Oxidation of alkanes to unsaturated aldehydes and carboxylic acids using a catalyst containing Mo, V, Te and Nb
    3.
    发明授权
    Oxidation of alkanes to unsaturated aldehydes and carboxylic acids using a catalyst containing Mo, V, Te and Nb 有权
    使用含有Mo,V,Te和Nb的催化剂将烷烃氧化成不饱和醛和羧酸

    公开(公告)号:US06180825B2

    公开(公告)日:2001-01-30

    申请号:US09316007

    申请日:1999-05-21

    IPC分类号: C07C5116

    摘要: A process for preparing a catalyst comprises: admixing metal compounds, at least one of which is an oxygen containing compound, and at least one solvent to form a solution; removing the solvent from the solution to obtain a catalyst precursor; and calcining the catalyst precursor under an inert atmosphere to form a catalyst having the formula AaMmNnXxOo wherein a, m, n, x and o are the molar proportions of A, M, N, X and O, respectively, and o is dependent on the oxidation state of the elements A, M, N and X, wherein A is Mo, W, Fe, Nb, Ta, Zr, Ru or mixtures thereof, M is V, Ce, Cr or mixtures thereof, N is Te, Bi, Sb, Se or mixtures thereof, and X is Nb, Ta, W, Ti, Al, Zr, Cr, Mn, Fe, Ru, Co, Rh, Ni, Pd, Pt, Sb, Bi, B, In, Ce or mixtures thereof. The catalyst is useful for the gas phase oxidation of alkanes to unsaturated aldehydes or carboxylic acids.

    摘要翻译: 制备催化剂的方法包括:将至少一种是含氧化合物的金属化合物和至少一种溶剂混合以形成溶液; 从溶液中除去溶剂,得到催化剂前体; 并在惰性气氛下煅烧催化剂前体以形成具有甲醛的催化剂,m,n,x和o分别是A,M,N,X和O的摩尔比,o取决于氧化态 的元素A,M,N和X,其中A是Mo,W,Fe,Nb,Ta,Zr,Ru或其混合物,M是V,Ce,Cr或其混合物,N是Te,Bi,Sb, Se或其混合物,X为Nb,Ta,W,Ti,Al,Zr,Cr,Mn,Fe,Ru,Co,Rh,Ni,Pd,Pt,Sb,Bi,B,In,Ce或其混合物 。 该催化剂可用于将烷烃气相氧化成不饱和醛或羧酸。