Methods and Compositions for Isolation of Copper Group Metals

    公开(公告)号:US20200277683A1

    公开(公告)日:2020-09-03

    申请号:US16647337

    申请日:2018-09-14

    Applicant: LIXIVIA, INC.

    Inventor: Michael D WYRSTA

    Abstract: Compositions and methods are provided that provide recovery of metals such as copper, nickel, cobalt, indium, and other metals are recovered from mine tailings, in situ ore bodies, or postconsumer waste. An amine-containing lixiviant is utilized to generate an aqueous solution of the desired metal from insoluble salts present in the source material. Metals can be recovered and further purified by various processes, including extraction into an immiscible organic solvent, electrowinning, crystallization, and chemical reduction. Spent lixiviant can be regenerated and recycled back into the metal recovery process.

    METHOD FOR RECYCLING COPPER INDIUM GALLIUM SELENIUM MATERIALS

    公开(公告)号:US20200270724A1

    公开(公告)日:2020-08-27

    申请号:US16067943

    申请日:2016-12-26

    Abstract: A method for recycling copper indium gallium selenium materials comprises the steps of sulphating roasting, acid dissolution, extraction and electrolysis of metal copper, production of a gallium hydroxide deposition, replacement of indium, and the like. In the method, deselenization is carried by using sulphating roasting, and residues after roasting are oxidizing slags capable of being directly subjected to acid dissolution, thereby reducing acid gas pollution; in addition, copper is extracted by using a copper extractant, the separation effect is good and costs are low, the extracted copper can be directly electrolyzed, so as to obtain high-purity metal copper; and in another aspect, in the method, alkali separation of gallium is carried out, separation between indium and gallium can be implemented by merely adjusting the pH of a solution, thereby resolving the problem of co-extraction in the extraction of indium and gallium and the separation between indium and gallium, the separation effect is good, the purities of obtained indium and gallium products are high.

    METHOD FOR CONCENTRATING METAL COMPOUND
    10.
    发明申请
    METHOD FOR CONCENTRATING METAL COMPOUND 审中-公开
    浓缩金属化合物的方法

    公开(公告)号:US20150225812A1

    公开(公告)日:2015-08-13

    申请号:US14424830

    申请日:2013-09-02

    Inventor: Takaya Akashi

    Abstract: To concentrate metals such as gallium from ore which is extracted from mines or used electronic components while suppressing the quantity of waste liquid generated is difficult. A first solid metal compound which contains a metal selected from a group consisting of gallium, indium, germanium, tellurium, and cesium at a first metal content in a mixture of the first solid metal compound is reduced to form a gaseous metal compound, the gaseous metal compound is oxidized to form a second solid metal compound, and the second solid metal compound is collected at a second metal content which is higher than the first metal content.

    Abstract translation: 从矿山提取的矿石或使用电子元件的矿石中析出镓等金属,难以抑制产生的废液的量。 在第一固体金属化合物的混合物中含有选自第一金属化合物中的第一金属含量的镓,铟,锗,碲和铯的金属的第一固体金属化合物被还原以形成气态金属化合物,气态 金属化合物被氧化以形成第二固体金属化合物,并且以比第一金属含量高的第二金属含量收集第二固体金属化合物。

Patent Agency Ranking