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    • 2. 发明授权
    • Electrochemical processing
    • 电化学加工
    • US06726828B2
    • 2004-04-27
    • US10024490
    • 2001-12-21
    • Andrew Derek TurnerChristopher Peter Jones
    • Andrew Derek TurnerChristopher Peter Jones
    • C25B100
    • C22B13/04C22B3/165C25B1/00C25B1/21C25B1/30Y02P10/234
    • Using a solution mining procedure, an ore (10) is treated with a solution of acetic acid and hydrogen peroxide so as to form a leachate containing lead ions. Lead ions (and other metal ions such as zinc and manganese) are stripped (22, 24, 26) by solvent extraction from the leachate to form separate aqueous solutions. The aqueous solution containing lead ions is treated electrochemically in the anodic compartment of a separated electrochemical cell (42) to form a precipitate of lead oxide. Manganese dioxide can be produced similarly (72). A precipitate of zinc hydroxide can be formed in the cathode compartment of a separated electrochemical cell (56). In the cells (42, 72) extracting lead ions and manganese ions, the cathode compartment is used to generate hydrogen peroxide (for use in making the leachant), either directly or indirectly.
    • 使用溶液开采程序,用乙酸和过氧化氢溶液处理矿石(10),以形成含铅离子的渗滤液。 铅离子(和其他金属离子如锌和锰)通过溶剂萃取从渗滤液中剥离(22,24,26)以形成分离的水溶液。 含有铅离子的水溶液在分离的电化学电池(42)的阳极室中进行电化学处理,以形成氧化铅沉淀物。 二氧化锰可以类似地生产(72)。 可以在分离的电化学电池(56)的阴极室中形成氢氧化锌的沉淀。 在提取铅离子和锰离子的电池(42,72)中,阴极室用于直接或间接地产生过氧化氢(用于制造浸出液)。
    • 5. 发明授权
    • Method of treating a gas system
    • 处理气体系统的方法
    • US08475563B2
    • 2013-07-02
    • US12518538
    • 2007-11-28
    • Philip ChandlerChristopher Peter JonesPatrick FletcherChristopher Germain
    • Philip ChandlerChristopher Peter JonesPatrick FletcherChristopher Germain
    • B01D53/14
    • B01D53/68B01D61/48B01D2257/20B01D2258/0216C01B7/0706C01B7/195Y02C20/30
    • In a method of treating a gas stream, an aqueous scrubbing liquor is circulated through an essentially closed loop (20) comprising an electrochemical unit (48) for reducing the acidity of the liquor. A portion of the circulating liquor is diverted away from the closed loop (20) to a gas scrubbing unit (10). The gas stream enters the scrubbing unit (10), wherein an acid, for example HF and solid particulates, for example SiO2 particulates, within the gas stream dissolve in the diverted liquor. The diverted liquor is subsequently returned to the closed loop (20), and is replenished in the scrubbing unit (10) by fresh liquor diverted from the closed loop (20). A device (46) is provided for monitoring the acidity of the liquor at a location within the closed loop (20). The reduction in the acidity of the liquor by the electrochemical cell (48) is controlled depending on the monitored concentration. By controlling the acidity of the liquor, the solubility of the solid particulates within the diverted portion of the liquor may be optimised. This can increase the lifetime of one or more filter cartridges (42) located in the closed loop (20) upstream from the electrochemical unit (48).
