METHOD FOR PREPARING DISODIUM PARAPERIODATE
    1.
    发明公开
    METHOD FOR PREPARING DISODIUM PARAPERIODATE 有权
    一种制备碘化十二烷醇酯的方法

    公开(公告)号:EP1619167A1

    公开(公告)日:2006-01-25

    申请号:EP04720972.1

    申请日:2004-03-16

    发明人: YOSHIKAWA, Kouji

    IPC分类号: C01B11/22

    CPC分类号: C01B11/22

    摘要: It is provided that a method for preparing disodium paraperiodate, characterized in that a pH of a reaction mixture which is obtained by reacting sodium iodate, iodic acid or a mixture thereof with sodium hypochlorite using sodium hydroxide is adjusted to the range between 5 and 10.

    摘要翻译: 提供了一种制备过碘酸钠的方法,其特征在于通过使用氢氧化钠将碘酸钠,碘酸或其混合物与次氯酸钠的反应获得的反应混合物的pH值调节至5至10。

    PROCESS FOR REGENERATING PERIODIC ACID
    2.
    发明公开
    PROCESS FOR REGENERATING PERIODIC ACID 有权
    法再生周期酸的

    公开(公告)号:EP1189834A1

    公开(公告)日:2002-03-27

    申请号:EP00939190.5

    申请日:2000-06-07

    IPC分类号: C01B11/22 C08B31/18

    CPC分类号: C01B11/22 C08B31/18

    摘要: The invention pertains to a process for the regeneration and recovery of periodate from a spent iodate solution, by reacting the iodate with at least an equimolar amount of hypohalite, and carrying out the recovery in the presence of a water-miscible organic solvent or potassium ions or divalent metal (especially calcium) ions. The regenerated periodate is especially suitable for oxidising carbohydrates to dialdehyde carbohydrates.

    Preparation of a basic aluminium antiperspirant active material having enhanced activity
    6.
    发明公开
    Preparation of a basic aluminium antiperspirant active material having enhanced activity 失效
    具有增强活性的基础铝抗菌活性材料,含有这种材料的抗菌活性组合物及其制备方法和组合物

    公开(公告)号:EP0455489A3

    公开(公告)日:1992-05-13

    申请号:EP91303978.0

    申请日:1991-05-02

    摘要: Disclosed is a basic aluminum material having enhanced antiperspirant activity, the material having the empirical formula Al₂(OH) 6-a X a , where 0.5 ≦ a ≦ 5.0, and X is a univalent complex oxoanion of nitrogen, chlorine and other halogens, which forms salts with Al³⁺ in aqueous solution so that these salts are essentially completely dissociated, which is readily soluble in water with metallic ions in the solution, and which forms conjugate acids that are strong acids; and wherein the material is characterized by:
    (a) size exclusion high performance liquid chromatography peaks corresponding to peak 3 and peak 4 of size exclusion chromatograms formed by HPLC technique; (b) a peak 4 relative area of at least 25%, a peak 3 relative area of less than 60%, the sum of the relative peak 3 and peak 4 areas being at least 50%; and (c) less than 10% chromatographic peaks eluting at shorter retention times than peak 3, corresponding to peaks 1 and 2. Illustratively, the univalent oxoanion can be ClO₃⁻, ClO₄⁻, IO₄⁻, and preferably NO₃⁻. The material is characterized by having et least 25% by weight thereof in the form of Al b polyhydroxyaquoaluminum species. Also disclosed are antiperspirant compositions including the basic aluminum material, a zirconium, hafnium, titanium and/or tin antiperspirant active material and a neutral amino acid, and methods of forming the basic aluminum material and the antiperspirant composition. The basic aluminum material can be formed at relatively low temperatures, without first forming a dilute solution of a basic aluminum compound, and the basic aluminum material has a stable enhanced activity in aqueous solution over a relatively long period of time.

    Basic aluminium antiperspirant active material, compositions including the material, and methods for preparation thereof
    10.
    发明公开
    Basic aluminium antiperspirant active material, compositions including the material, and methods for preparation thereof 失效
    基本铝材料具有perspirationshemmender效果,其制备方法本物质含有组合物和方法。

    公开(公告)号:EP0366230A1

    公开(公告)日:1990-05-02

    申请号:EP89308038.2

    申请日:1989-08-08

    摘要: Disclosed is a basic aluminum material having enhanced antiperspirant activity, the material having the empirical formula Al₂(OH) 6-a X a , where 0.5 ≦ a ≦ 5.0, and X is a univalent complex oxoanion of nitrogen, chlorine and other halogens, which does not form strong coordination compounds with Al³⁺ so that non-hydrolyzed aqueous monomeric aluminum solutions containing the anion are essentially completely dissociated, and which are readily soluble in water with metallic ions in the solution; and wherein the material is characterized by:

    (a) size exclusion high performance liquid chromatography peaks corresponding to peak 3 and peak 4 of size exclusion chromatograms formed by HPLC technique;
    (b) a peak 4 relative area of at least 40%, a peak 3 relative area of less than 50%, the sum of the relative peak 3 and peak 4 areas being at least 50%; and
    (c) less than 10% chromatographic peaks eluting at shorter retention times than peak 3, corresponding to peaks 1 and 2.

    摘要翻译: 本发明公开了具有增强的止汗活性的碱性铝材料,具有经验式Al 2(OH)6-A Xa,其中0.5 <+>象非水解的含wässrige阴离子单体铝溶液被完全呼叫本质上解离,这是在与溶液中的金属离子的水易溶; 和worin该材料的特点是:(a)中的尺寸排阻高效液相色谱法的峰对应于峰3,并通过HPLC法形成大小排阻色谱的峰4; (B)的峰的至少40%的4相对于面积,小于50%的峰值3相对面积,相对峰3和峰4个区域不至少50%的总和; 和(c)小于10%的色谱峰在保留时间比峰3短洗脱,对应于峰1个2。Ç