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公开(公告)号：US20240287644A1
公开(公告)日：2024-08-29
申请号：US18043943
申请日：2022-10-12
发明人： Bin YANG , Baoqiang XU , Wenlong JIANG , Juhai DENG , Dachun LIU , Yang TIAN , Yifu LI , Lingxin KONG , Jia YANG
CPC分类号： C22B7/007 , C22B1/06 , C22B7/001 , C22B13/025 , C22B15/0017 , C22B15/0056 , C22B15/0071 , C22B30/04 , C22B30/06 , C22B61/00 , C25C1/20
摘要： Provided is a recovery method for valuable metals in copper anode slime. By using the recovery method of the disclosure, selenium, copper, tellurium, arsenic, lead, bismuth, and precious metals gold and silver in the copper anode slime are recovered. The method adopts two-step vacuum carbothermal reduction to replace reduction smelting of anode slime and stepwise blowing of noble lead in the traditional pyrometallurgy, and avoids the emission of arsenic-containing soot in the traditional process. The recovered gold-rich residue contains almost no base metals such as lead, bismuth, antimony, and arsenic. After subjecting the gold-rich residue to leaching gold by chlorination and reduction, a gold powder could be obtained therefrom with a lower content of base metals than traditional processes. Therefore, the method greatly reduces the amount of produced slag, shortens the production cycle, and reduces the loss of precious metals in the slag.
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2.发明公开公开(公告)号：US20240139809A1
公开(公告)日：2024-05-02
申请号：US18409798
申请日：2024-01-11
发明人： Yang TIAN , Dong LIANG , Bin YANG , Baoqiang XU , Dachun LIU , Fei WANG , Yifu LI , Wenlong JIANG , Yong DENG , Jian WU , Lipeng WANG
CPC分类号： B22F9/08 , B22F2009/065 , B22F2009/0812 , B22F2203/11 , B22F2203/13 , B22F2301/058
摘要： An apparatus and method for preparing high-purity spherical magnesium and/or high-purity magnesium powder are provided. The apparatus includes a vertical furnace body, a heating zone, and a condensing zone, where a periphery of the condensing zone is provided with a first thermal insulation device and a second thermal insulation device sequentially from bottom to top, and each of the first thermal insulation device and the second thermal insulation device is removably arranged; the periphery of the condensing zone is further provided with a liquid cooling device; a gas inlet and a gas outlet are formed in the condensing zone; and an inner wall of the condensing zone is provided with an arrangement structure configured to arrange a collection device. A heating temperature of a material and condensation conditions in the condensing zone are controlled to make an evaporated magnesium vapor condensed on the collection device in the condensing zone.
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