研究了催化剂在不同条件下的活化以及用于正丁烷氧化制顺酐反应的催化性能实验结果表明。
Four VPO catalysts have been prepared and activated.Experimental results of using the catalysts for the oxidation of n-butane to maleic anhydride and the XRD、IR、BET and ESR of the catalysts showed:that hydroxylamine,isobutanol and benazalcohol are better reducing agents than oxalic acid.The main factor influencing the yield of maleic anhydride is the phase composition or oxidation state of vanadium in the catalyst,and is not the surface area of the catalyst.A good catalyst was composed of wellcrystallized (VO) 2P 2O 7 and α-VOPO 4 phase. The use of organic solvents can lead to increased surface area but does not always improve catalytic performance.
出处
《平顶山师专学报》
1999年第2期34-38,共5页
Journal of Pingdingshan Teachers College
基金
河南省教委自然科学基础项目
平顶山师专1998 年重点科研项目
