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    Process for recovering ruthenium from used ruthenium oxide-comprising catalysts
    6.
    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

    申请人： Guido Henze ,  Heiko Urtel ,  Martin Sesing ,  Martin Karches

    发明人： Guido Henze ,  Heiko Urtel ,  Martin Sesing ,  Martin Karches

    IPC分类号： C01G55/00

    CPC分类号： C22B7/007 ,  C22B3/10 ,  C22B5/12 ,  C22B7/002 ,  C22B7/009 ,  C22B11/026 ,  C22B11/048 ,  Y02P10/214 ,  Y02P10/234

    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
    7.
    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

    申请人： Guido Henze ,  Heiko Urtel ,  Martin Sesing ,  Martin Karches

    发明人： Guido Henze ,  Heiko Urtel ,  Martin Sesing ,  Martin Karches

    IPC分类号： C01B7/04 ,  B01J23/58 ,  B01J23/656 ,  B01J23/89 ,  B01J23/68 ,  B01J23/50 ,  B01J21/02

    CPC分类号： B01J23/50 ,  B01J21/04 ,  B01J23/58 ,  B01J23/66 ,  B01J37/0009 ,  B01J37/0201 ,  B01J37/0205 ,  C01B7/04

    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。