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公开(公告)号：US20200208238A1
公开(公告)日：2020-07-02
申请号：US16357369
申请日：2019-03-19
Inventor： Bin Yang , Dachun Liu , Wenlong Jiang , Guozheng Zha , Baoqiang Xu , Weiping Dai , Yifu Li , Qingchun Yu , Xiumin Chen , Hongwei Yang , Yang Tian , Yong Deng , Fei Wang , Heng Xiong , Jia Yang , Tao Qu , Lingxin Kong
Abstract: A method for comprehensively processing noble lead provided and utilizes two instances of vacuum distillation to realize an open circuit of arsenic, lead, antimony and bismuth and the high-efficiency enrichment of precious metals of gold and silver, and can obtain elemental arsenic, a lead-bismuth-antimony alloy, a silver alloy and a copper alloy, respectively. The lead-bismuth-antimony alloy, the silver alloy and the copper alloy are processed by oxidation refining, electrorefining and chlorination refining to obtain refined lead, refined antimony, antimony trioxide, electrolytic silver and electrolytic copper, and to realize gold enrichment. The entire process has advantages of high metal direct yield, low energy consumption, short flow chart, simple equipment, etc., and vacuum distillation belongs to a physical process in which the alloy can be separated only by means of the difference in saturated vapor pressure between the metals, without generation of wastewater, waste gas and waste residue.
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2.发明公开公开(公告)号：US20240328022A1
公开(公告)日：2024-10-03
申请号：US18743648
申请日：2024-06-14
Applicant: Kunming University of Science and Technology
Inventor： Jia Yang , Kanwen Hou , baohong Wei , Jiancheng Qian , Baoqiang Xu , Bin Yang , Dachun Liu , Wenlong Jiang , Yong Deng , Yifu Li , Yang Tian , Heng Xiong , Fei Wang , Qingchun Yu , Hongwei Yang
CPC classification number: C25C7/02 , C25C1/02 , C25C1/10 , C25C1/12 , C25C1/14 , C25C1/16 , C25C1/18 , C25C1/22
Abstract: This invention presents an electrochemical metallurgical technique for extracting metals and sulfur from metal sulfides, offering an adjustable composition and mechanical properties during electrode preparation. The metal sulfide anode, submerged in an electrolyte with a cathode made of materials like titanium, copper, stainless steel, lead, zinc, aluminum or graphite, undergoes electrolysis. This process oxidizes sulfur in the metal sulfide to the anode and releases metal ions into the electrolyte, where they're reduced at the cathode. The method yields metal at the cathode and sulfur at the anode, with minimal environmental impact, low investment, and straightforward process.
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公开(公告)号：US10982299B2
公开(公告)日：2021-04-20
申请号：US16357369
申请日：2019-03-19
Inventor： Bin Yang , Dachun Liu , Wenlong Jiang , Guozheng Zha , Baoqiang Xu , Weiping Dai , Yifu Li , Qingchun Yu , Xiumin Chen , Hongwei Yang , Yang Tian , Yong Deng , Fei Wang , Heng Xiong , Jia Yang , Tao Qu , Lingxin Kong
Abstract: A method for comprehensively processing noble lead provided and utilizes two instances of vacuum distillation to realize an open circuit of arsenic, lead, antimony and bismuth and the high-efficiency enrichment of precious metals of gold and silver, and can obtain elemental arsenic, a lead-bismuth-antimony alloy, a silver alloy and a copper alloy, respectively. The lead-bismuth-antimony alloy, the silver alloy and the copper alloy are processed by oxidation refining, electrorefining and chlorination refining to obtain refined lead, refined antimony, antimony trioxide, electrolytic silver and electrolytic copper, and to realize gold enrichment. The entire process has advantages of high metal direct yield, low energy consumption, short flow chart, simple equipment, etc., and vacuum distillation belongs to a physical process in which the alloy can be separated only by means of the difference in saturated vapor pressure between the metals, without generation of wastewater, waste gas and waste residue.
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4.发明申请公开(公告)号：US20190284658A1
公开(公告)日：2019-09-19
申请号：US16352199
申请日：2019-03-13
Applicant: Kunming University of Science and Technology
Inventor： Yifu Li , Zhenghao Pu , Bin Yang , