Process for recovering ruthenium from used ruthenium oxide-comprising catalysts
    3.
    发明授权
    Process for recovering ruthenium from used ruthenium oxide-comprising catalysts 有权
    用于从使用的含氧化钌催化剂中回收钌的方法

    公开(公告)号:US08252253B2

    公开(公告)日:2012-08-28

    申请号:US13142915

    申请日:2009-12-28

    IPC分类号: C01G55/00

    摘要: The invention relates to a process for recovering ruthenium from a used ruthenium-comprising catalyst which comprises ruthenium as ruthenium oxide on a support material which is not readily soluble in mineral acid, which comprises the steps: a) the ruthenium oxide-comprising catalyst is reduced in a gas stream comprising hydrogen chloride and, if appropriate, an inert gas at a temperature of from 300 to 500° C.; b) the reduced catalyst from step a) comprising metallic ruthenium on the sparingly soluble support material is treated with hydrochloric acid in the presence of an oxygen-comprising gas, with the metallic ruthenium present on the support being dissolved as ruthenium(III) chloride and obtained as an aqueous ruthenium(III) chloride solution; c) if appropriate, the ruthenium(III) chloride solution from step b) is worked up further.

    摘要翻译: 本发明涉及一种用于从使用的含钌催化剂中回收钌的方法,该催化剂在不易溶于无机酸的载体材料上包含钌作为氧化钌,其包括以下步骤:a)将含氧化钌催化剂还原 在包含氯化氢的气流中,以及如果合适的话,在300-500℃的温度下是惰性气体。 b)在含有气体的气体存在下用盐酸处理在微溶性载体材料上的包含金属钌的步骤a)的还原催化剂,载体上存在的金属钌以氯化钌(III)的形式溶解, 作为氯化钌水溶液得到; c)如果合适,将步骤b)的氯化钌(III)溶液进一步处理。

    CATALYST COMPRISING RUTHENIUM AND SILVER AND/OR CALCIUM FOR THE OXIDATION OF HYDROGEN CHLORIDE
    4.
    发明申请
    CATALYST COMPRISING RUTHENIUM AND SILVER AND/OR CALCIUM FOR THE OXIDATION OF HYDROGEN CHLORIDE 有权
    包含氢氧化物氯化物的金属和银和/或钙的催化剂

    公开(公告)号:US20120027665A1

    公开(公告)日:2012-02-02

    申请号:US13148859

    申请日:2010-02-25

    摘要: Catalyst comprising ruthenium on a support for the catalytic oxidation of hydrogen chloride by means of oxygen to form chlorine, wherein the catalyst comprises from 0.01 to 10% by weight of silver and/or calcium as dopant.The support preferably consists essentially of alpha-aluminum oxide.The catalyst preferably comprises a) from 0.1 to 10% by weight of ruthenium, b) from 0.01 to 5% by weight of silver and/or from 0.01 to 5% by weight of calcium, c) from 0 to 5% by weight of one or more alkaline earth metals, d) from 0 to 5% by weight of one or more alkali metals, e) from 0 to 5% by weight of one or more rare earth metals, f) from 0 to 5% by weight of one or more further metals selected from the group consisting of nickel, palladium, platinum, iridium and rhenium, in each case based on the total weight of the catalyst.

    摘要翻译: 催化剂在载体上包含钌,用于通过氧气催化氧化氯化氢以形成氯,其中催化剂包含0.01至10重量%的作为掺杂剂的银和/或钙。 载体优选基本上由α-氧化铝组成。 催化剂优选包含a)0.1至10重量%的钌,b)0.01至5重量%的银和/或0.01至5重量%的钙,c)0至5重量%的 一种或多种碱土金属,d)0-5重量%的一种或多种碱金属,e)0-5重量%的一种或多种稀土金属,f)0-5重量% 一种或多种选自镍,钯,铂,铱和铼的其它金属,在每种情况下都是基于催化剂的总重量。

    PROCESS FOR RECOVERING RUTHENIUM FROM USED RUTHENIUM OXIDE-COMPRISING CATALYSTS
    7.
    发明申请
    PROCESS FOR RECOVERING RUTHENIUM FROM USED RUTHENIUM OXIDE-COMPRISING CATALYSTS 有权
    从使用的含氧化钌催化剂中回收钌的方法

    公开(公告)号:US20110286898A1

    公开(公告)日:2011-11-24

    申请号:US13142915

    申请日:2009-12-28

    IPC分类号: C01G55/00

    摘要: The invention relates to a process for recovering ruthenium from a used ruthenium-comprising catalyst which comprises ruthenium as ruthenium oxide on a support material which is not readily soluble in mineral acid, which comprises the steps:a) the ruthenium oxide-comprising catalyst is reduced in a gas stream comprising hydrogen chloride and, if appropriate, an inert gas at a temperature of from 300 to 500° C.;b) the reduced catalyst from step a) comprising metallic ruthenium on the sparingly soluble support material is treated with hydrochloric acid in the presence of an oxygen-comprising gas, with the metallic ruthenium present on the support being dissolved as ruthenium(III) chloride and obtained as an aqueous ruthenium(III) chloride solution;c) if appropriate, the ruthenium(III) chloride solution from step b) is worked up further.

