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    • 36. 发明授权
    • In situ modification of molybdenum-based catalysts
    • 钼基催化剂的原位改性
    • US07576232B2
    • 2009-08-18
    • US11415565
    • 2006-05-02
    • Michael J. SeelyChristos Paparizos
    • Michael J. SeelyChristos Paparizos
    • C07C253/00
    • C07C253/26B01J23/002B01J23/28B01J23/8876B01J35/0006B01J2523/00Y02P20/52B01J2523/11B01J2523/68B01J2523/13B01J2523/15B01J2523/14B01J2523/12C07C255/08
    • A process for the conversion of a hydrocarbon selected from the group consisting of propylene, isobutylene, propane, isobutane or mixtures thereof, to acrylonitrile, methacrylonitrile, or mixtures thereof, the process comprising the step of reacting in the vapor phase at an elevated temperature and pressure said hydrocarbon with a molecular oxygen-containing gas and ammonia, in the presence of a molybdenum-based ammoxidation catalyst and a catalyst modifier, wherein said catalyst modifier comprises a molybdate or a polymolybdate of at least one element M selected from the group consisting of cesium, rubidium, potassium, sodium, thallium, lithium, nickel, cobalt, iron, chromium, copper, magnesium, manganese, cerium and phosporus, and wherein the ratio of the M elements to Mo in the molybdate or polymolybdate is greater than the ratio for these M elements to Mo in the molybdenum-based catalyst. The catalyst modifier is useful in modifying the performance of molybdenum-based catalyst and inhibiting molybdenum oxide loss for such catalysts.
    • 一种将选自丙烯,异丁烯,丙烷,异丁烷或其混合物的烃转化为丙烯腈,甲基丙烯腈或其混合物的方法,该方法包括在升高的温度下在气相中反应和 在钼基氨氧化催化剂和催化剂改性剂的存在下,用含分子氧的气体和氨压力所述烃,其中所述催化剂改性剂包含选自以下的至少一种元素M的钼酸盐或多钼酸盐: 铯,铷,钾,钠,铊,锂,镍,钴,铁,铬,铜,镁,锰,铈和磷,并且其中钼酸盐或多钼酸盐中的M元素与Mo的比例大于 对于这些M元素在钼基催化剂中的Mo。 催化剂改性剂可用于改性钼基催化剂的性能并抑制这种催化剂的氧化钼损失。
    • 37. 发明授权
    • Catalyst for the manufacture of acrylonitrile
    • 用于制造丙烯腈的催化剂
    • US07071140B2
    • 2006-07-04
    • US10717130
    • 2003-11-18
    • Christos PaparizosStephen C. JevneMichael J. Seely
    • Christos PaparizosStephen C. JevneMichael J. Seely
    • B01J27/057C07C253/24
    • C07C253/26B01J23/002B01J23/8876B01J23/8878B01J27/1853B01J27/192B01J35/023B01J37/0045B01J37/0081B01J2523/00Y02P20/52B01J2523/11B01J2523/14B01J2523/22B01J2523/3712B01J2523/54B01J2523/67B01J2523/68B01J2523/842B01J2523/845B01J2523/847B01J2523/12B01J2523/51C07C255/08
    • A catalyst comprising a complex of catalytic oxides comprising rubidium, cerium, chromium, iron, bismuth, molybdenum, and at least one of nickel or nickel and cobalt, optionally magnesium, and optionally one of phosphorus, antimony, tellurium, sodium, lithium, potassium, cesium, thallium, boron, germanium, tungsten calcium, wherein the relative ratios of these elements are represented by the following general formula: RbaCebCrcMgdAeFefBigYhMo12Ox wherein A is Ni or the combination of Ni and Co, Y is at least one of P, Sb, Te, Li, Na, K, Cs, Tl, B, Ge, W, Ca, Zn, a rare earth element, or mixtures thereof, a is about 0.01 to about 1, b is about 0.01 to about 3, c is about 0.01 to about 2, d is 0 to about 7, e is about 0.01 to about 10, f is about 0.01 to about 4, g is about 0.05 to about 4, h is 0 to about 3, x is a number determined by the valence requirements of the other elements present, wherein “b”+“c” is greater than “g” and wherein the catalyst is substantially free of manganese, a noble metal and vanadium. The catalyst is useful in processes for the ammoxidation of an olefin selected from the group consisting of propylene, isobutylene or mixtures thereof, to acrylonitrile, methacrylonitrile and mixtures thereof, respectively.
    • 一种催化剂,其包含包含铷,铈,铬,铁,铋,钼以及镍或镍和钴,任选的镁中的至少一种的催化氧化物的复合物,以及任选的磷,锑,碲,钠,锂,钾 ,铯,铊,硼,锗,钨钙,其中这些元素的相对比例由以下通式表示:<?in-line-formula description =“In-line formula”end =“lead”?> Rb 另一方面,C C C &lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt; 其中A为Ni或Ni和Co的组合,Y为P,Sb,Te,Li,Na,K,Cs,Tl,B,Ge,W中的至少一种 ,Ca,Zn,稀土元素或其混合物,a为约0.01至约1,b为约0.01至约3,c为约0.01至约2,d为0至约7,e为约0.01至 约10,f约为0.01 4,g为约0.05至约4,h为0至约3,x为由其它存在的元素的化合价要求确定的数,其中“b”+“c”大于“g”,其中 催化剂基本上不含锰,贵金属和钒。 该催化剂可用于分别选自丙烯,异丁烯或其混合物的烯烃与丙烯腈,甲基丙烯腈及其混合物的氨氧化反应的方法。