摘要
镧对磷钒催化剂性能的影响李铭岫，王心葵，杨述韬，张志新，刘翠格，周敬来（河北师范学院化学系，石家庄０５００９１；中国科学院山西煤炭化学研究所，太原０３０００１）关键词镧，磷钒催化剂，正丁烷，选择，氧化，顺丁烯二酸酐磷钒系催化剂是正了烷氧化制顺丁烯二酸...
The effect of La on the composition and the structure of catalystsP1.1V1.0Lax and on their catalytic behavior for the selective oxidation ofn-butane to maleic anhydride was studied. NH3-TPD, XRD, XPS, IRand fixed bed reactor were used for this purpose. For the catalysts withx<0.10, the surface Lewis acidity and Bronsted acidity were enhanced,and the conversion of n-butane and the selectivity for maleic anhydridewere increased. The maleic anhydride yield showed a maximum for catalyst with x= 0.050 and then decreased with the increase of x.
基金
河北省自然科学基金
北京中关村地区测试中心资助
关键词
磷钒催化剂
催化剂性能
镧
lanthanum,phosphorus-vanadium catalysts, n-butane,selective oxidation, maleic anhydride
