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    MAGNESIUM RECOVERY METHOD AND MAGNESIUM RECOVERY APPARATUS
    4.
    发明申请
    MAGNESIUM RECOVERY METHOD AND MAGNESIUM RECOVERY APPARATUS 审中-公开
    MAGNESIUM恢复方法和镁恢复装置

    公开(公告)号：US20130161200A1

    公开(公告)日：2013-06-27

    申请号：US13820630

    申请日：2011-09-06

    申请人： Tatsushi Iwamoto ,  Kenichi Akamine ,  Junichi Okuyama

    发明人： Tatsushi Iwamoto ,  Kenichi Akamine ,  Junichi Okuyama

    IPC分类号： C25B1/20

    CPC分类号： C02F1/46104 ,  C01F5/14 ,  C02F1/461 ,  C02F1/5236 ,  C02F9/00 ,  C02F2201/46115 ,  C02F2201/4618 ,  C02F2209/06 ,  C25B1/04 ,  C25B1/20 ,  C25B15/08 ,  Y02E60/366 ,  Y02P20/133 ,  Y02P20/134 ,  Y02W10/37

    摘要： In the magnesium recovery method and magnesium recovery apparatus, anode electrolyzed water (7a) and cathode electrolyzed water (7b) produced by electrolysis of seawater are separated, alkaline material is inputted into the anode electrolyzed water to adjust pH, magnesium is precipitated as magnesium hydroxide in the cathode electrolyzed water, and recovered, and the anode electrolyzed water after pH adjustment and cathode electrolyzed water after carbonate fixation are intermixed, and discharged in a state where a pH of the intermixed water is identical to a pH of the seawater. As a result, magnesium can be recovered from seawater while minimizing impact on the environment.

    摘要翻译： 在镁回收方法和镁回收装置中，阳极电解水（7a）和由电解海水产生的阴极电解水（7b）分离，将碱性物质输入阳极电解水中以调节pH，镁以氢氧化镁 在阴极电解水中回收，pH调节后的阳极电解水和碳酸盐固定后的阴极电解水混合后，在混合水的pH与海水的pH相同的状态下排出。 因此，镁可以从海水中回收，同时减少对环境的影响。

    Electrolytic process for treating aqueous waste streams
    7.
    发明授权
    Electrolytic process for treating aqueous waste streams 失效
    用于处理含水废水流的电解过程

    公开(公告)号：US6132590A

    公开(公告)日：2000-10-17

    申请号：US88195

    申请日：1998-06-01

    申请人： Stephen W. Moran ,  John R. Jackson

    发明人： Stephen W. Moran ,  John R. Jackson

    IPC分类号： B01D53/14 ,  C10G19/08 ,  C25B1/16 ,  C25B1/20 ,  C25B1/00

    CPC分类号： C25B1/16 ,  B01D53/1418 ,  B01D53/1425 ,  C10G19/08 ,  C25B1/20

    摘要： An electrochemical process for the production of a hydroxide solution and a sulfate by the electrolysis of a waste aqueous mixture of oxidizable sulfur impurities in the anode compartment of at least one electrolytic cell while producing a hydroxide solution in the cathode compartment of the cell. The process is particularly applicable to the treatment of spent caustic solutions obtained by scrubbing a hydrocarbon process stream contaminated with oxidizable sulfur impurities. The electrolytic cell used in the electrolysis process of the invention can use either a porous membrane or a cationic permselective membrane to separate the anode and cathode compartments of the electrolysis cell. The electrolysis cell can be monopolar or bipolar and when bipolar, the bipolar electrodes if dissimilar, or the respective anode and cathode current collectors if dissimilar, which are attached thereto, are electrically connected by bonding with a conductive polymer or are joined by welding with or without an intermediate metal layer therebetween. Control of pH in the anolyte compartment of the electrolytic cell can be achieved by passing a selected amount of catholyte to the anolyte compartment. Pre-treatment with oxygen produced in the anolyte compartment of the cell avoids release of gaseous products from the anolyte compartment and increases process efficiency. Where the process is conducted in multiple electrolytic cells, such cells are hydraulically connected in a cascading series.

    摘要翻译： 一种用于通过在至少一个电解池的阳极室中电解可氧化硫杂质的废水性混合物，同时在电池的阴极室中产生氢氧化物溶液来生产氢氧化物溶液和硫酸盐的电化学方法。 该方法特别适用于通过洗涤被可氧化的硫杂质污染的烃工艺流而获得的废碱溶液的处理。 在本发明的电解方法中使用的电解槽可以使用多孔膜或阳离子选择性选择膜来分离电解槽的阳极室和阴极室。 电解电池可以是单极的或双极的，并且当双极性时，双极电极如果不相似，或者相关的阳极和阴极集电器（如果不相似）通过与导电聚合物的结合而电连接，或者通过焊接或/ 其间没有中间金属层。 可以通过将选定量的阴极电解液通入阳极电解液室来实现对电解池的阳极电解液室中的pH的控制。 在细胞的阳极电解液室中产生的氧的预处理避免了气体产物从阳极电解液室释放并提高了工艺效率。 当该工艺在多个电解槽中进行时，这种电池在级联系列中液压连接。