Special effect pigments
    4.
    发明授权
    Special effect pigments 有权
    特效颜料

    公开(公告)号:US08172935B2

    公开(公告)日:2012-05-08

    申请号:US11995001

    申请日:2007-07-25

    IPC分类号: C04B14/00

    摘要: The present invention provides mixed metal oxide based special effect pigments that can be incorporated into optically thin binder systems to produce a “metal flake” appearance that is superior to the “metal flake” appearance presently achievable using conventional special effect pigments. Special effect pigments according to the invention comprise at least 10 wt % of mixed metal oxides that exhibit the McConnellite (Cu1+Cr3+O2) crystal structure. Other metallic elements can be incorporated into the crystal lattice structure to alter the appearance effect of the pigments.

    摘要翻译: 本发明提供混合金属氧化物基特殊效果颜料,其可以结合到光学薄的粘合剂体系中以产生优于使用常规特殊效果颜料目前可实现的“金属薄片”外观的“金属薄片”外观。 根据本发明的特效颜料包含至少10重量%的表现出McConnellite(Cu1 + Cr3 + O2)晶体结构的混合金属氧化物。 可以将其它金属元素结合到晶格结构中以改变颜料的外观效果。

    Rare vanadium derivative
    6.
    发明申请
    Rare vanadium derivative 审中-公开
    稀有钒衍生物

    公开(公告)号:US20090081116A1

    公开(公告)日:2009-03-26

    申请号:US11796157

    申请日:2007-09-21

    申请人: Abdoulaye Dieng

    发明人: Abdoulaye Dieng

    IPC分类号: C01G37/00

    CPC分类号: C01G31/00 C01G37/00

    摘要: The unique method of synthesis of chromium vanadate is performed using chromium chloride and sodium metavanadate. Methanol is used as a solvent. Zinc and/or palladium can be used as a catalyst. After reacting, the filtrate will be evaporated and the obtained substance is Chromium vanadate. The precipitate is sodium chloride.

    摘要翻译: 使用氯化铬和偏钒酸钠进行合成铬酸钒的独特方法。 甲醇用作溶剂。 锌和/或钯可以用作催化剂。 反应后,滤液蒸发,得到的物质为钒酸钒。 沉淀物是氯化钠。

    Materials for solid-state gas sensors
    8.
    发明授权
    Materials for solid-state gas sensors 有权
    固态气体传感器材料

    公开(公告)号:US06481264B1

    公开(公告)日:2002-11-19

    申请号:US09830132

    申请日:2001-04-24

    IPC分类号: G01N700

    摘要: A sensor for detecting the presence of gas and methods for use. The sensor has a low sensitivity to relative humidity and high sensitivity to the presence of gases such as carbon monoxide. The sensor is comprised of ternary oxides of the formula Cr2−x(M1zM21−z)xO3 with M1=Fe or Mn, M2=Fe, Mn, or Al, 0.005≦x≦1.95, 0.005≦z≦0.995; ternary oxides of the formula Cr2−x(M1zM21−z)xO3 with M1=Fe or Mn, M2=Ti, 0.005≦x≦1.95, 0.005≦z≦0.45; or quaternary and quinternary oxides of the formula Cr2−x((M1aM2bM3c)zM41−z)xO3 with M1=Fe, M2=Mn, M3=Al, and M4=Ti, 0≦a,b,c≦1, 0.005≦x≦1.95, and 0.005≦z≦0.45.

    摘要翻译: 用于检测气体存在的传感器和使用方法。 传感器对相对湿度的敏感性低,对一氧化碳等气体的敏感性高。 传感器由M1 = Fe或Mn,M2 = Fe,Mn或Al的式Cr2-x(M1zM21-z)xO3的三元氧化物组成,0.005 <= x <= 1.95,0.005 <= z <= 0.995 ; M1 = Fe或Mn,M2 = Ti,0.005 <= x <= 1.95,0.005 <= z <= 0.45的式Cr2-x(M1zM21-z)xO3的三元氧化物; 或具有M1 = Fe,M2 = Mn,M3 = Al和M4 = Ti的式Cr2-x((M1aM2bM3c)zM41-z)xO3的季铵和季铵氧化物,0 <= a,b,c < 0.005 <= x <= 1.95,0.005 <= z <= 0.45。

    Method for removal of hexavalent chromium from a solution
    10.
    发明授权
    Method for removal of hexavalent chromium from a solution 失效
    从溶液中去除六价铬的方法

    公开(公告)号:US5415848A

    公开(公告)日:1995-05-16

    申请号:US80549

    申请日:1993-06-24

    申请人: Roy F. Thornton

    发明人: Roy F. Thornton

    摘要: A process for removing chromium from an aqueous electrolyte solution is disclosed. The process involves admixing with the solution an amount of a chromium-reducing compound and an amount of a precipitant for the anion of the chromium-reducing compound. The invention provides for substantially complete reduction of hexavalent chromium to trivalent chromium and the formation of an insoluble chromium-containing material without leaving unwanted ions in the aqueous electrolyte solution. The aqueous electrolyte solution is regenerated by adjustment of pH and electrolyte concentration.

    摘要翻译: 公开了一种从电解质水溶液中除去铬的方法。 该方法包括与溶液混合一定量的还原铬化合物和一定量的还原铬化合物阴离子的沉淀剂。 本发明提供了将六价铬基本上完全还原成三价铬并形成不溶性含铬材料,而不会在电解质水溶液中留下不需要的离子。 通过调节pH和电解质浓度来再生电解质水溶液。