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22 条记录 (耗时 0.019 秒)

    Catalytic process for the production of acrylonitrile
    2.
    发明授权
    Catalytic process for the production of acrylonitrile 失效
    用于生产丙烯腈的催化工艺

    公开(公告)号：US4058547A

    公开(公告)日：1977-11-15

    申请号：US302882

    申请日：1972-11-01

    申请人： Tatsuo Shiraishi ,  Shinkichi Shimizu ,  Hiroshi Ichihashi

    发明人： Tatsuo Shiraishi ,  Shinkichi Shimizu ,  Hiroshi Ichihashi

    IPC分类号： B01J23/887 ,  B01J27/192 ,  C07C120/14

    CPC分类号： C07C253/26 ,  B01J23/8876 ,  B01J27/192 ,  Y02P20/52

    摘要： In the production of acrylonitrile by a vapor phase reaction of propylene, ammonia and oxygen at an elevated temperature, a process which comprises contacting propylene, ammonia and oxygen with a catalyst composition comprising a catalyst system of the formula: Tl.sub.a P.sub.b Mo.sub.c Fe.sub.d Bi.sub.e X.sub.f O.sub.g wherein X represents one or more of the metals, Ni, Mg and Co, and a, b, c, d, e, f and g represent respectively the relative number of atoms of each component; provided that when c is 12, a is 2 or less, but not 0; b is 0 to 5; d is 0.1 to 5; e is 0.1 to 5; f is 2 to 15; and the value of g depends on the number of the other atoms and is usually from 38.3 to 81.5.

    摘要翻译： 在通过丙烯，氨和氧在升高的温度下的气相反应生产丙烯腈的过程中，包括使丙烯，氨和氧与包含下式催化剂体系的催化剂组合物接触的方法：其中X代表一个或多个 更多的金属，Ni，Mg和Co，以及a，b，c，d，e，f和g分别表示各成分的相对原子数。 条件是当c为12时，a为2或更小，但不为0; b为0〜5; d为0.1〜5; e为0.1〜5; f为2〜15; g的值取决于其他原子的数量，通常为38.3〜81.5。

    Selective removal of nitrogen oxides from waste gases containing sulfur oxides
    8.
    发明授权
    Selective removal of nitrogen oxides from waste gases containing sulfur oxides 失效
    从含硫氧化物的废气中选择性除去氮氧化物

    公开(公告)号：US4075283A

    公开(公告)日：1978-02-21

    申请号：US491760

    申请日：1974-07-25

    申请人： Tatsuo Shiraishi ,  Shinkichi Shimizu ,  Tadashi Shindo

    发明人： Tatsuo Shiraishi ,  Shinkichi Shimizu ,  Tadashi Shindo

    IPC分类号： B01D53/94 ,  B01D53/86 ,  B01J21/04 ,  B01J23/24 ,  B01J23/28 ,  B01J23/30 ,  B01J8/00 ,  C01B21/00

    CPC分类号： B01J23/24 ,  B01D53/8628

    摘要： A process for the selective removal of nitrogen oxides from waste gases containing sulfur oxides as well as nitrogen oxides, which comprises contacting the waste gases with a catalyst comprising active metal oxides consisting of vanadium oxide and at least one of molybdenum oxide and tungsten oxide as a catalytically active component and .alpha.-alumina having a specific surface area of 0.3 to 12 m.sup.2 /g and a pore volume of 0.1 cm.sup.3 /g or more as a carrier wherein the atomic ratio of the vanadium, molybdenum, tungsten and aluminum contained in the carrier alumina isV.sub.12-x-y Mo.sub.x W.sub.y Al.sub.zwherein 0.ltoreq.x.ltoreq.8, 0.ltoreq.y.ltoreq.5, 0.3.ltoreq.x + y.ltoreq.8 and 40.ltoreq.z.ltoreq.480, in the presence of ammonia of 0.3 to 4 mol on the basis of 1 mol of nitrogen oxides contained in the waste gases at a temperature of 150.degree. to 700.degree. C.

    摘要翻译： 一种用于从含有硫氧化物和氮氧化物的废气中选择性除去氮氧化物的方法，其包括使废气与包含由氧化钒和至少一种氧化钼和氧化钨组成的活性金属氧化物的催化剂接触，所述活性金属氧化物作为 催化活性成分和比表面积为0.3〜12m2 / g，孔体积为0.1cm3 / g以上的α-氧化铝作为载体，其中载体中所含的钒，钼，钨和铝的原子比 氧化铝是V12-x-yMoxWyAlz WHEREIN 0

    Process for concurrently treating process waste waters and flue gases from ammonia synthesis process plants
    9.
    发明授权
    Process for concurrently treating process waste waters and flue gases from ammonia synthesis process plants 失效
    同时处理氨合成工艺废水和烟道气的工艺

    公开(公告)号：US3970739A

    公开(公告)日：1976-07-20

    申请号：US530302

    申请日：1974-12-06

    申请人： Tatsuo Shiraishi ,  Hiroshi Fukusen ,  Sachio Oishi ,  Shinkichi Shimizu ,  Hiroyuki Nishikawa ,  Tetsu Wakabayashi

    发明人： Tatsuo Shiraishi ,  Hiroshi Fukusen ,  Sachio Oishi ,  Shinkichi Shimizu ,  Hiroyuki Nishikawa ,  Tetsu Wakabayashi

    IPC分类号： C02F1/20 ,  B01D53/86 ,  C01B3/02 ,  C01C1/04 ,  C02F1/58 ,  C01B21/00

    CPC分类号： B01D53/8628 ,  C01B3/025 ,  C02F1/586 ,  Y10S210/919

    摘要： The process involves stripping ammonium nitrogens and organic materials, as gases, which are present in process waste waters to be discharged from plants wherein gases for use in ammonia synthesis are manufactured by reforming hydrocarbons with steam, decomposing the organic materials selectively in the presence of a catalyst at a temperature of about 120.degree. to 400.degree. C., mixing the remaining gases with the flue gases from said plants so as to provide a gaseous mixture having ammonia therein in an amount of about 0.3 to 10 moles per mole of nitrogen oxides present in the flue gases, reacting the gaseous mixture over a catalyst at a temperature of about 150.degree. to 700.degree. C. and oxidizing the unreacted ammonia, if any, in the presence of a catalyst at a temperature of about 150.degree. to 700.degree. C. to render the nocuous substances innocuous.

    摘要翻译： 该方法包括剥离存在于工艺废水中的铵氮和有机材料，以从工厂排出的工业废气，其中用于氨合成的气体通过用蒸汽重整烃来制造，在有机物的存在下有选择地分解有机材料 催化剂，在约120-400℃的温度下，将剩余的气体与来自所述设备的烟道气混合，以提供其中具有氨的气体混合物，其量为每摩尔存在的氮氧化物约0.3至10摩尔 在烟道气中，在约150-700℃的温度下使催化剂上的气体混合物反应，并在催化剂存在下，在约150-700℃的温度下氧化未反应的氨（如果有的话） 使无害物质无害化。