摘要:
A method of preparing a V.sub.a Sb.sub.b M.sub.m N.sub.n O.sub.x catalyst useful in the ammoxidation of a C.sub.2 -C.sub.5 hydrocarbon to its corresponding .alpha., .beta. unsaturated nitrile comprising heating an aqueous mixture comprising V.sub.2 O.sub.5 and Sb.sub.2 O.sub.3 at a temperature above about 100.degree. to 250.degree. C., preferably 110.degree. to 175.degree. C., most preferably 120.degree. to 160.degree. C., under autogenous pressure with agitation to form a catalyst precursor, drying the catalyst precursor and calcining the catalyst precursor to form the finished catalyst.
摘要翻译:制备可用于将C2-C5烃氨氧化成其相应的α,β不饱和腈的VaSbbMmNnOx催化剂的方法,包括在高于约100℃至250℃,优选110℃的温度下加热包含V 2 O 5和Sb 2 O 3的含水混合物 至175℃,最优选120℃至160℃,在自生压力下搅拌以形成催化剂前体,干燥催化剂前体并煅烧催化剂前体以形成最终催化剂。
摘要:
A process for the preparation of a fluid bed vinyl acetate (VAM) catalyst comprising impregnating a support comprising a mixture of substantially inert microspheroidal particles with a solution comprising a metal salt of Pd and M, wherein M comprises Ba, Cd, Au, La, Nb, Ce, Zn, Pb, Ca, Sr, Sb or mixtures thereof, reducing the metal salts to form a deposit of Pd and M on the support surface and impregnating the support with at least one alkali metal salt. At least 50% of the particles used for the microspheroidal support have a particle size below 105 microns.
摘要:
A process for the preparation of a fluid bed vinyl acetate (VAM) catalyst comprising impregnating a support comprising a mixture of substantially inert microspheroidal particles with a solution comprising a metal salt of Pd and M, wherein M comprises Ba, Cd, Au, La, Nb, Ce, Zn, Pb, Ca, Sr, Sb or mixtures thereof, reducing the metal salts to form a deposit of Pd and M on the support surface and impregnating the support with at least one alkali metal salt. At least 50% of the particles used for the microspheroidal support have a particle size below 105 microns.