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    Methods of purifying hydroxylamine solutions and converting hydroxylamine salts to hydroxylamine
    61.
    发明公开
    Methods of purifying hydroxylamine solutions and converting hydroxylamine salts to hydroxylamine 失效
    羟基甲醛中的维生素Zur Reinigung vonHydroxylaminlösungenund Umwandlung von Hydroxylaminsalzen

    公开(公告)号：EP0870532A2

    公开(公告)日：1998-10-14

    申请号：EP98302671.7

    申请日：1998-04-06

    申请人： Sachem, Inc.

    发明人： Sharifian, Hossein ,  Shay, Christopher D.

    IPC分类号： B01D61/44 ,  C07C209/84 ,  C25B3/00

    CPC分类号： C01B21/1445 ,  B01D61/44 ,  B01D61/445 ,  C01B21/1481

    摘要： In one embodiment, the present invention provides a method of preparing hydroxylamine from a hydroxylammonium salt solution, including providing an electrochemical cell containing an anode, a cathode, a cation selective membrane and an anion selective membrane, wherein the cation selective membrane is positioned between the cathode and the anion selective membrane, and the anion selective membrane is positioned between the cation selective membrane and the anode, thereby defining a feed compartment between the cation selective membrane and the anion selective membrane, a recovery compartment between the cathode and the cation selective membrane, and an acid compartment between the anion selective membrane and the anode; charging a first solution to the acid compartment and a second solution the recovery compartment; charging the hydroxylammonium salt solution to the feed compartment; passing a current through the cell to produce hydroxylamine in the recovery compartment; and recovering hydroxylamine from the recovery compartment.

    摘要翻译： 在一个实施方案中，本发明提供了从羟基铵盐溶液制备羟胺的方法，包括提供含有阳极（12），阴极（11），阳离子选择性膜（14）和阴离子 选择性膜（13），其中阳离子选择性膜（14）位于阴极（11）和阴离子选择性膜（13）之间，并且阴离子选择性膜（13）位于阳离子选择性膜（14）和 阳极（12），从而在阳离子选择性膜（14）和阴离子选择性膜（13）之间限定进料室（16），阴极（11）和阳离子选择膜（14）之间的回收室 ）和阴离子选择性膜（13）和阳极（12）之间的酸室（15）。 将第一溶液装入所述酸室（15）和所述回收室（17）的第二溶液; 将羟基铵盐溶液装入进料室（16）; 使电流通过电池（10）以在回收室（17）中产生羟胺; 并从回收室（17）中回收羟胺。

    Process for purifying hydroxide compounds
    62.
    发明公开
    Process for purifying hydroxide compounds 失效
    纯化氢氧化物化合物的方法

    公开(公告)号：EP0834346A2

    公开(公告)日：1998-04-08

    申请号：EP97307820.7

    申请日：1997-10-03

    申请人： Sachem, Inc.

    发明人： Sharifian, Hossein ,  Mooney, John E.

    IPC分类号： B01D61/44 ,  C01B13/16 ,  C01D1/40 ,  C07C209/84 ,  C25B3/00

    CPC分类号： C07C209/84 ,  B01D61/445 ,  C01B13/16 ,  C01D1/40

    摘要： In one embodiment, the invention relates to a process for purifying solutions containing a hydroxide compound, including the steps of: (A) providing an electrochemical cell containing an anode, a cathode, a cation selective membrane and a bipolar membrane, the bipolar membrane having an anion selective side facing the anode and a cation selective side facing the cathode, wherein the cation selective membrane is positioned between the anode and the bipolar membrane, and the bipolar membrane is positioned between the cation selective membrane and the cathode, thereby defining a feed compartment between the cation selective membrane and the anode, a recovery compartment between the bipolar membrane and the cation selective membrane, and a water compartment between the bipolar membrane and the cathode; (B) charging a solution of an ionic compound at a first concentration to the water compartment, and water to the recovery compartment; (C) charging a solution containing the hydroxide compound at a second concentration to the feed compartment; (D) passing a current through the electrochemical cell to produce the hydroxide compound at a third concentration in the recovery compartment; and (E) recovering the hydroxide compound from the recovery compartment.

    摘要翻译： 在一个实施方案中，本发明涉及纯化含有氢氧化物化合物的溶液的方法，包括以下步骤：（A）提供含有阳极，阴极，阳离子选择性膜和双极性膜的电化学电池，该双极性膜具有 面向阳极的阴离子选择侧和面向阴极的阳离子选择侧，其中阳离子选择膜位于阳极和双极膜之间，并且双极膜位于阳离子选择膜和阴极之间，由此限定进料 阳离子选择性膜和阳极之间的隔室，双极性膜和阳离子选择性膜之间的回收室以及双极性膜和阴极之间的水室; （B）将第一浓度的离子化合物溶液加入到水室中，并将水加入回收室中; （C）将含有第二浓度的氢氧化物的溶液装入进料室; （D）使电流通过电化学电池以在回收室中以第三浓度产生氢氧化物; 和（E）从回收室回收氢氧化物。

    Method for producing high purity hydroxides and alkoxides
    63.
    发明公开
    Method for producing high purity hydroxides and alkoxides 失效
    一种用于生产氢氧化物和高纯度的醇盐的过程。

    公开(公告)号：EP0652041A3

    公开(公告)日：1995-08-30

    申请号：EP94117525.9

    申请日：1994-11-07

    申请人： Sachem, Inc.