    • 在处理气流的方法中,水洗涤液循环通过包含用于降低液体酸度的电化学单元(48)的基本上闭合的环(20)。 循环液的一部分从闭环(20)转移到气体洗涤单元(10)。 气流进入洗涤单元(10),其中气体流中的酸例如HF和固体颗粒,例如SiO 2颗粒溶解在转移液体中。 转移的液体随后返回到闭环(20),并且通过从闭环(20)转移的新鲜液体在洗涤单元(10)中补充。 提供了一种用于监测在闭环(20)内的位置处液体的酸度的装置(46)。 电化学电池(48)对液体酸度的降低根据监测浓度进行控制。 通过控制液体的酸度,可优化固体微粒在液体转向部分内的溶解度。 这可以增加位于电化学单元(48)上游的闭环(20)中的一个或多个滤筒(42)的寿命。
    • 6. 发明授权
    • Treatment of aqueous chemical waste
    • 化学废水处理
    • US08246804B2
    • 2012-08-21
    • US10572187
    • 2004-09-10
    • Christopher Peter JonesPeter James Mawle
    • Christopher Peter JonesPeter James Mawle
    • B01D61/00B01D53/04B01D61/48B01D17/06G01N27/00C02F1/461
    • B01D53/18B01D53/14
    • A method for the treatment of an aqueous stream containing both anionic and cationic species is provided. The method comprises the following steps. Circulating water continuously through an essentially closed loop, the loop incorporating an ion adsorption unit which, in turn, comprises a water permeable layer of an ion adsorbing material. Feeding an aqueous solution containing the anionic and the cationic species to the essentially closed loop. Passing the circulating water, including the aqueous solution containing the ionic and the cationic species, through the ion adsorbing material in the ion adsorption unit in a continuous manner. While at the same time applying an electric potential across the thickness of the layer of ion adsorbing material and removing from the ion adsorption unit more concentrated aqueous solutions of the separate ionic species. Discharging each of the aqueous solutions from the ion adsorption unit. Passing the more concentrated solution of the other ionic species through a reaction unit in which the ionic species reacts to form a water-insoluble solid material. Recycling eluate from the reaction unit to the ion adsorption unit; and, if necessary, adding a quantity of water to the closed loop, this quantity corresponding the quantity of aqueous solution removed from the reaction unit.
    • 提供了一种处理含有阴离子和阳离子物质的水流的方法。 该方法包括以下步骤。 循环水通过基本上闭合的环路连续循环,该回路包含离子吸附单元,该离子吸附单元又包含离子吸附材料的透水层。 将含有阴离子和阳离子物质的水溶液进料至基本上闭合的环路。 将含有离子型和阳离子型的水溶液的循环水以连续的方式通过离子吸附单元中的离子吸附材料。 同时在离子吸附材料层的厚度上施加电位并且从离子吸附单元去除分离的离子物质的更浓的水溶液。 从离子吸附单元排出各溶液。 将其他离子物质的更浓的溶液通过其中离子物质反应形成水不溶性固体物质的反应单元。 从反应单元回收洗脱液到离子吸附单元; 并且如果需要,向闭环加入一定量的水,该量对应于从反应单元去除的水溶液的量。
    • 9. 发明申请
    • METHOD OF TREATING A GAS SYSTEM
    • 处理气体系统的方法
    • US20100139481A1
    • 2010-06-10
    • US12518538
    • 2007-11-28
    • Philip ChandlerChristopher Peter JonesPatrick FletcherChristopher Germain
    • Philip ChandlerChristopher Peter JonesPatrick FletcherChristopher Germain
    • B01D53/68B01D61/48B01D47/00B01D53/96G05D21/00
    • B01D53/68B01D61/48B01D2257/20B01D2258/0216C01B7/0706C01B7/195Y02C20/30
    • In a method of treating a gas stream, an aqueous scrubbing liquor is circulated through an essentially closed loop (20) comprising an electrochemical unit (48) for reducing the acidity of the liquor. A portion of the circulating liquor is diverted away from the closed loop (20) to a gas scrubbing unit (10). The gas stream enters the scrubbing unit (10), wherein an acid, for example HF and solid particulates, for example SiO2 particulates, within the gas stream dissolve in the diverted liquor. The diverted liquor is subsequently returned to the closed loop (20), and is replenished in the scrubbing unit (10) by fresh liquor diverted from the closed loop (20). A device (46) is provided for monitoring the acidity of the liquor at a location within the closed loop (20). The reduction in the acidity of the liquor by the electrochemical cell (48) is controlled depending on the monitored concentration. By controlling the acidity of the liquor, the solubility of the solid particulates within the diverted portion of the liquor may be optimised. This can increase the lifetime of one or more filter cartridges (42) located in the closed loop (20) upstream from the electrochemical unit (48).
    • 在处理气流的方法中,水洗涤液循环通过包含用于降低液体酸度的电化学单元(48)的基本上闭合的环(20)。 循环液的一部分从闭环(20)转移到气体洗涤单元(10)。 气流进入洗涤单元(10),其中气体流中的酸例如HF和固体颗粒,例如SiO 2颗粒溶解在转移液体中。 转移的液体随后返回到闭环(20),并且通过从闭环(20)转移的新鲜液体在洗涤单元(10)中补充。 提供了一种用于监测在闭环(20)内的位置处液体的酸度的装置(46)。 电化学电池(48)对液体酸度的降低根据监测浓度进行控制。 通过控制液体的酸度,可优化固体微粒在液体转向部分内的溶解度。 这可以增加位于电化学单元(48)上游的闭环(20)中的一个或多个滤筒(42)的寿命。