Electrochemical method for high-temperature molten salt electrolysis in humid atmosphere

    公开(公告)号:US11897780B2

    公开(公告)日:2024-02-13

    申请号:US17040895

    申请日:2019-07-09

    发明人: Ali Reza Kamali

    摘要: Disclosed is an electrochemical method for high-temperature molten salt electrolysis in humid atmosphere. The method involves preparing hydrogen gas, metals/alloys, metal oxide compounds and metal hydrides in humid high-temperature molten salt environment. Hydrogen gas is generated by electrolyzing water in a molten salt electrolyte at above 100° C., and with a working cathode being a solid-state oxide pellet and a voltage applied to the electrolyzing cell being far lower than that in a direct electro-deoxidation process, the hydrogen gas generated reduces solid-state oxide cathodes to produce metals. The hydrogen ions in the molten salt can be prepared by hydrolysis reaction of the molten salt in a water vapor containing atmosphere. Corresponding metals or alloys or metal oxide compounds can be prepared by reducing iron oxide, molybdenum oxide, tantalum oxide, nickel oxide, copper oxide, titanium oxide or corresponding compound oxides and the like.

    METHODS OF FORMING ALLOYS BY REDUCING METAL OXIDES

    公开(公告)号:US20190323135A1

    公开(公告)日:2019-10-24

    申请号:US16388272

    申请日:2019-04-18

    IPC分类号: C25C5/04 C25C7/02

    摘要: A method of forming an alloy includes disposing a first metal oxide and a second metal oxide in a molten salt. The molten salt is in contact with a working electrode and a counter electrode. An electrical potential is applied between the counter electrode and the working electrode to co-reduce the first metal oxide and the second metal oxide to form a first metal and a second metal, respectively.

    PRODUCTION METHOD FOR METAL MICROPARTICLE
    5.
    发明申请
    PRODUCTION METHOD FOR METAL MICROPARTICLE 有权
    金属微生物的生产方法

    公开(公告)号:US20130228469A1

    公开(公告)日:2013-09-05

    申请号:US13882816

    申请日:2011-10-18

    IPC分类号: C25C5/04

    摘要: Provided is a method for producing fine metal particles, wherein metal oxide powders can be used as a source of fine metal particles, and a method for producing fine metal particles can be provided avoiding the contamination of the molten salt electrolyte bath and the produced fine metal particles. A method for producing fine metal particles (112) is provided which comprises generating cathodic discharge outside and over the surface of an electrolyte bath (100) comprising metal oxide powders (110) suspended therein, whereby the metal oxide powders (110) are electrochemically reduced into the fine metal particles (112).

    摘要翻译: 提供一种金属微粒的制造方法,其中可以使用金属氧化物粉末作为金属微粒的来源,并且可以提供金属微粒的制造方法,以避免熔融盐电解液的污染和生成的细金属 粒子。 提供了一种生产精细金属颗粒(112)的方法,其包括在包含悬浮在其中的金属氧化物粉末(110)的电解质浴(100)的外表面上产生阴极放电,由此金属氧化物粉末(110)被电化学还原 进入细金属颗粒(112)。

    Agricultural water-recycling system comprising Fe-ionizing module and method for recycling agricultural water using the same
    6.
    发明授权
    Agricultural water-recycling system comprising Fe-ionizing module and method for recycling agricultural water using the same 失效
    包含Fe电离模块的农业水循环系统及使用该电离模块的农用水回收方法

    公开(公告)号:US08361327B2

    公开(公告)日:2013-01-29

    申请号:US12697133

    申请日:2010-01-29

    摘要: The present invention relates to an agricultural water-recycling system comprising an iron (Fe)-ionizing module and a method of recycling agricultural water using the same, and more particularly to an agricultural water-recycling system comprising an iron (Fe)-ionizing module and a method of recycling agricultural water using the same, in which phosphorus (P) contained in effluent from a sewage treatment plant is removed by using the iron (Fe)-ionizing module comprising an iron (Fe)-ionizing electrode consisting of an iron plate serving as a cathode and a titanium plate serving as an anode and an electrode-washing device. According to the present invention, an effluent treatment process of a sewage treatment plant and an electrode washing process needed for iron ionization can be simultaneously performed, the iron ionization is controlled depending on the concentration of phosphorus contained in the effluent, thereby improving effluent treatment efficiency.

