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    Rhodium catalyst and method for preparing the same
    2.
    发明授权
    Rhodium catalyst and method for preparing the same 失效
    铑催化剂及其制备方法

    公开(公告)号：US4420420A

    公开(公告)日：1983-12-13

    申请号：US398181

    申请日：1982-07-14

    申请人： Yukimitsu Mita ,  Ken-ichi Sano ,  Shinya Matsuhira ,  Tetsuo Nakajo

    发明人： Yukimitsu Mita ,  Ken-ichi Sano ,  Shinya Matsuhira ,  Tetsuo Nakajo

    IPC分类号： B01D53/86 ,  B01J21/06 ,  B01J23/46 ,  B01J37/03

    CPC分类号： B01D53/86 ,  B01J23/464 ,  B01J21/063 ,  B01J35/008 ,  B01J37/03

    摘要： A rhodium catalyst containing supported rhodium metal omnipresent in the surface layer or in the neighborhood of the surface layer of the particles of a silica or titania type support is presented. This catalyst is prepared by a method (i) in which the support is dipped into an aqueous solution of a water-soluble rhodium salt previously adjusted to pH of at least 10, followed by the drying and reduction, or a method (ii) in which the support is first dipped into an aqueous solution of a water-soluble rhodium salt having a pH of 1 or less and, then, dipped into an aqueous alkaline solution containing an alkaline compound in an amount sufficient to neutralize the acid impregnated in the support and also sufficient to convert the rhodium salt impregnated in the support into rhodium hydroxide, followed by the drying and reduction.

    摘要翻译： 本发明提供了一种铑催化剂，该催化剂含有在二氧化硅或二氧化钛载体的表面层或表层附近无与伦比的负载铑金属。 该催化剂通过以下方法制备：（i）其中将载体浸入预先调节至pH至少为10的水溶性铑盐水溶液中，随后进行干燥和还原，或者 首先将载体浸渍到pH为1以下的水溶性铑盐的水溶液中，然后浸渍到含有碱性化合物的碱性水溶液中，其量足以中和浸渍在载体中的酸 并且还足以将浸渍在载体中的铑盐转化为氢氧化铑，然后进行干燥和还原。

    Rhodium catalyst and method for preparing the same
    3.
    发明授权
    Rhodium catalyst and method for preparing the same 失效
    铑催化剂及其制备方法

    公开(公告)号：US4376724A

    公开(公告)日：1983-03-15

    申请号：US254074

    申请日：1981-04-14

    申请人： Yukimitsu Mita ,  Ken-ichi Sano ,  Shinya Matsuhira ,  Tetsuo Nakajo

    发明人： Yukimitsu Mita ,  Ken-ichi Sano ,  Shinya Matsuhira ,  Tetsuo Nakajo

    IPC分类号： B01D53/86 ,  B01J21/06 ,  B01J23/46 ,  B01J37/03

    CPC分类号： B01D53/86 ,  B01J23/464 ,  B01J21/063 ,  B01J35/008 ,  B01J37/03

    摘要： A rhodium catalyst containing supported rhodium metal omnipresent in the surface layer or in the neighborhood of the surface layer of the particles of a silica or titania type support is presented. This catalyst is prepared by a method (i) in which the support is dipped into an aqueous solution of a water-soluble rhodium salt previously adjusted to a pH of at least 10, followed by the drying and reduction, or a method (ii) in which the support is first dipped into an aqueous solution of a water-soluble rhodium salt having a pH of 1 or less and, then, dipped into an aqueous alkaline solution containing an alkaline compound in an amount sufficient to neutralize the acid impregnated in the support and also sufficient to convert the rhodium salt impregnated in the support into rhodium hydroxide, followed by the drying and reduction.

    摘要翻译： 本发明提供了一种铑催化剂，该催化剂含有在二氧化硅或二氧化钛载体的表面层或表层附近无与伦比的负载铑金属。 该催化剂通过以下方法制备：（i）其中将载体浸入预先调节至至少10的pH的水溶性铑盐水溶液中，随后进行干燥和还原，或者（ii） 其中将载体首先浸入pH为1或更低的水溶性铑盐的水溶液中，然后浸入含有碱性化合物的碱性水溶液中，其量足以中和浸渍在水中的酸 并且还足以将浸渍在载体中的铑盐转化为氢氧化铑，然后进行干燥和还原。