Catalysts for the preparation of phthalic anhydride
    1.
    发明授权
    Catalysts for the preparation of phthalic anhydride 失效
    催化剂用于制备水性非离子表面活性剂

    公开(公告)号:US3926846A

    公开(公告)日:1975-12-16

    申请号:US40628573

    申请日:1973-10-15

    摘要: A catalyst for the preparation of phthalic anhydride by vapor phase catalytic oxidation of either ortho-xylene or naphthalene with a molecular oxygen-containing gas which comprises a catalytically active substance supported on a porous inert carrier, said catalytically active substance comprising 1 to 20 parts by weight of V2O5 and, correspondingly, 99 to 80 parts by weight of TiO2 and, based on the total weight of the V2O5 and TiO2, 0.02 to 5.0 % by weight of Nb2O5, 0.1 to 5.0 % by weight of P2O5, 0 to 0.25 % by weight of K2O and 0 to 0.5% by weight of Cs2O, the total weight of K2O and Cs2O being at least 0.05 % by weight and optionally 0 to 5.0 % by weight of at least one member selected from the group consisting of rare earth elements, ZnO and Tl2O.

    Catalyst for the preparation of anthraquinone
    2.
    发明授权
    Catalyst for the preparation of anthraquinone 失效
    催化剂制备蒽醌

    公开(公告)号:US3870655A

    公开(公告)日:1975-03-11

    申请号:US32681473

    申请日:1973-01-26

    CPC分类号: B01J23/22

    摘要: A catalyst for the preparation of anthraquinone by vapor phase oxidation of anthracene with a molecular oxygen-containing gas comprising a catalytic material supported on an inert carrier, said catalytic material comprising 100 parts by weight, calculated as titanium dioxide, of titanium, 1 to 45 parts by weight, calculated as vanadium pentoxide, of vanadium, 0.05 to 15 parts by weight, calculated as oxide thereof, of at least two metal oxides selected from the group consisting of Li2O, Na2O, K2O, Rb2O, Cs2O and Tl2O, 0 to 5 parts by weight, calculated as phosphorus pentoxide, of phosphorus and 0 to 5 parts by weight, calculated as niobium pentoxide, of niobium.

    摘要翻译: 一种催化剂,用于通过含有支撑在惰性载体上的催化材料的含分子氧气体气相氧化蒽来制备蒽醌,所述催化材料包含100重量份(以二氧化钛计)钛,1至45 按五氧化二钒计算的钒,以氧化物计0.05至15重量份的选自Li 2 O,Na 2 O,K 2 O,Rb 2 O,Cs 2 O和T 2 O 2中的至少两种金属氧化物,0至 5重量份,以五氧化二磷计算,为磷,0〜5重量份,以五氧化二铌计,为铌。

    Method for the production of noble metal catalysts
    3.
    发明授权
    Method for the production of noble metal catalysts 失效
    贵金属催化剂生产方法

    公开(公告)号:US3897368A

    公开(公告)日:1975-07-29

    申请号:US41994873

    申请日:1973-11-29

    IPC分类号: B01J23/40 B01J37/02 B01J11/08

    CPC分类号: B01J23/40 B01J37/0203

    摘要: Noble metal catalysts are prepared by supporting a noble metal onto a refractory porous inorganic support from an aqueous medium containing a noble metal or a compound thereof in the presence of a nonionic surface active agent of poly(oxyethylene) type having an average molecular weight of at least 500 and subjecting the so treated support to activation.

    摘要翻译: 在贵金属或其化合物的水性介质的存在下,在平均分子量为等于(重量)的聚(氧乙烯)型的非离子表面活性剂的存在下,将贵金属负载在难熔多孔无机载体上, 至少500,并使经过处理的支持体活化。

    Method for the production of exhaust and waste gases purifying catalysts
    4.
    发明授权
    Method for the production of exhaust and waste gases purifying catalysts 失效
    废气和废气净化催化剂的生产方法

    公开(公告)号:US3928239A

    公开(公告)日:1975-12-23

    申请号:US41994373

    申请日:1973-11-29

    摘要: A catalyst used for the purification of exhaust gases from internal combustion engine and waste gases from industrial plants is produced by dissolving an alumina sol with an inorganic acid to form an alumina sol solution, adding thereto a powdered alumina which contains at least 50 % by weight of rho alumina and is capable of forming, upon calcination, an activated alumina to form an alumina slurry, immersing in the alumina slurry a monolithic multicellular chemically inert support, while maintaining said alumina slurry at 0* to 30*C, to deposit an alumina layer on to the surface of said support, aging the alumina layer at a temperature of 50*C or below for at least 30 minutes, drying the alumina layer to form a thin alumina film on the surface of the support, impregnating the so treated support in a noble metal containing solution and activating the so impregnated support.

    摘要翻译: 用于净化来自内燃机和来自工业设备的废气的废气的催化剂是通过将氧化铝溶胶与无机酸溶解以形成氧化铝溶胶溶液来制备的,向其中加入含有至少50重量%的粉末状氧化铝 并且能够在煅烧时形成活性氧化铝以形成氧化铝浆料,将氧化铝浆料浸入氧化铝浆料中,同时将所述氧化铝浆料保持在0至30℃,以沉积氧化铝 层压到所述载体的表面上,在50℃或更低的温度下使氧化铝层老化至少30分钟,干燥氧化铝层以在载体的表面上形成薄的氧化铝膜,浸渍如此处理的载体 在含贵金属的溶液中并活化如此浸渍的载体。