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Molybdenum-based complex oxide catalysts; use thereof for producing (meth)acrolein and (meth)acrylic acid
Molybdenum-based complex oxide catalysts; use thereof for producing (meth)acrolein and (meth)acrylic acid
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机译:钼基复合氧化物催化剂;用于生产(甲基)丙烯醛和(甲基)丙烯酸的用途
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摘要
A complex oxide catalyst of formula (1):MoaWbBicFedAeBfCgDhEiOx wherein Mo is molybdenum; W is tungsten; Bi is bismuth; Fe is iron; A is one or more element selected from nickel and coba B is one or more element selected from sodium, potassium, rubidium, cesium and thallium; C is one or more element selected from alkaline earth metals; D is one or more element selected from phosphorus, tellurium, antimony, tin, cerium, lead, niobium, manganese, arsenic, boron and zinc; E is one or more element selected from silicon, aluminium, titanium and zirconium; and O is oxygen; a, b, c, d, e, f, g, h, i and x denote the atomic ratios of Mo, W, Bi, Fe, A, B, C, D, E and O, respectively; such that when a is 12, 0≦b≦ 10, 0c≦10, 0d≦10, 2≦e≦15, 0f≦10, 0≦g≦10, 0≦h≦4 and 0≦i≦30, and x is determined by the degree of oxidation of each of the elements, said catalyst being characterized in that the molar ration of total nitrate anions to molybdenum at the time of catalyst preparation is from 1:1 to 1.8:1.
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机译:式(1)的复合氧化物催化剂:Mo a Sub> W b Sub> Bi c Sub> Fe d Sub> A e Sub> B f Sub> C g Sub> D h Sub> E i Sub> O x Sub>其中Mo是钼; W是钨; Bi是铋;铁是铁。 A是选自镍和钴中的一种或多种元素; B是选自钠,钾,id,铯和th的一种或多种元素; C是选自碱土金属的一种或多种元素; D是选自磷,碲,锑,锡,铈,铅,铌,锰,砷,硼和锌中的一种或多种元素; E是选自硅,铝,钛和锆中的一种或多种元素; O是氧; a,b,c,d,e,f,g,h,i和x分别表示Mo,W,Bi,Fe,A,B,C,D,E和O的原子比;这样,当a为12时,0≤b≤10、0 展开▼