An improved Sn-antimonate catalyst is claimed for the use in an ammoxidation process in which propylene or isobutylene together with O2 and NH3 in the vapour phase are contacted with the catalyst at elevated temp. to yield the corresp. unsatd. nitrile. The catalyst is a Sn-antimonate oxide complex free of Ti and Fe and of formula AaDbTedSneSbfox. A is one or more from Cu, V, w. or Mo. D is opt. one or more from Bi, Ge, Ce, La, Cr, Mn, Mg, Ca, Co, Ni, Nb, Ta, Ag, Zn, Cd, K, Cs, U, B, P and Eu. a is 0.5-5, b is 0-10, d is 0.1-2, e is 0.1-10, f is greater than 1+b+d+e. x is a no. sufficient to satisfy the valance requirements of the other elements to satisfy the valance reqyirements of the other elemets present. Sn:Sb is 1:5-1:1.1. pref. b is at least 0.001 and D is from Bi, Ge, Ce, La, Cr, Mn, Mg, Co, Ni, Nb, Zn, K and Cs.
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机译：要求改进的锑酸锑催化剂用于氨氧化工艺，其中丙烯或异丁烯与气相中的O 2和NH 3一起在高温下与催化剂接触。产生错误。不满意腈。该催化剂是不含Ti和Fe且式为AaDbTedSneSbfox的Sn-锑氧化物配合物。 A是Cu，V，w中的一个或多个。或Mo. D为选择。 Bi，Ge，Ce，La，Cr，Mn，Mg，Ca，Co，Ni，Nb，Ta，Ag，Zn，Cd，K，Cs，U，B，P和Eu中的一种或多种a为0.5-5，b为0-10，d为0.1-2，e为0.1-10，f大于1 + b + d + e。 x是一个数字。足以满足其他元素的价位要求，以满足存在的其他元素的价位要求。 Sn：Sb为1：5-1：1.1。偏好b至少为0.001，并且D来自Bi，Ge，Ce，La，Cr，Mn，Mg，Co，Ni，Nb，Zn，K和Cs。
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