Cobalt-substituted chromium oxide compositions, their preparation, and their use as catalysts and catalyst precursors
    2.
    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

    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。

    1,1,1,3,3-Pentafluorobutane refrigerant or heat transfer fluid compositions comprising hydrofluorocarbon and uses thereof
    4.
    发明申请
    1,1,1,3,3-Pentafluorobutane refrigerant or heat transfer fluid compositions comprising hydrofluorocarbon and uses thereof 失效
    1,1,1,3,3-五氟丁烷制冷剂或包含氢氟烃的传热流体组合物及其用途

    公开(公告)号:US20050151111A1

    公开(公告)日:2005-07-14

    申请号:US11014435

    申请日:2004-12-16

    IPC分类号: C09K5/04 C09K5/00

    摘要: Disclosed herein are 1,1,1,3,3-pentafluorobutane refrigerant or heat transfer fluid compositions further comprising hydrofluorocarbon, N-(difluoromethyl)-N,N-dimethylamine, 1,1,1,2,2-pentafluoro-2-[(pentafluoroethyl)thio]ethane or mixtures thereof, which are useful in refrigerain or air conditioning apparatus or as heat transfer fluids. The compositions of the present invention are also useful in centrifugal compressor apparatus that employ two-stage compressors or single slab.single pass heat exchangers.

    摘要翻译: 本文公开了1,1,1,3,3-五氟丁烷制冷剂或传热流体组合物,其还包含氢氟烃,N-(二氟甲基)-N,N-二甲胺,1,1,1,2,2-五氟-2- 乙醚或其混合物,其可用于制冷剂或空调设备或作为传热流体。 本发明的组合物也可用于使用两级压缩机或单片式单通道热交换器的离心式压缩机设备中。

    1,1,1,3,3-PENTAFLUOROBUTANE REFRIGERANT OR HEAT TRANSFER FLUID COMPOSITIONS COMPRISING HYDROFLUOROCARBON AND USES THEREOF
    7.
    发明申请
    1,1,1,3,3-PENTAFLUOROBUTANE REFRIGERANT OR HEAT TRANSFER FLUID COMPOSITIONS COMPRISING HYDROFLUOROCARBON AND USES THEREOF 失效
    1,1,1,3,3-PENTAFLUOROBUTANE制冷剂或包含氢氟碳化合物的热交换流体组合物及其用途

    公开(公告)号:US20070228320A1

    公开(公告)日:2007-10-04

    申请号:US11758261

    申请日:2007-06-05

    IPC分类号: C09K5/00

    摘要: Disclosed herein are 1,1,1,3,3-pentafluorobutane refrigerant or heat transfer fluid compositions further comprising hydrofluorocarbon, N-(difluoromethyl)-N,N-dimethylamine, 1,1,1,2,2-pentafluoro-2-[(pentafluoroethyl)thio]ethane or mixtures thereof, which are useful in refrigerain or air conditioning apparatus or as heat transfer fluids. The compositions of the present invention are also useful in centrifugal compressor apparatus that employ two-stage compressors or single slab.single pass heat exchangers.

    摘要翻译: 本文公开了1,1,1,3,3-五氟丁烷制冷剂或传热流体组合物,其还包含氢氟烃,N-(二氟甲基)-N,N-二甲胺,1,1,1,2,2-五氟-2- 乙醚或其混合物,其可用于制冷剂或空调设备或作为传热流体。 本发明的组合物也可用于使用两级压缩机或单片式单通道热交换器的离心式压缩机设备中。

    1,1,1,2,2,3,3,4,4-Nonafluoro-4-methoxybutane refrigerant compositions comprising a fluoroether and uses thereof
    8.
    发明申请
    1,1,1,2,2,3,3,4,4-Nonafluoro-4-methoxybutane refrigerant compositions comprising a fluoroether and uses thereof 失效
    包含氟醚的1,1,1,2,2,3,3,4,4-九氟-4-甲氧基丁烷制冷剂组合物及其用途

    公开(公告)号:US20070200086A1

    公开(公告)日:2007-08-30

    申请号:US11787682

    申请日:2007-04-17

    IPC分类号: C09K5/04

    摘要: Disclosed herein are 1,1,1,2,2,3,3,4,4-nonafluoro-4-methoxybutane refrigerant or heat transfer fluid compositions further comprising and a fluoroether compound, which are useful in refrigeration or air conditioning apparatus or as heat transfer fluids. The compositions of the present invention are also useful in centrifugal compressor apparatus that employ two-stage compressors or single slab/single pass heat exchangers. IV

    摘要翻译: 本文公开了1,1,1,2,2,3,3,4,4-九氟-4-甲氧基丁烷制冷剂或传热流体组合物,其还包含氟代醚化合物,其可用于制冷或空调设备或作为 传热流体。 本发明的组合物也可用于使用两级压缩机或单片/单程热交换器的离心式压缩机装置中。 四,