    摘要翻译: 本发明涉及一种用于从使用的含钌催化剂中回收钌的方法,该催化剂在不易溶于无机酸的载体材料上包含钌作为氧化钌,其包括以下步骤:a)将含氧化钌催化剂还原 在包含氯化氢的气流中,以及如果合适的话,在300-500℃的温度下是惰性气体。 b)在含有气体的气体存在下用盐酸处理在微溶性载体材料上的包含金属钌的步骤a)的还原催化剂,载体上存在的金属钌以氯化钌(III)的形式溶解, 作为氯化钌水溶液得到; c)如果合适,将步骤b)的氯化钌(III)溶液进一步处理。

    CATALYST COMPRISING RUTHENIUM AND NICKEL FOR THE OXIDATION OF HYDROGEN CHLORIDE
    8.
    发明申请
    CATALYST COMPRISING RUTHENIUM AND NICKEL FOR THE OXIDATION OF HYDROGEN CHLORIDE 审中-公开
    包含氢氧化氯化物的钌和镍的催化剂

    公开(公告)号:US20110268649A1

    公开(公告)日:2011-11-03

    申请号:US13142462

    申请日:2009-12-22

    IPC分类号: C01B7/04

    摘要: Catalyst for gas-phase reactions which has a high mechanical stability and comprises one or more active metals on a support comprising aluminum oxide as support material, wherein the aluminum oxide component of the support consists essentially of alpha-aluminum oxide.Particularly preferred catalysts according to the invention comprise a) from 0.001 to 10% by weight of ruthenium, copper and/or gold, b) from 0 to 5% by weight of one or more alkaline earth metals, c) from 0 to 5% by weight of one or more alkali metals, d) from 0 to 10% by weight of one or more rare earth metals, e) from 0 to 10% by weight of one or more further metals selected from the group consisting of palladium, platinum, iridium and rhenium, in each case based on the total weight of the catalyst, on the alpha-Al2O3 support. The catalysts are preferably used in the oxidation of hydrogen chloride (Deacon reaction).

    摘要翻译: 用于气相反应的催化剂,其具有高机械稳定性并且在包含氧化铝作为载体材料的载体上包含一种或多种活性金属,其中载体的氧化铝组分基本上由α-氧化铝组成。 根据本发明的特别优选的催化剂包含a)0.001至10重量%的钌,铜和/或金,b)0至5重量%的一种或多种碱土金属,c)0至5% 的一种或多种碱金属,d)0至10重量%的一种或多种稀土金属,e)0至10重量%的一种或多种另外的金属,其选自钯,铂 ,铱和铼,在每种情况下,基于催化剂的总重量,在α-Al 2 O 3载体上。 催化剂优选用于氯化氢的氧化(Deacon反应)。

    METHOD FOR THE PRODUCTION OF CHLORINE
    10.
    发明申请
    METHOD FOR THE PRODUCTION OF CHLORINE 审中-公开
    氯仿生产方法

    公开(公告)号:US20090304572A1

    公开(公告)日:2009-12-10

    申请号:US12162368

    申请日:2007-01-26

    IPC分类号: C01B7/04

    CPC分类号: C01B7/04 C01B7/0743

    摘要: Process for preparing chlorine from hydrogen chloride, which comprises the steps: a) feeding of a stream a1 comprising hydrogen chloride and of a stream a2 comprising oxygen into an oxidation zone and catalytic oxidation of hydrogen chloride to chlorine, giving a product gas stream a3 comprising chlorine, water, oxygen, carbon dioxide and inert gases; b) contacting of the product gas stream a3 with aqueous hydrochloric acid I in a phase contact apparatus and partial separation of water and of hydrogen chloride from the stream a3, leaving a gas stream b comprising hydrogen chloride, chlorine, water, oxygen, carbon dioxide and possibly inert gases, with at least 5% of the hydrogen chloride comprised in the stream a3 remaining in the gas stream b; c) drying of the gas stream b) to leave a gas stream c which is substantially free of water and comprises hydrogen chloride, chlorine, oxygen, carbon dioxide and possibly inert gases; d) partial liquefaction of the gas stream c by compression and cooling, giving an at least partially liquefied stream d; e) gas/liquid separation of the stream d into a gas stream e1 comprising chlorine, oxygen, carbon dioxide, hydrogen chloride and possibly inert gases and a liquid stream e2 comprising hydrogen chloride, chlorine, oxygen and carbon dioxide and, if appropriate, recirculation of at least part of the gas stream e1 to step a); f) separation of the liquid stream e2 into a chlorine stream f1 and a stream f2 consisting essentially of hydrogen chloride, oxygen and carbon dioxide by distillation in a column, with part of the hydrogen chloride condensing at the top of the column and running back as runback into the column, as a result of which a stream f2 having a chlorine content of

    摘要翻译: 从氯化氢制备氯的方法,其包括以下步骤:a)将包含氯化氢的流a1和包含氧的料流a1进料到氧化区中并将氯化氢催化氧化成氯,得到产物气流a3,其包含 氯,水,氧,二氧化碳和惰性气体; b)在相位接触装置中将产物气流a3与盐酸I水溶液接触,并从流a3中部分分离水和氯化氢,留下包含氯化氢,氯,水,氧气,二氧化碳的气流b 和可能的惰性气体,其中包含在流a3中的至少5%的氯化氢保留在气流b中; c)干燥气流b)以留下基本上不含水的气流c,并包含氯化氢,氯气,氧气,二氧化碳和可能的惰性气体; d)压缩和冷却气流c的部分液化,给出至少部分液化的流d; e)将气流d气体/液体分离成包含氯气,氧气,二氧化碳,氯化氢和可能的惰性气体的气体流e1和包含氯化氢,氯气,氧气和二氧化碳的液体流e2,如果合适的话,再循环 的气流e1至步骤a)的至少一部分; f)通过在柱中蒸馏将液体流e2分离成氯流f1和基本上由氯化氢,氧气和二氧化碳组成的物流f2,其中一部分氯化氢在塔的顶部冷凝并回流为 反应到塔中,结果得到氯含量<1重量%的料流f2。