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    • 6. 发明申请
    • TREATMENT TO IMPROVE THE DURABILITY OF A HYDRODECHLORINATION CATALYST AND CATALYST
    • 处理提高氢化催化剂和催化剂的耐久性
    • WO1997020629A1
    • 1997-06-12
    • PCT/EP1996005585
    • 1996-12-03
    • AKZO NOBEL N.V.
    • AKZO NOBEL N.V.ZHANG, Zongchao
    • B01J23/40
    • C07C17/23B01J23/58B01J27/13B01J37/22B01J37/24Y10S502/503Y10S502/504C07C19/04
    • The durability of a supported noble metal hydrodechlorination catalyst can be improved by (1) treating the supported catalyst, which comprises support and catalytic noble metal, with a non-elemental halide compound, which is not a mineral acid (such as an alkali metal halide, an ammonium halide, an alkaline earth metal halide, and/or a halogenated hydrocarbon); and (2) then using the treated catalyst in a hydrodechlorination reaction. Suitable treatment compounds include ammonium chloride, lithium chloride, or a chlorinated hydrocarbon. The treated catalyst is a novel composition of matter comprising at least one platinum group metal supported by an oxidic support wherein the metal, which is in the zero valent state, predominantly resides adjacent the surface of the support and is predominantly visible under a microscope having a resolution of about 5 ANGSTROM .
    • 负载型贵金属加氢脱氯催化剂的耐久性可以通过(1)用不含无机酸(例如碱金属卤化物)的非元素卤化物处理负载催化剂(包括载体和催化剂贵金属)来改善 ,卤化铵,碱土金属卤化物和/或卤代烃); 和(2)然后在加氢脱氯反应中使用经处理的催化剂。 合适的处理化合物包括氯化铵,氯化锂或氯化烃。 经处理的催化剂是包含至少一种由氧化载体负载的铂族金属的新物质组合物,其中处于零价态的金属主要位于载体表面附近,并且主要在具有 分辨率约5 ANGSTROM。