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    • 8. 发明申请
    • METHOD FOR PRODUCING SHELL CATALYSTS FOR THE CATALYTIC VAPOR-PHASE OXIDATION OF AROMATIC HYDROCARBONS AND CATALYSTS OBTAINED IN SUCH A MANNER
    • 用于生产壳催化剂用于芳烃的气相催化氧化和SO获得的催化剂
    • WO99062637A1
    • 1999-12-09
    • PCT/EP1999/003828
    • 1999-06-02
    • B01J23/22B01J27/198B01J37/02C07C51/265C07C51/31C07C63/16
    • B01J37/0232B01J23/22B01J37/0219B01J37/0223C07C51/265Y10T428/31935C07C63/16
    • The invention relates to a method for producing shell catalysts for the catalytic vapor-phase oxidation of aromatic carboxylic acids and/or carboxylic acid anhydrides comprised of a supporting core and of catalytically active metal oxides which are deposited in a shell-shaped manner on said supporting core. The inventive catalysts are obtained by spraying an aqueous active mass suspension, said suspension containing the active metal oxides, at higher temperatures onto the hot supporting material which has a temperature ranging from 50 to 450 DEG C. The aqueous active mass suspension contains 1 to 10 wt. %, with regard to the solid content of the active mass suspension, of a binding agent comprised of A) a polymerizate obtained by radical polymerization, containing 5 to 100 wt. % of monomers (a) in the form of ethylenically unsaturated acid anhydrides or ethylenically unsaturated dicarboxylic acids whose carboxyl groups can form an anhydride and containing 0 to 95 wt. % monoethylenically unsaturated monomers (b) with the provision that the monomers (a) and (b) comprise, on average, a maximum of 6 carbon atoms which are not functionalized with groups containing oxygen, and of B) an alkanolamine having at least 2 OH groups, a maximum of 2 nitrogen atoms and a maximum of 8 C-atoms, whereby the weight ratio A:B ranges from 1:0.05 to 1:1.
    • 一种制备涂覆的催化剂的芳族羧酸和/或羧酸酐的催化气相氧化,其由支撑芯和它杯状在50至450℃的热水在更高的温度施加催化活性的金属氧化物,通过喷涂含有含水活性材料悬浮液的活性金属氧化物得到的处理 支撑材料,其中含水活性材料悬浮液1〜10重量%,基于活性材料悬浮液的固体含量,粘合剂包括,由通过含有5自由基聚合的聚合物而获得的值的a)至100重量的单体的%(A)中 的烯属不饱和酸的酸酐或烯属不饱和二羧酸的形式,其可以Carbonxylgruppen形成酸酐和0至95重量的单烯属不饱和单体(b)的%,条件是单体(a)和(b)的平均 至多6个碳原子,不包含氧的基团官能化包括和B)具有至少2个OH基团,至多2个氮原子和至多8个碳原子的链烷醇胺,其中所述重量比A:B 1:0.05至1: 1。