公开(公告)号：US20240287644A1

公开(公告)日：2024-08-29

申请号：US18043943

申请日：2022-10-12

申请人： KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY

发明人： Bin YANG ,  Baoqiang XU ,  Wenlong JIANG ,  Juhai DENG ,  Dachun LIU ,  Yang TIAN ,  Yifu LI ,  Lingxin KONG ,  Jia YANG

IPC分类号： C22B7/00 ,  C22B1/06 ,  C22B13/02 ,  C22B15/00 ,  C22B30/04 ,  C22B30/06 ,  C22B61/00 ,  C25C1/20

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.

公开(公告)号：US20240139809A1

公开(公告)日：2024-05-02

申请号：US18409798

申请日：2024-01-11

申请人： KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY

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

IPC分类号： B22F9/08 ,  B22F9/06

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.

公开(公告)号：US20230191478A1

公开(公告)日：2023-06-22

申请号：US17928471

申请日：2022-03-24

申请人： Kunming University of Science and Technology

发明人： Baoqiang XU ,  Tengteng SHI ,  Bin YANG ,  Wenlong JIANG ,  Yang TIAN ,  Lingxin KONG ,  Jinyang ZHAO ,  Fei WANG

IPC分类号： B22D43/00

CPC分类号： B22D43/007

摘要： Disclosed is a device for continuous treatment of materials containing volatile components, which belongs to the field of pyrometallurgical equipment. The device includes a feeding unit, a heating unit, a slag raking unit and a slag collecting unit. The feeding unit is configured to feed the materials with a push rod or in a spiral mode. The heating unit is provided with a square furnace body, and a first slag raking port is provided in the lower part of the furnace body. The slag collecting unit is provided with a slag discharging port at the lower portion thereof, is provided with a slag smashing port at the sidewall thereof, and is provided with a viewing port at the top thereof. The slag collecting unit and the heating unit are connected through a pipeline, thus achieving the pressure balance of the whole device during operation.