    摘要翻译: 本发明涉及一种包含铁(Fe)电解模块的农业水循环系统及其使用方法,更具体地涉及一种包括铁(Fe)电解模块 以及使用该方法回收利用来自污水处理厂的流出物中含有的磷(P)的方法,其中使用含铁(Fe)去污电极的铁(Fe) 用作阴极的板和用作阳极的钛板和电极清洗装置。 根据本发明,可以同时进行污水处理厂的污水处理工艺和铁电离所需的电极清洗工序,根据流出物中含有的磷的浓度来控制铁离子化,从而提高废水处理效率 。

    FEEDSTOCK
    7.
    发明申请
    FEEDSTOCK 审中-公开

    公开(公告)号:US20120156492A1

    公开(公告)日:2012-06-21

    申请号:US13378607

    申请日:2010-06-18

    IPC分类号: C25C5/04 C22C1/00 C01G23/047

    摘要: The invention relates to a feedstock for reduction in an electrolytic cell, for example a non-metallic feedstock that can be reduced to metal on a commercial scale. The feedstock comprises a plurality of three-dimensional elements which are shaped such that a volume of the feedstock has between 35% and 90% free space (not including any microscopic porosity of the elements). The elements are also shaped as randomly-packable elements to minimise any settling, ordering or alignment of the feedstock, which would otherwise hinder or prevent fluid flow and/or current flow through the feedstock.

    摘要翻译: 本发明涉及用于还原电解池的原料,例如可以以商业规模还原成金属的非金属原料。 原料包括多个三维元件,其被成形为使得原料的体积具有35%至90%的自由空间(不包括元件的任何微观孔隙率)。 这些元件还被成形为随机包装的元件,以最小化原料的任何沉降,排序或对准,否则这将妨碍或阻止流体流动和/或电流流过原料。

    Three-electrode metal oxide reduction cell
    8.
    发明授权
    Three-electrode metal oxide reduction cell 有权
    三电极金属氧化物还原电池

    公开(公告)号:US06911134B2

    公开(公告)日:2005-06-28

    申请号:US10236133

    申请日:2002-09-06

    IPC分类号: C25C3/00 C25C3/34 C25C5/04

    CPC分类号: C25C3/00 C25C3/34

    摘要: A method of electrochemically reducing a metal oxide to the metal in an electrochemical cell is disclosed along with the cell. Each of the anode and cathode operate at their respective maximum reaction rates. An electrolyte and an anode at which oxygen can be evolved, and a cathode including a metal oxide to be reduced are included as is a third electrode with independent power supplies connecting the anode and the third electrode and the cathode and the third electrode.

    摘要翻译: 与电池一起公开了一种在电化学电池中电化学还原金属氧化物到金属的方法。 阳极和阴极中的每一个以它们各自的最大反应速率操作。 包括能够放出氧的电解质和阳极以及包含待还原的金属氧化物的阴极,包括连接阳极和第三电极以及阴极和第三电极的独立电源的第三电极。

    Process for producing transition metal powders by electrolysis in melted
salt baths
    9.
    发明授权
    Process for producing transition metal powders by electrolysis in melted salt baths 失效
    在熔融盐浴中通过电解生产过渡金属粉末的方法

    公开(公告)号:US4770750A

    公开(公告)日:1988-09-13

    申请号:US99317

    申请日:1987-08-20

    申请人: Marcel Armand

    发明人: Marcel Armand

    CPC分类号: C25C5/04

    摘要: The invention relates to a process for producing transition metal powders by electrolysis in melted salt baths. This process is characterized in that electrolysis is performed in such a way that the deposition voltage of the transition metal is 0.1 to 0.4V below that of the alkali metal or alkaline earth metal which it is the easiest to reduce.It is used in the production of powders having dimensions between a few fractions of a micron and approximately 200 microns from metals belonging to groups IVb, Vb and VIb of the periodic classification of metals, such as e.g. titanium, zirconium and hafnium.

    摘要翻译: PCT No.PCT / FR87 / 00001 Sec。 371日期1987年8月20日 102(e)1987年8月20日PCT PCT 1987年1月5日PCT公布。 出版物WO87 / 04192 日期1987年7月16日。本发明涉及通过在熔融盐浴中电解生产过渡金属粉末的方法。 该方法的特征在于,以使得过渡金属的沉积电压比最容易还原的碱金属或碱土金属的沉积电压低0.1至0.4V的方式进行电解。 用于生产尺寸介于金属周期分类IVb,Vb和VIb族的金属的几分之几微米至约200微米之间的粉末, 钛,锆和铪。

    Method of treating rock to recover metal, oxygen, and water
    10.
    发明授权
    Method of treating rock to recover metal, oxygen, and water 失效
    处理岩石以回收金属,氧气和水的方法

    公开(公告)号:US4569733A

    公开(公告)日:1986-02-11

    申请号:US633126

    申请日:1984-07-20

    申请人: Eduard Pinkhasov

    发明人: Eduard Pinkhasov

    CPC分类号: C25C3/00

    摘要: Rock is melted between electrodes and the resulting melt is subjected to electrolysis to recover oxygen and selected metals therefrom and to produce a melt of a unique composition so that it can be cast to produce structures with various properties.

    摘要翻译: 岩石在电极之间熔化,所得熔体经受电解以从其中回收氧气和选择的金属,并产生独特组合物的熔体,使得其可以铸造以产生具有各种性能的结构。