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    • 1. 发明授权
    • Catalysis for the production of maleic anhydride containing
vanadium-phosphorus oxide with selected promoter elements
    • 用于生产含有选择的启动子元件的含有氧化钒的马来酸酐的催化
    • US5364824A
    • 1994-11-15
    • US986652
    • 1992-12-08
    • William J. AndrewsJerry R. EbnerTimothy R. Felthouse
    • William J. AndrewsJerry R. EbnerTimothy R. Felthouse
    • B01J27/198C07C51/215B01J27/18C07D307/60
    • C07C51/215B01J23/002B01J27/198B01J2523/00
    • A phosphorus vanadium oxide catalyst for the oxidation of a C.sub.4 hydrocarbon. The catalyst comprises a shaped body having a volume, or a fixed bed comprising shaped bodies having an average volume, of at least about 0.02 cc, and contains a promoter selected from among Bi, Sb, Ge, Ti, Zr, La, Ce, Ni, Zn, U, Sn, Si or mixtures thereof. The promoter is present in a proportion that enables the catalyst to have a developed surface area of at least about 28 m.sup.2 /g, and to exhibit a weight/area productivity of at least about 3.5 mg maleic anhydride/m.sup.2 -hr and/or a weight/weight productivity of at least about 100 g maleic anhydride/kg.cat.-hr. when contacted with a gas containing 2.4% by volume n-butane in air, at a gas flow volume to catalyst weight ratio of 2180 cc/g-min., under a pressure of 1.055.times.10.sup.2 -kPa-G, and at a temperature sufficient to maintain a hydrocarbon conversion of 85 mole percent. Methods for the preparation of the catalyst include activation by ANST.
    • 用于氧化C4烃的磷氧化钒催化剂。 催化剂包括具有体积的成形体或包含平均体积至少约0.02cc的成形体的固定床,并且含有选自Bi,Sb,Ge,Ti,Zr,La,Ce, Ni,Zn,U,Sn,Si或其混合物。 促进剂以使得催化剂具有至少约28m 2 / g的显影表面积的比例存在,并且显示出至少约3.5mg马来酸酐/ m 2 -hr的重量/面积生产率和/或 至少约100g马来酸酐/ kg.cat.-hr的重量/重量生产率。 当在空气中与含有2.4体积%正丁烷的气体在气体流量与催化剂重量比为2180cc / g-min的压力下在1.055×102-kPa-G的压力下接触,并且在足够的温度 以保持85%的烃转化率。 制备催化剂的方法包括ANST的活化。