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    • 1. 发明公开
    • SYSTEM AND MEHTOD FOR REMOVING MINERALS FROM A BRINE USING ELECTRODIALYSIS
    • SYSTEM UND VERFAHREN ZUR ENTFERNUNG VON MINERALIEN AUS EINER SOLE MITTELS ELEKTRODIALYSE
    • EP3074349A4
    • 2017-07-12
    • EP14864230
    • 2014-11-24
    • ENVIRO WATER MINERALS COMPANY INC
    • WALLACE PAUL STEVEN
    • C02F9/02C01B7/01C01D1/38C02F1/469C02F5/00
    • C02F1/4693C01B7/035C01B7/0706C01B7/0737C01B11/062C01D1/04C01D1/28C01D1/38C01D3/08C01D3/16C01F11/24C02F1/04C02F1/20C02F1/42C02F1/44C02F1/441C02F1/442C02F1/66C02F5/08C02F9/00C02F2101/10C02F2103/06C02F2103/08C22B3/22C22B4/02C22B26/10Y02P10/234
    • A method includes treating a first brine stream including a plurality of minerals with an anti-scalant to produce a treated brine. The first brine stream is provided by a wastewater treatment system. The method also includes directing the treated brine to a first nanofiltration (NF) system disposed downstream from and fluidly coupled to the wastewater treatment system, generating a first NF permeate stream and a first NF non-permeate stream from the treated brine in the first NF system, directing the first NF non-permeate stream to a mineral removal system disposed downstream from and fluidly coupled to the first NF system, and removing the plurality of minerals from the first NF non-permeate stream to generate a first overflow stream in the mineral removal system. The first overflow stream comprises at least a portion of the plurality of minerals. The method also includes routing a first portion of the first overflow stream to a hydrochloric acid (HCl) and sodium hydroxide (NaOH) production system disposed downstream from and fluidly coupled to the mineral removal system. The HCl and NaOH production system includes a second NF system that may receive the first portion of the first overflow stream and may generate a second brine stream from the first portion of the first overflow stream. The method further includes directing the second brine stream to a first electrodialysis (ED) system disposed within the HCl and NaOH production system and fluidly coupled to the second NF system. The first ED system may generate HCl and NaOH from the second brine stream.
    • 一种方法包括用抗垢剂处理包含多种矿物的第一盐水流以产生处理过的盐水。 第一盐水流由废水处理系统提供。 该方法还包括将处理后的盐水引导至设置在废水处理系统下游并流体耦合至废水处理系统的第一纳滤(NF)系统,在第一NF中从处理过的盐水产生第一NF渗透物​​流和第一NF非渗透物流 系统,将第一NF非渗透物流引导至布置在第一NF系统下游并流体耦合至第一NF系统的矿物移除系统,并且从第一NF非渗透物流移除大量矿物质以在矿物中产生第一溢流物流 去除系统。 第一溢流流包含多种矿物的至少一部分。 该方法还包括将第一溢流料流的第一部分输送到设置在矿物质去除系统下游并流体耦合到该矿物质去除系统的盐酸(HCl)和氢氧化钠(NaOH)生产系统。 HCl和NaOH生产系统包括第二NF系统,其可以接收第一溢流流的第一部分并且可以从第一溢流流的第一部分生成第二盐水流。 该方法进一步包括将第二盐水流引导至布置在HCl和NaOH生产系统内并且流体耦合到第二NF系统的第一电渗析(ED)系统。 第一个ED系统可能会从第二个盐水流中产生HCl和NaOH。
    • 4. 发明公开
    • METHOD FOR EXTRACTING METAL IONS FROM RED MUD USING ULTRASONIC WAVES
    • VERFAHREN ZUR EXTRAKTION VON METALLIONEN AUS ROTSCHLAMM MITTELS ULTRASCHALLWELLEN
    • EP2889278A1
    • 2015-07-01
    • EP13831357.2
    • 2013-04-26
    • Lee, Chi-HunKo, Mi-Nyun
    • LEE, Chi-HunKO, Mi-NYUN
    • C04B33/138
    • C22B7/005C01F7/066C01P2002/72C01P2002/89C21B15/00C22B3/22C22B7/007C22B21/0023C22B21/04C22B26/10C22B26/20C22B34/1245C22B34/125Y02P10/234
    • Disclosed herein is a method of effectively extracting metal ions by sonication from red med that is waste remaining after extracting aluminum from bauxite. The method comprises the steps of: (a) introducing, into a reactor placed in a constant-temperature tank, (1) a neutralized red mud slurry and an acidic solution or (2) red mud slurry, distilled water and an acidic solution, to form a red mud slurry, and heating the constant-temperature tank to allow the red mud slurry to react while sonicating the red mud slurry, thereby extracting metal ions from the red mud; and (b) filtering a product resulting from step (a) to provide a filtrate and a red mud residue, and separating and recovering the filtrate and the red mud residue, wherein the sonication in step (a) is performed using an ultrasonic generator by applying ultrasonic waves to an ultrasonic tip placed in the constant-temperature tank.
    • 本发明公开了一种从铝土矿中提取铝后,通过红外线超声处理有效提取金属离​​子的方法。 该方法包括以下步骤:(a)将其放入置于恒温罐中的反应器中,(1)中和的红泥浆和酸性溶液或(2)红泥浆,蒸馏水和酸性溶液, 形成红泥浆,加热恒温罐,使红泥浆反应,同时对红泥浆进行超声处理,从红泥中提取金属离​​子; 和(b)过滤由步骤(a)得到的产物以提供滤液和红泥残渣,并分离和回收滤液和红泥残渣,其中步骤(a)中的超声处理使用超声波发生器 将超声波施加到放置在恒温槽中的超声波尖端。