PROCESS AND SYSTEM FOR PRODUCING SODIUM CHLORIDE BRINE
    62.
    发明申请
    PROCESS AND SYSTEM FOR PRODUCING SODIUM CHLORIDE BRINE 审中-公开
    氯化钠生产工艺及系统

    公开(公告)号:US20150352498A1

    公开(公告)日:2015-12-10

    申请号:US14422161

    申请日:2012-08-16

    申请人: Ahilan RAMAN

    发明人: Ahilan RAMAN

    摘要: The invention provides a process and system for producing sodium chloride brine suitable for use in a sodium hydroxide production plant having a chlor-alkali membrane cell, said process comprising (a) nanofiltering feed water containing dissolved sodium chloride to produce a permeate and a retentate, wherein the retentate comprises at least 85% of any divalent ions from the feed water; and (b) purifying the permeate to produce the sodium chloride brine suitable for use in a sodium hydroxide production plant having a chlor-alkali membrane cell, wherein step (b) comprises electrodialyzing the permeate to produce a concentrate having a greater concentration of total dissolved salts and a smaller proportion of divalent ions than the permeate and a diluent comprising water and divalent ions separated from the permeate. The invention also provides a process and system for producing sodium hydroxide, and a process for the commercial production of soda ash.

    摘要翻译: 本发明提供了一种适用于具有氯 - 碱膜细胞的氢氧化钠生产设备的氯化钠盐水的生产方法和系统,所述方法包括(a)对含有溶解的氯化钠的进料水进行纳滤,产生渗透物和渗余物, 其中所述渗余物包含至少85%的来自所述给水的任何二价离子; 和(b)纯化渗透物以产生适合用于具有氯 - 碱膜细胞的氢氧化钠生产设备的氯化钠盐水,其中步骤(b)包括电渗析渗透物以产生浓度较高的总溶解浓度 盐和比渗透物更少的二价离子比例,以及包含水和从渗透物分离的二价离子的稀释剂。 本发明还提供了用于生产氢氧化钠的方法和系统,以及商业生产苏打灰的方法。

    SYSTEM AND METHOD FOR TREATMENT OF PRODUCED WATERS
    64.
    发明申请
    SYSTEM AND METHOD FOR TREATMENT OF PRODUCED WATERS 有权
    用于处理生产水的系统和方法

    公开(公告)号:US20140069821A1

    公开(公告)日:2014-03-13

    申请号:US14083200

    申请日:2013-11-18

    摘要: The systems and methods disclosed herein process produced/flowback water, such as high total dissolved solids produced water, to generate high purity, high value products with little to no waste. The generated high purity, high value products include caustic soda, hydrochloric acid, and/or sodium hypochlorite. Further, the methods and systems disclosed herein generate high quality brine for electrolysis through the systematic removal of contaminants such as but not limited to suspended solids, iron, sulfides, barium, radium, strontium, calcium, magnesium, manganese, fluoride, heavy metals, organic carbon, recoverable hydrocarbons, silica, lithium, and/or nitrogen containing compounds. Further, some products generated by the systems and methods disclosed herein may be recovered and reutilized or sold for other uses, such as carbon dioxide, calcium oxide, chlorine, magnesium oxide, calcium carbonate, and/or barium sulfate.

    摘要翻译: 本文公开的系统和方法处理生产/回流水,例如高总溶解固体产生的水,以产生具有很少或没有浪费的高纯度,高价值的产品。 产生的高纯度,高价值产品包括苛性钠,盐酸和/或次氯酸钠。 此外,本文公开的方法和系统通过系统地除去污染物(例如但不限于悬浮固体,铁,硫化物,钡,镭,锶,钙,镁,锰,氟化物,重金属, 有机碳,可回收烃,二氧化硅,锂和/或含氮化合物。 此外,通过本文公开的系统和方法产生的一些产品可以被回收并再利用或出售用于其他用途,例如二氧化碳,氧化钙,氯,氧化镁,碳酸钙和/或硫酸钡。

    Production of Alkali Bicarbonate and Alkali Hydroxide From Alkali Carbonate in an Electrolyte Cell.
    66.
    发明申请
    Production of Alkali Bicarbonate and Alkali Hydroxide From Alkali Carbonate in an Electrolyte Cell. 审中-公开
    在电解槽中碱式碳酸盐和碱性氢氧化物的生产。

    公开(公告)号:US20110240484A1

    公开(公告)日:2011-10-06

    申请号:US13078775

    申请日:2011-04-01

    IPC分类号: C25B1/14 C25B1/16

    摘要: Alkali bicarbonate is synthesized in an electrolytic cell from alkali carbonate. The electrolytic cell includes an alkali ion conductive membrane positioned between an anolyte compartment configured with an anode and a catholyte compartment configured with a cathode. The alkali conductive membrane selectively transports alkali ions and prevents the transport of anions produced in the catholyte compartment. An aqueous alkali carbonate solution is introduced into the anolyte compartment and electrolyzed at the anode to produce carbon dioxide and/or hydrogen ions which react with alkali carbonate to produce alkali bicarbonate. The alkali bicarbonate is recovered by filtration or other separation techniques. When the catholyte solution includes water, pure alkali hydroxide is produced. When the catholyte solution includes methanol, pure alkali methoxide is produced.

