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    Cobalt-substituted chromium oxide compositions, their preparation, and their use as catalysts and catalyst precursors
    10.
    发明申请
    Cobalt-substituted chromium oxide compositions, their preparation, and their use as catalysts and catalyst precursors 有权
    钴取代的氧化铬组合物，它们的制备及其作为催化剂和催化剂前体的用途

    公开(公告)号：US20050228202A1

    公开(公告)日：2005-10-13

    申请号：US10523228

    申请日：2003-08-21

    申请人： Mario Nappa ,  Velliyur Nott Rao ,  H. Rosenfeld ,  Shekhar Subramoney ,  Munirpallam Subramanian ,  Allen Sievert

    发明人： Mario Nappa ,  Velliyur Nott Rao ,  H. Rosenfeld ,  Shekhar Subramoney ,  Munirpallam Subramanian ,  Allen Sievert

    IPC分类号： C01G37/02 ,  B01J23/26 ,  B01J23/86 ,  B01J27/06 ,  B01J27/132 ,  B01J35/00 ,  B01J35/10 ,  B01J37/02 ,  B01J37/03 ,  C07B39/00 ,  C07B61/00 ,  C07C17/00 ,  C07C17/08 ,  C07C17/10 ,  C07C17/20 ,  C07C17/21 ,  C07C17/23 ,  C07C17/25 ,  C07C17/358 ,  C07C17/37 ,  C07C19/08 ,  C07C21/18

    CPC分类号： C07C17/21 ,  B01J23/864 ,  B01J35/002 ,  B01J35/1014 ,  B01J37/0236 ,  B01J37/03 ,  C07C17/00 ,  C07C17/08 ,  C07C17/10 ,  C07C17/20 ,  C07C17/206 ,  C07C17/23 ,  C07C17/25 ,  C07C17/358 ,  C07C17/37 ,  C07C21/18 ,  C07C21/04 ,  C07C19/08 ,  C07C21/06 ,  C07C19/12 ,  C07C19/10

    摘要： A crystalline alpha-chromium oxide where from about 0.05 atom % to about 6 atom % of the chromium atoms in the alpha-chromium oxide lattice are replaced by trivalent cobalt (Co+3) atoms is disclosed. Also disclosed is a chromium-containing catalyst composition comprising as a chromium-containing component the crystalline cobalt-substituted alpha-chromium oxide; and a method for preparing a composition comprising the crystalline cobalt-substituted alpha-chromium oxide. The method involves (a) co-precipitating a solid by adding ammonium hydroxide to an aqueous solution of a soluble cobalt salt and a soluble trivalent chromium salt that contains at least three moles of nitrate per mole of chromium in the solution and has a cobalt concentration of from about 0.05 mole % to about 6 mole % of the total concentration of cobalt and chromium in the solution; and after at least three moles E of ammonium per mole of chromium in the solution has been added to the solution, (b) collecting the co-precipitated solid formed in (a); (c) drying the collected solid; and (d) calcining the dried solid. Also disclosed is a chromium-containing catalyst composition comprising a chromium-containing component prepared by treating the crystalline cobalt-substituted alpha-chromium oxide with a fluorinating agent; and a process for changing the fluorine distribution (i.e., content and/or arrangement) in a hydrocarbon or halogenated hydrocarbon in the presence of a catalyst. The process involves using as the catalyst a composition comprising the crystalline cobalt-substituted alpha-chromium oxide and/or the treated cobalt-substituted alpha-chromium oxide.

    摘要翻译： 公开了一种结晶α-Cr氧化物，其中α-Cr氧化物晶格中约0.05原子％至约6原子％的铬原子被三价钴（Co + O 3+）原子所取代。 还公开了含铬催化剂组合物，其包含结晶钴取代的α-氧化铬作为含铬组分; 以及制备包含结晶钴取代的α-氧化铬的组合物的方法。 该方法包括（a）通过向可溶性钴盐和可溶性三价铬盐的水溶液中加入氢氧化铵共沉淀固体，该溶液在溶液中每摩尔铬含有至少三摩尔硝酸盐，并且具有钴浓度 为溶液中钴和铬的总浓度的约0.05摩尔％至约6摩尔％ 并且在溶液中每摩尔铬至少三摩尔E之后的铵加入到溶液中，（b）收集（a）中形成的共沉淀固体; （c）干燥收集的固体; 和（d）煅烧干燥的固体。 还公开了一种含铬催化剂组合物，其包含通过用氟化剂处理结晶钴取代的α-氧化铬制备的含铬组分; 以及在催化剂存在下改变烃或卤代烃中的氟分布（即含量和/或排列）的方法。 该方法包括使用包含结晶钴取代的α-氧化铬和/或经处理的钴取代的α-氧化铬的组合物作为催化剂。