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    • 2. 发明公开
    • 증진된 멀티-금속 산화물 촉매
    • 促进的多金属氧化物催化剂
    • KR1020020082736A
    • 2002-10-31
    • KR1020010066822
    • 2001-10-29
    • 롬 앤드 하스 캄파니
    • 보건쥬니어레오나르드에드워드
    • B01J23/887
    • C07C253/24B01J23/002B01J23/22B01J23/28B01J27/0576B01J2523/00C07C51/215Y02P20/52Y10S502/511C07C57/04C07C255/08B01J2523/55B01J2523/56B01J2523/63B01J2523/64B01J2523/68B01J2523/54
    • PURPOSE: A promoted multi-metal oxide catalyst is useful for the vapor phase oxidation of an alkane, or a mixture of an alkane and an alkene, to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane, or a mixture of an alkane and an alkene, to an unsaturated nitrile. CONSTITUTION: A process for producing an unsaturated carboxylic acid comprises the steps of subjecting an alkane or a mixture of an alkane and an alkene to a vapor phase catalytic oxidation reaction in the presence of a catalyst comprising a mixed metal oxide having the empirical formula: MoaVbNcXdZeOf, wherein N is at least one element selected from the group consisting of Te, Sb, Sn, Ge and Bi, X is at least one element selected from the group consisting of Nb, Ta, Ti, Al, Zr, Cr, Mn, Fe, Ru, Co, Rh, Ni, Pt, B, In, As, Li, Na, K, Rb, Cs, Fr, Be, Mg, Ca, Sr, Ba, Hf, Pb, P, Pm, Eu, Gd, Dy, Ho, Er, Tm, Yb, Lu, Sc, Au, Ag, Pd, Ga, Pr, Re, Ir, Nd, Y, Sm, Tb, W, Ce, Cu and Zn, and Z is selected from the group consisting Se and Bi; and wherein, when a=1, b=0.01 to 1.0, c=0.0 to 1.0, d=0.01 to 1.0, e=0.01 to 0.1 and f is dependent on the oxidation state of the other elements; with the proviso that, when Z is Se, Sb and Ga are not simultaneously present in the mixed metal oxide.
    • 目的:促进的多金属氧化物催化剂可用于将烷烃或烷烃和烯烃的混合物气相氧化成不饱和羧酸,并用于烷烃或其混合物的气相氨氧化 烷烃和烯烃,到不饱和腈。 构成:制备不饱和羧酸的方法包括以下步骤:在催化剂存在下,使烷烃或烷烃和烯烃的混合物进行气相催化氧化反应,所述催化剂包含具有以下经验式的混合金属氧化物:MoaVbNcXdZeOf 其中,N为选自Te,Sb,Sn,Ge和Bi中的至少一种元素,X为选自Nb,Ta,Ti,Al,Zr,Cr,Mn, Fe,Ru,Co,Rh,Ni,Pt,B,In,As,Li,Na,K,Rb,Cs,Fr,Be,Mg,Ca,Sr,Ba,Hf,Pb,P,Pm, Gd,Dy,Ho,Er,Tm,Yb,Lu,Sc,Au,Ag,Pd,Ga,Pr,Re,Ir,Nd,Y,Sm,Tb,W,Ce,Cu和Zn, 从Se和Bi组成; 其中当a = 1时,b = 0.01〜1.0,c = 0.0〜1.0,d = 0.01〜1.0,e = 0.01〜0.1,f取决于其他元素的氧化态; 条件是当Z是Se时,Sb和Ga不同时存在于混合金属氧化物中。