    摘要翻译: 在碱金属碳酸盐的电解池中合成碱金属碳酸氢盐。 电解池包括位于由阳极构成的阳极电解室和由阴极构成的阴极电解液室之间的碱性离子传导膜。 碱性导电膜选择性地输送碱离子并防止在阴极电解液室中产生的阴离子的输送。 将碱金属碳酸盐水溶液引入阳极电解液室中并在阳极处电解以产生与碱金属碳酸盐反应产生碱式碳酸氢盐的二氧化碳和/或氢离子。 通过过滤或其他分离技术回收碱金属碳酸氢盐。 当阴极电解液包含水时,产生纯碱氢氧化物。 当阴极电解液包含甲醇时,产生纯碱金属甲醇盐。

    Method for making lithium aluminide compound in atmospheric environment
    68.
    发明申请
    Method for making lithium aluminide compound in atmospheric environment 审中-公开
    在大气环境中制备铝化铝化合物的方法

    公开(公告)号:US20080237055A1

    公开(公告)日:2008-10-02

    申请号:US11819439

    申请日:2007-06-27

    IPC分类号: C25B1/14

    CPC分类号: C25C3/02 C22C1/002 C22C21/00

    摘要: A method for making lithium aluminide compound in atmospheric environment at a working temperature includes accomplishing a diffusive electrolysis in an electrolyte composed of lithium chloride, potassium chloride and calcium chloride, exerting a direct current (voltage) on the electrolyte to reduce the lithium ions into lithium atoms on the surface of an rotative aluminum cathode, and subsequently the lithium atoms diffusing into the aluminum cathode during the electrolysis.

    摘要翻译: 在工作温度下在大气环境中制备铝锂化合物的方法包括在由氯化锂,氯化钾和氯化钙组成的电解质中进行扩散电解,在电解质上施加直流电(电压)以将锂离子还原为锂 原子在铝电解铝阴极表面,随后在电解过程中锂原子扩散到铝阴极。

    Method and device for producing an alkali metal hypochlorite solution
    69.
    发明申请
    Method and device for producing an alkali metal hypochlorite solution 审中-公开
    生产碱金属次氯酸盐溶液的方法和装置

    公开(公告)号:US20080017519A1

    公开(公告)日:2008-01-24

    申请号:US11879962

    申请日:2007-07-19

    IPC分类号: C25B1/14 C25B15/02 C25B9/02

    摘要: The invention provides a method and a device for the production of an alkali metal hypochlorite solution, in particular a sodium hypochlorite solution, having at least one non-divided electrolytic cell (12), means (20, 22, 24, 26) for supplying a brine solution into the electrolytic cell (12) at a defined volumetric flow rate and a defined salt concentration, and having an a.c. voltage source (18) for the production of current across the electrolytic cell (12). The current intensity is adjusted to a fixed value so that the concentration of chlorate produced during electrolysis is limited to a maximum of 1.5 g/l, preferably to 0.6 g/l.

    摘要翻译: 本发明提供一种用于生产碱金属次氯酸盐溶液,特别是次氯酸钠溶液的方法和装置,其具有至少一个未分解的电解池(12),用于供应的装置(20,22,24,26) 盐水溶液以规定的体积流速和限定的盐浓度进入电解槽(12),并具有交流电 电压源(18),用于产生跨过电解池(12)的电流。 将电流强度调整为固定值,使得电解过程中产生的氯酸盐的浓度最大限制在1.5g / l,优选为0.6g / l。

    Hydrogen-assisted electrolysis processes
    70.
    发明授权
    Hydrogen-assisted electrolysis processes 失效
    氢辅助电解法

    公开(公告)号:US07108777B2

    公开(公告)日:2006-09-19

    申请号:US10388197

    申请日:2003-03-13

    IPC分类号: C25C3/02 C25B1/14 C25B1/16

    CPC分类号: C25C1/04 C25B1/14 C25C3/02

    摘要: A process and electrolytic cell for reducing in an ionic alkali metal compound, the cell containing anode and cathode electrodes, by supplying an electrolyte containing the alkali metal compound to the cell, applying an electric voltage to the cell to reduce said alkali metal compound at the cathode, and passing hydrogen or a hydrogen containing gas to at least one electrode while the compound is reduced at the cathode.

    摘要翻译: 一种用于还原离子碱金属化合物的方法和电解槽,含有阳极和阴极的电池,通过向电池提供含有碱金属化合物的电解质,向电池施加电压以在所述电池中还原所述碱金属化合物 阴极,并将氢气或含氢气体通入至少一个电极,同时化合物在阴极处被还原。