    发明人： Sharifian, Hossein ,  Diercks, David G.

    IPC分类号： B01D61/44

    CPC分类号： C25B3/00 ,  B01D61/44 ,  C01B13/16 ,  C01D1/40 ,  C01P2006/80 ,  C07C209/84

    摘要： Processes are described for preparing organic and inorganic hydroxides or alkoxides and for improving the purity of organic and inorganic hydroxides or alkoxides utilizing an electrolysis cell. For example, a process for improving the purity of a organic or inorganic hydroxide is described, and the process comprises the steps of:
    (A) providing a electrolysis cell which comprises a anolyte compartment containing an anode, a catholyte compartment containing a cathode and water, and at least one intermediate compartment containing water, an organic liquid, or a mixture of water and an organic liquid, said at least one intermediate compartment being separated from the anolyte and catholyte compartments by at least two dividers selected from nonionic dividers, cation selective membranes, or combinations thereof; (B) charging a mixture comprising the organic or inorganic hydroxide and an oxidizable liquid to the anolyte compartment; (C) passing a current through the electrolysis cell to produce a purified organic or inorganic hydroxide in the catholyte compartment; and (D) recovering the purified organic or inorganic hydroxide from the catholyte compartment.
    The process of the invention is effective in lowering the content of anions such as halide, nitrite, nitrate, carbonate, etc., some cations such as zinc, calcium, etc., and neutral organic materials such as methanol, amines, etc.

    Method for producing high purity quaternary ammonium hydroxides
    64.
    发明公开
    Method for producing high purity quaternary ammonium hydroxides 失效
    Herstellungsverfahren vonquaternärenAmmoniumhydroxiden von hoher Reinheit。

    公开(公告)号：EP0255756A2

    公开(公告)日：1988-02-10

    申请号：EP87305482.9

    申请日：1987-06-19

    申请人： Sachem, Inc.

    发明人： Hale, Cecil H. ,  Tanner, Alan R. ,  Hale, Bryan M.

    IPC分类号： C25B3/00 ,  B01D57/02 ,  C07C211/62 ,  C07C215/00 ,  C07C217/00

    CPC分类号： B01D61/44 ,  C07C209/84 ,  C25B3/00

    摘要： A process is described for improving the purity of aqueous quaternary ammonium hydroxides, the process comprising:

    (a) heating the aqueous quaternary ammonium hydroxide solution at an elevated temperature of from about 50°C to about 200°C for a period of at least about 0.1 hour;
    (b) charging the thus treated aqueous solution to the anolyte compartment an electrolysis cell comprising an anolyte compartment and a catholyte compartment separated from each other by a cation-exchange membrane and containing water as the catholyte;
    (c) passing a direct current through the electrolysis cell to produce a high purity quaternary ammonium hydroxide in the catholyte compartment; and
    (d) recovering the high purity quaternary ammonium hydroxide from the catholyte compartment.

    The process significantly reduces the amount of halogen (both ionic and latent), carbonates and/or metals present in the quaternary ammonium hydroxide and improves the colour.

    摘要翻译： 描述了一种改善水性季铵氢氧化物的纯度的方法，该方法包括：（a）在约50℃至约200℃的升高的温度下加热季铵氢氧化物水溶液至少约 0.1小时; （b）将由此处理的水溶液装入阳极电解液室，该电解槽包含阳离子室和通过阳离子交换膜彼此隔开并含有水作为阴极电解液的阴极电解液室; （c）使直流电流通过电解池，以在阴极电解液室中产生高纯度的季铵氢氧化物; 和（d）从阴极电解液室回收高纯度季铵氢氧化物。 该方法显着地减少氢氧化季铵中存在的卤素（包括离子和潜在的），碳酸盐和/或金属的量并改善颜色。

    ANIONIC DISPLACER MOLECULES FOR HYDROPHOBIC DISPLACEMENT CHROMATOGRAPHY
    68.
    发明公开
    ANIONIC DISPLACER MOLECULES FOR HYDROPHOBIC DISPLACEMENT CHROMATOGRAPHY 审中-公开
    阴离子置换疏水性置换色谱

    公开(公告)号：EP2763772A2

    公开(公告)日：2014-08-13

    申请号：EP12772689.1

    申请日：2012-10-03

    申请人： Sachem, Inc.

    发明人： HAYMORE, Barry, L.

    IPC分类号： B01D15/32 ,  B01D15/42

    CPC分类号： C07K1/20 ,  B01D15/325 ,  B01D15/422

    摘要： A process for separating organic compounds from a mixture by reverse- phase displacement chromatography, including providing a hydrophobic stationary phase; applying to the hydrophobic stationary phase a mixture comprising organic compounds to be separated; displacing the organic compounds from the hydrophobic stationary phase by applying thereto an aqueous composition comprising a non-surface active hydrophobic anionic displacer molecule and about 10 wt% or less of an organic solvent; and collecting a plurality of fractions eluted from the hydrophobic stationary phase containing the separated organic compounds; in which the non-surface active hydrophobic anionic displacer molecule comprises a hydrophobic anion and a counterion, CI, having the general formula A or B, as defined in the disclosure: [CM] [Cl]d [CM-R*-CM'l [Cl]d A B.