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    Method of measuring hydroquinone levels in boiler feedwaters using electrochemistry
    2.
    发明授权
    Method of measuring hydroquinone levels in boiler feedwaters using electrochemistry 失效
    使用电化学测量锅炉给水中氢醌水平的方法

    公开(公告)号：US5104809A

    公开(公告)日：1992-04-14

    申请号：US651159

    申请日：1991-02-06

    申请人： Roger D. Moulton

    发明人： Roger D. Moulton

    IPC分类号： G01N33/18

    CPC分类号： G01N33/1826 ,  Y10T436/145555

    摘要： An improved method of electroanalytical detection of residual hydroquinone in boiler feedwater employing adding an ionic base and a copper chelant to the feedwater sample. Na.sub.3 PO.sub.4 and ethylenediamine are representative chemicals when square wave voltammetry (SWV) is used as the electroanalytical technique.

    摘要翻译： 通过向给水样品中加入离子碱和铜螯合剂，改进了锅炉给水中残余氢醌的电分析检测方法。 当使用方波伏安法（SWV）作为电分析技术时，Na 3 PO 4和乙二胺是代表性的化学物质。

    Process for recovering organic hydroxides from waste solutions
    7.
    发明授权
    Process for recovering organic hydroxides from waste solutions 失效
    从废液中回收有机氢氧化物的方法

    公开(公告)号：US5910237A

    公开(公告)日：1999-06-08

    申请号：US815382

    申请日：1997-03-11

    申请人： Roger D. Moulton ,  Mark W. Hellums

    发明人： Roger D. Moulton ,  Mark W. Hellums

    IPC分类号： B01D61/44 ,  B01D20060101 ,  B01D17/06 ,  C02F20060101 ,  C02F1/461 ,  C02F1/469 ,  C02F9/06 ,  C25B20060101 ,  C25B1/00 ,  C25B3/00 ,  C25B15/08

    CPC分类号： C02F1/46104 ,  B01D61/44 ,  B01D61/445 ,  C02F2001/46128 ,  C02F2001/46138 ,  C02F2101/16 ,  C02F2101/30 ,  C02F2201/46125 ,  C02F2209/02 ,  C02F2209/06

    摘要： In one embodiment, the present invention relates to a process for recovering organic hydroxide from contaminated solutions containing the organic hydroxide and impurities including charging the contaminated solution to a first electrochemical cell containing at least two compartments, a cathode, an anode and a size selective divider and passing a current through the first electrochemical cell whereby impurities migrate through the size selective divider; recovering a second solution containing organic ions from the first electrochemical cell and charging the second solution to a second electrochemical cell containing at least two compartments, a cathode, an anode and a divider and passing a current through the second electrochemical cell whereby the organic hydroxide is purified; and recovering the organic hydroxide from the second electrochemical cell. In another embodiment, the present invention relates to a process for recovering onium hydroxide from contaminated solutions containing the onium hydroxide and impurities including forming a first solution containing an onium salt and impurities from the contaminated solution; contacting the first solution with a size selective membrane under pressure, wherein at least a portion of the impurities pass through the size selective membrane thereby providing a second solution containing an onium salt and a decreased amount of impurities; charging the second solution to an electrochemical cell containing at least two compartments, a cathode, an anode and a divider and passing a current through the cell whereby the onium hydroxide is purified; and recovering the onium hydroxide from the cell.

    摘要翻译： 在一个实施方案中，本发明涉及从含有有机氢氧化物和杂质的污染溶液中回收有机氢氧化物的方法，包括将污染溶液装入含有至少两个隔室的第一电化学电池，阴极，阳极和尺寸选择性分隔器 并且使电流通过第一电化学电池，由此杂质迁移通过尺寸选择性除法器; 从第一电化学电池回收含有有机离子的第二溶液，并将第二溶液装入含有至少两个隔室，阴极，阳极和分隔器的第二电化学电池，并使电流通过第二电化学电池，由此有机氢氧化物为 净化的; 并从第二电化学电池回收有机氢氧化物。 在另一个实施方案中，本发明涉及从含有氢氧化鎓和杂质的污染溶液中回收氢氧化鎓的方法，包括从污染溶液形成含有鎓盐和杂质的第一溶液; 在压力下使第一溶液与尺寸选择性膜接触，其中至少一部分杂质通过尺寸选择性膜，从而提供含有鎓盐和少量杂质的第二溶液; 将第二溶液装入含有至少两个隔室，阴极，阳极和分隔器的电化学电池，并使电流通过电池，由此纯化氢氧化鎓; 并从细胞中回收氢氧化鎓。

    Transport and deposit inhibition of copper in boilers
    9.
    发明授权
    Transport and deposit inhibition of copper in boilers 失效
    在锅炉中运输和沉积铜

    公开(公告)号：US5158684A

    公开(公告)日：1992-10-27

    申请号：US667849

    申请日：1991-03-12

    申请人： Roger D. Moulton ,  Alexander C. McDonald ,  James L. Soos

    发明人： Roger D. Moulton ,  Alexander C. McDonald ,  James L. Soos

    IPC分类号： C02F5/10 ,  C02F5/12 ,  C02F5/14

    CPC分类号： C02F5/10 ,  C02F5/12 ,  C02F5/14

    摘要： This invention relates to a method of transporting and inhibiting the deposition of copper and copper-iron materials on heat transfer devices in steam generating systems. This method utilizes a thermally stable chelant and a carboxylated polymeric dispersant as the treatment agents. Representative chemicals are 1,10-phenanthroline and 9:1 methacrylic acid/acrylic acid copolymer.

    摘要翻译： 本发明涉及一种在蒸汽发生系统中传输和抑制铜和铜 - 铁材料在传热装置上沉积的方法。 该方法利用热稳定螯合剂和羧化聚合物分散剂作为处理剂。 代表性的化学品是1,10-菲咯啉和9:1甲基丙烯酸/丙烯酸共聚物。