Copper-Substituted Chromium Oxide Compositions, Their Preparation, and Their Use as Catalysts and Catalyst Precursors

    公开(公告)号:US20100152503A1

    公开(公告)日:2010-06-17

    申请号:US11988256

    申请日:2006-08-04

    摘要: A crystalline alpha-chromium oxide where from about 0.05 atom % to about 5 atom % of the chromium atoms in the alpha-chromium oxide lattice are replaced by divalent copper (Cu+2) atoms is disclosed. Also disclosed is a chromium-containing catalyst composition comprising as a chromium-containing component the crystalline copper-substituted alpha-chromium oxide; and methods for preparing a composition comprising the crystalline copper-substituted alpha-chromium oxide. One method involves (a) co-precipitating a solid by adding ammonium hydroxide to an aqueous solution of a soluble copper 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 copper concentration of from about 0.05 atom % to about 5 atom % of the total concentration of copper and chromium in the solution; and after at least three moles 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. Another method involves (a) preparing an aqueous solution of a soluble copper salt and a soluble trivalent chromium salt that contains a copper concentration of from about 0.05 atom % to about 5 atom % of the total concentration of copper and chromium in the solution, (b) evaporating the solution to dryness, and (c) calcining the dried solid. Also disclosed is a chromium-containing catalyst composition comprising a chromium-containing component prepared by treating the crystalline copper-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 copper-substituted alpha-chromium oxide and/or the treated copper-substituted alpha-chromium oxide.

    Functionalized Copolymers of Terminally Functionalized Perfluoro (Alkyl Vinyl Ether) Reactor Wall for Photochemical Reactions, Process for Increasing Fluorine Content in Hydrocaebons and Halohydrocarbons and Olefin Production
    22.
    发明申请
    Functionalized Copolymers of Terminally Functionalized Perfluoro (Alkyl Vinyl Ether) Reactor Wall for Photochemical Reactions, Process for Increasing Fluorine Content in Hydrocaebons and Halohydrocarbons and Olefin Production 审中-公开
    用于光化学反应的末端官能化全氟(烷基乙烯醚)反应器壁的官能化共聚物,增加氢化碳和卤代烃中的氟含量和烯烃生产的方法

    公开(公告)号:US20070265368A1

    公开(公告)日:2007-11-15

    申请号:US11792639

    申请日:2005-12-19

    IPC分类号: C07C17/00 C08J3/28

    摘要: A photochemical reaction apparatus including a reactor and a light source situated so that light from the light source is directed through a portion of the reactor wall is disclosed. The apparatus is characterized by the portion of the reaction wall comprising a functionalized copolymer of a terminally functionalized perfluoro(alkyl vinyl ether). Also described is a photochemical reaction process using said reactor. The functional group of the copolymer of the apparatus and the process is selected from —SO2F, —SO2CI, —SO3H, —CO2R (where R is H or C1-C3 alkyl), —PO3H2, and salts thereof. A process for increasing the flourine content of at least one compound selected from hydrocarbons and halohydrocarbons, comprising: (a) photochlorinating said at least one compound, and (b) reacting the halogenated hydrocarbon in (a) with HF. A process for producing an olefinic compound, comprising: (a) photochlorinating at least one compound selected from hydrocarbons and halohydrocarbons containing at least two carbon atoms and at least two hydrogen atoms to produce a halogenated hydrocarbon containing a hydrogen substituent and a chlorine substituent on adjacent carbon atoms; and (b) subjecting the halogenated hydrocarbon produced in (a) to dehydrohalogenation.

    摘要翻译: 公开了一种光化学反应装置,其包括反应器和光源,其位于使得来自光源的光被引导通过反应器壁的一部分。 该装置的特征在于反应壁的一部分包含末端官能化的全氟(烷基乙烯基醚)的官能化共聚物。 还描述了使用所述反应器的光化学反应过程。 该装置和方法的共聚物的官能团选自-SO 2 F,-SO 2 Cl,-SO 3 H ,-CO 2 R(其中R为H或C 1 -C 3烷基),-PO 3 H 2 H 2,及其盐。 一种提高至少一种选自烃和卤代烃的化合物的含量的方法,包括:(a)将所述至少一种化合物进行光氯化,和(b)使(a)中的卤代烃与HF反应。 一种制备烯烃化合物的方法,包括:(a)将至少一种选自含有至少两个碳原子和至少两个氢原子的烃和卤代烃的化合物进行光氯化以产生在邻近的含氢取代基和氯取代基的卤代烃 碳原子 和(b)使(a)中制备的卤代烃脱卤化氢。

    1,1,1,3,3-PENTAFLUOROBUTANE REFRIGERANT OR HEAT TRANSFER FLUID COMPOSITIONS COMPRISING HYDROFLUOROCARBON AND USES THEREOF
    24.
    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
    25.
    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,

    Compositions comprising bromofluoro-olefins and uses thereof
    28.
    发明申请
    Compositions comprising bromofluoro-olefins and uses thereof 审中-公开
    包含溴氟烯烃的组合物及其用途

    公开(公告)号:US20060266976A1

    公开(公告)日:2006-11-30

    申请号:US11438766

    申请日:2006-05-23

    IPC分类号: C09K5/04

    摘要: The present invention relates to compositions for use in refrigeration and air-conditioning systems comprising at least one bromofluoro-olefin. The present invention further relates to refrigerant and heat transfer fluid compositions comprising a flammable refrigerant and a bromofluoro-olefin. The present invention further relates to compositions for use in refrigeration apparatus and air-conditioning apparatus employing a centrifugal compressor comprising at least one bromofluoro-olefin. Further, the present invention relates to the utility of the present refrigerant and heat transfer fluid compositions in processes for producing heat and cooling, methods for reducing flammability of a refrigerant, methods for lowering GWP of a refrigerant, methods for replacing refrigerants and other uses.

    摘要翻译: 本发明涉及用于包含至少一种溴氟烯烃的制冷和空调系统中的组合物。 本发明还涉及包含可燃性致冷剂和溴氟烯烃的制冷剂和传热流体组合物。 本发明还涉及用于制冷装置和使用包含至少一种溴氟烯烃的离心压缩机的空调装置的组合物。 此外,本发明涉及本发明的制冷剂和传热流体组合物在制造热和冷却的方法中的应用,制冷剂的可燃性降低方法,降低制冷剂GWP的方法,替换制冷剂的方法等用途。