Silicide compositions containing alkali metals and methods of making the same
    1.
    发明申请
    Silicide compositions containing alkali metals and methods of making the same 有权
    含有碱金属的硅化物组合物及其制备方法

    公开(公告)号:US20060002839A1

    公开(公告)日:2006-01-05

    申请号:US11151661

    申请日:2005-06-14

    IPC分类号: C01B33/06

    摘要: The invention relates to a method of making alkali metal silicide compositions, and the compositions resulting from the method, comprising mixing an alkali metal with silicon and heating the resulting mixture to a temperature below about 475° C. The resulting compositions do not react with dry O2. Also, the invention relates to sodium silicide compositions having a powder X-ray diffraction pattern comprising at least three peaks with 2Theta angles selected from about 18.2, 28.5, 29.5, 33.7, 41.2, 47.4, and 56.2 and a solid state 23Na MAS NMR spectra peak at about 18 ppm. Moreover, the invention relates to methods of removing a volatile or flammable substance in a controlled manner. Furthermore, the alkali metal silicide compositions of the invention react with water to produce hydrogen gas.

    摘要翻译: 本发明涉及一种制备碱金属硅化物组合物的方法和由该方法得到的组合物,其包括将碱金属与硅混合并将所得混合物加热至低于约475℃的温度。所得组合物不与干 O 2 。 此外,本发明涉及具有包含至少三个峰的粉末X射线衍射图的硅化钠组合物,其中2个角度选自约18.2,28.5,29.5,33.7,41.2,47.4和56.2,固态23 Na MAS NMR光谱峰在约18ppm。 此外,本发明涉及以受控方式除去挥发性或易燃物质的方法。 此外,本发明的碱金属硅化物组合物与水反应产生氢气。

    Silica gel compositions containing alkali metals and alkali metal alloy
    2.
    发明申请
    Silica gel compositions containing alkali metals and alkali metal alloy 有权
    含有碱金属和碱金属合金的硅胶组合物

    公开(公告)号:US20050151278A1

    公开(公告)日:2005-07-14

    申请号:US10995327

    申请日:2004-11-24

    IPC分类号: B01J23/04 C07C17/25 C07F1/02

    摘要: The invention relates to Group 1 metal/silica gel compositions comprising silica gel and an alkali metal or an alkali metal alloy. The compositions of the inventions are described as Stage 0, I, II, and III materials. These materials differ in their preparation and chemical reactivity. Each successive stage may be prepared directly using the methods described below or from an earlier stage material. Stage 0 materials may, for example, be prepared using liquid alloys of Na and K which are rapidly absorbed by silica gel (porous SiO2) under isothermal conditions, preferably at or just above room temperature, to form loose black powders that retain much of the reducing ability of the parent metals. When the low melting Group 1 metals are absorbed into the silica gel, a mild exothermic reaction produces Stage I material, loose black powders that are indefinitely stable in dry air. Subsequent heating to 400° C. produces Stage II materials, which are also loose black powders. Further heating above 400° C. forms Stage III material with release of some Group 1 metal. It is believed that Stage I, II and III materials represent reductions of the silica gel after absorption of the Group 1 metal. Preferred Group 1 metal/silica gel compositions of the invention are those containing sodium, potassium, or sodium-potassium alloys with sodium and sodium-potassium alloys being most preferred. Each stage of the Group 1 metal/silica gel composition of the invention may be used as a reducing agent reacting with a number of reducible organic materials in the same manner known for alkali metals and their alloys.

    摘要翻译: 本发明涉及包含硅胶和碱金属或碱金属合金的第1族金属/硅胶组合物。 本发明的组合物被描述为阶段0,I,II和III材料。 这些材料的制备和化学反应性不同。 可以使用下述方法或从较早阶段的材料直接制备每个连续阶段。 例如,可以使用在等温条件下优选在或高于室温的硅胶(多孔SiO 2)快速吸收的Na和K的液体合金来制备阶段0材料,以形成 松散的黑色粉末保留了母体金属的大部分还原能力。 当低熔点的第1族金属被吸收到硅胶中时,温和的放热反应产生阶段I材料,在干燥空气中无限稳定的松散的黑色粉末。 随后加热至400°C,产生阶段II材料,它们也是松散的黑色粉末。 在400℃以上进一步加热,形成具有一些第1组金属释放的III级材料。 据认为,I,II和III族材料表示吸收第1族金属后硅胶的减少。 本发明优选的第1族金属/硅胶组合物是含有钠,钾或钠 - 钾合金的那些,其中钠和钠 - 钾合金是最优选的。 本发明的第1族金属/硅胶组合物的每个阶段可以以与碱金属及其合金已知的相同的方式用作与许多可还原的有机材料反应的还原剂。

