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    • 4. 发明申请
    • Catalyst for the oxidation of a mixed aldehyde feedstock to methacrylic acid and methods for making and using same
    • 用于将混合醛原料氧化成甲基丙烯酸的催化剂及其制备和使用方法
    • US20070021296A1
    • 2007-01-25
    • US11189116
    • 2005-07-25
    • Wugeng LiangScott StevensonAngie McGuffeyJoseph Linzer
    • Wugeng LiangScott StevensonAngie McGuffeyJoseph Linzer
    • B01J27/00
    • B01J37/031B01J21/02B01J23/002B01J2523/00C07C51/235C07C51/252C07C57/04B01J2523/15B01J2523/17B01J2523/51B01J2523/53B01J2523/54B01J2523/55B01J2523/68
    • A heteropolyacid catalyst for oxidation of isobutyraldehyde, methacrolein or mixtures or combinations thereof to methacrylic acid is disclosed where the heteropolyacid catalyst includes at least molybdenum (Mo), phosphorus (P), vanadium (V), and a first component including bismuth (Bi) and/or boron (B). The heteropolyacid catalyst can also optionally include a second component including potassium (K), rubidium (Rb), cesium (Cs), and/or thallium (Tl) and optionally a third component including antimony (Sb), cerium (Ce), niobium (Nb), indium (In), iron (Fe), chromium (Cr), cobalt (Co), nickel (Ni), manganese (Mn), arsenic (As), silver (Ag), zinc (Zn), germanium (Ge), gallium (Ga), zirconium (Zr), magnesium (Mg), barium (Ba), lead (Pb), tin (Sn), titanium (Ti), aluminum (Al), silicon (Si), tantalum (Ta), tungsten (W), and/or lanthanum (La). The heteropolyacid catalyst can also include an ammonium-containing compound designed to increase a value of medium pores in the final heteropolyacid catalyst. A method for oxidizing isobutanal to methacrylic acid using the heteropolyacid catalyst is also disclosed.
    • 公开了用于将异丁醛,异丁烯醛或其混合物或其组合氧化成甲基丙烯酸的杂多酸催化剂,其中杂多酸催化剂至少包括钼(Mo),磷(P),钒(V)和包含铋(Bi) 和/或硼(B)。 杂多酸催化剂还可任选地包括第二组分,包括钾(K),铷(Rb),铯(Cs)和/或铊(Tl)以及任选的第三组分,包括锑(Sb),铈(Ce),铌 (Nb),铟(In),铁(Fe),铬(Cr),钴(Co),镍(Ni),锰(Mn),砷(As),银(Ag),锌(Zn) (Ge),镓(Ga),锆(Zr),镁(Mg),钡(Ba),铅(Pb),锡(Sn),钛(Ti),铝(Al),硅(Si) (Ta),钨(W)和/或镧(La)。 杂多酸催化剂还可以包括设计用于增加最终杂多酸催化剂中介质孔值的含铵化合物。 还公开了使用杂多酸催化剂将异丁醛氧化成甲基丙烯酸的方法。