Process for the reduction of carbon monoxide and carbonyl sulfide emissions
    31.
    发明授权
    Process for the reduction of carbon monoxide and carbonyl sulfide emissions 失效
    降低一氧化碳和羰基硫化物排放的方法

    公开(公告)号:US07261870B2

    公开(公告)日:2007-08-28

    申请号:US10463788

    申请日:2003-06-16

    Abstract: Carbon monoxide and carbonyl sulfide emissions are reduced in manufacturing processes, including titanium tetrachloride production processes. Gas is contacted with CO, COS, and an oxygen-containing gas with a suitable catalyst. The catalyst may be a metal oxide catalyst containing bismuth, cobalt and nickel, a xerogel or aerogel catalyst containing Au, Rh, Ru and Co in aluminum oxide/oxyhydroxide matrices, or a supported metal catalyst that contains at least one metal from the group Pd, Rh, Ru and Cu. In the latter case, the catalyst support is contains alumina or carbon. A catalyst composite of Au, Rh, Ru and Cr, and cerium oxide and lanthanum oxide may also be used.

    Abstract translation: 一氧化碳和羰基硫化物的排放在制造过程中减少,包括四氯化钛生产过程。 气体与CO,COS和含氧气体与合适的催化剂接触。 催化剂可以是含有铋,钴和镍的金属氧化物催化剂,在氧化铝/羟基氧化物基质中含有Au,Rh,Ru和Co的干凝胶或气凝胶催化剂,或者载有金属催化剂,其包含至少一种Pd ,Rh,Ru和Cu。 在后一种情况下,催化剂载体包含氧化铝或碳。 还可以使用Au,Rh,Ru和Cr以及氧化铈和氧化镧的催化剂复合物。

    Process for the reduction of carbon monoxide and carbonyl sulfide emissions
    32.
    发明授权
    Process for the reduction of carbon monoxide and carbonyl sulfide emissions 失效
    降低一氧化碳和羰基硫化物排放的方法

    公开(公告)号:US06602819B2

    公开(公告)日:2003-08-05

    申请号:US09754609

    申请日:2001-01-04

    Abstract: Carbon monoxide and carbonyl sulfide emissions are reduced in manufacturing processes, including titanium tetrachloride production processes. Gas contaminated with CO and COS, and an oxygen-containing gas, is contacted with a suitable catalyst. The catalyst may be a metal oxide catalyst containing bismuth, cobalt and nickel, such as metal oxides containing oxides of the formula, (BiaCobNic)yMo1−yOz, where a, b and c are from 0 to 1, y is from 0.01 to 0.75 and z is from 1.125 to 4.875; a xerogel or aerogel catalyst containing Au, Rh, Ru and Co in aluminum oxide/oxyhydroxide matrices, such as those of the formula [(Au1−(w+d)RhwRud)eCofAlO1.5−u(OH)2u]1−(e+f), where w and d are from 0 to 1, e is from 0.001 to 0.2, f is from 0 to 0.2 and u is from 0 to 1.5; or a supported metal catalyst that contains at least one metal from the group Pd, Rh, Ru and Cu. In the latter case, the catalyst support contains alumina or carbon. A catalyst composite of Au, Rh, Ru and Cr, and cerium oxide and lanthanum oxide may also be used, such as a composites containing Au, Rh, Ru and Cr, and cerium oxide and lanthanum oxide of the formula (Au1−(w+d)RhwRud)eCrf(CegLa1−g)1−(e+f)Ov, where w and d are from 0 to 1, e is from 0.001 to 0.2, f is from 0 to 0.2, g is from 0 to 1 and v is from 1.1 to 2.4.

    Abstract translation: 一氧化碳和羰基硫化物的排放在制造过程中减少,包括四氯化钛生产过程。 被CO和COS污染的气体和含氧气体与合适的催化剂接触。 催化剂可以是含有铋,钴和镍的金属氧化物催化剂,例如含有下式的氧化物的金属氧化物(BiaCobNic)yMo1-yOz,其中a,b和c为0至1,y为0.01至0.75 z为1.125〜4.875; 在氧化铝/羟基氧化物基质中含有Au,Rh,Ru和Co的干凝胶或气凝胶催化剂,例如式[(Au1-(w + d)RhwRud)eCofAlO1.5-u(OH)2u] 1-( e + f),其中w和d为0至1,e为0.001至0.2,f为0至0.2,u为0至1.5; 或包含至少一种Pd,Rh,Ru和Cu族金属的负载金属催化剂。 在后一种情况下,催化剂载体包含氧化铝或碳。 还可以使用Au,Rh,Ru和Cr以及氧化铈和氧化镧的催化剂复合物,例如包含Au,Rh,Ru和Cr的复合材料,以及式(Au1-(w))的氧化铈和氧化镧 + d)RhwRud)eCrf(CegLa1-g)1-(e + f)Ov,其中w和d为0至1,e为0.001至0.2,f为0至0.2,g为0至1 v为1.1〜2.4。

    PREPARATION OF EPOXIDES FROM ALKANES USING LANTHANIDE-PROMOTED SILVER CATALYSTS
    33.
    发明申请
    PREPARATION OF EPOXIDES FROM ALKANES USING LANTHANIDE-PROMOTED SILVER CATALYSTS 失效
    使用硼酸盐促进银催化剂从碱处理环氧化物

    公开(公告)号:US20030130552A1

    公开(公告)日:2003-07-10

    申请号:US10346679

    申请日:2003-01-15

    CPC classification number: C07D301/22 B01J23/002 B01J23/66 B01J23/685

    Abstract: A process is provided for use in the conversion of alkanes into alkylene oxides, having particular utility in the conversion of propane to form propylene oxide, using a lanthanide-promoted, supported, silver catalyst prepared via precipitation. A preferred embodiment uses silver nitrate and lanthanum nitrate to form the catalyst on a BaCO3 support.

    Abstract translation: 提供了一种用于将烷烃转化为环氧烷烃的方法,其特别用途是使用通过沉淀制备的镧系元素促进的负载型银催化剂将丙烷转化成环氧丙烷。 优选的实施方案使用硝酸银和硝酸镧在BaCO 3载体上形成催化剂。

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