    TITANIUM OXIDE AND ALUMINA ALKALI METAL COMPOSITIONS
    3.
    发明申请
    TITANIUM OXIDE AND ALUMINA ALKALI METAL COMPOSITIONS 有权
    氧化钛和氧化铝碱金属组合物

    公开(公告)号:US20080063596A1

    公开(公告)日:2008-03-13

    申请号:US11839684

    申请日:2007-08-16

    摘要: The invention relates to Group 1 metal/porous metal oxide compositions comprising porous metal oxide selected from porous titanium oxide and porous alumina and an alkali metal or an alkali metal alloy. The compositions of the inventions are described as Stage 0 and I materials. These materials differ in their preparation and chemical reactivity. Each successive stage may be prepared directly using the methods described below or from an earlier stage material. Stage 0 materials may, for example, be prepared using liquid alloys of Na and K which are rapidly absorbed by porous metal oxide under isothermal conditions, preferably at or just above room temperature, to form loose black powders that retain much of the reducing ability of the parent metals. When the low melting Group 1 metals are absorbed into the porous metal oxide at about 150° C., an exothermic reaction produces Stage I material, loose black powders that are stable in dry air. Further heating forms higher stage materials of unknown composition. It is believed that Stage I higher materials represent reductions of the porous metal oxide after absorption of the Group 1 metal. Preferred Group 1 metal/porous metal oxide compositions of the invention are those containing sodium, potassium, or sodium-potassium alloys with sodium and sodium-potassium alloys being most preferred. Each stage of the Group 1 metal/porous metal oxide composition of the invention may be used as a reducing agent reacting with a number of reducible organic materials in the same manner known for alkali metals and their alloys.

    摘要翻译: 本发明涉及包含选自多孔氧化钛和多孔氧化铝的多孔金属氧化物和碱金属或碱金属合金的第1族金属/多孔金属氧化物组合物。 本发明的组合物被描述为阶段0和I材料。 这些材料的制备和化学反应性不同。 可以使用下述方法或从较早阶段的材料直接制备每个连续阶段。 阶段0材料可以例如使用Na和K的液体合金制备,其在等温条件下优选在或刚好高于室温下被多孔金属氧化物快速吸收,形成松散的黑色粉末,其保留大量的还原能力 母体金属。 当低熔点的第1族金属在约150℃下被吸收到多孔金属氧化物中时,放热反应产生阶段I材料,在干燥空气中稳定的松散的黑色粉末。 进一步加热形成未知组成的较高级材料。 据信,第一阶段较高的材料表示吸收第1族金属后多孔金属氧化物的减少。 优选的本发明的第1族金属/多孔金属氧化物组合物是含有钠,钾或钠 - 钾合金的那些,其中钠和钠 - 钾合金是最优选的。 本发明的第1族金属/多孔金属氧化物组合物的每个阶段可以以与碱金属及其合金已知的相同方式用作与许多可还原的有机材料反应的还原剂。

    Titanium oxide and alumina alkali metal compositions

    公开(公告)号:US20060073968A1

    公开(公告)日:2006-04-06

    申请号:US11232077

    申请日:2005-09-22

    IPC分类号: C01B3/08

    摘要: The invention relates to Group 1 metal/porous metal oxide compositions comprising porous metal oxide selected from porous titanium oxide and porous alumina and an alkali metal or an alkali metal alloy. The compositions of the inventions are described as Stage 0 and I materials. These materials differ in their preparation and chemical reactivity. Each successive stage may be prepared directly using the methods described below or from an earlier stage material. Stage 0 materials may, for example, be prepared using liquid alloys of Na and K which are rapidly absorbed by porous metal oxide under isothermal conditions, preferably at or just above room temperature, to form loose black powders that retain much of the reducing ability of the parent metals. When the low melting Group 1 metals are absorbed into the porous metal oxide at about 150° C., an exothermic reaction produces Stage I material, loose black powders that are stable in dry air. Further heating forms higher stage materials of unknown composition. It is believed that Stage I higher materials represent reductions of the porous metal oxide after absorption of the Group 1 metal. Preferred Group 1 metal/porous metal oxide compositions of the invention are those containing sodium, potassium, or sodium-potassium alloys with sodium and sodium-potassium alloys being most preferred. Each stage of the Group 1 metal/porous metal oxide composition of the invention may be used as a reducing agent reacting with a number of reducible organic materials in the same manner known for alkali metals and their alloys.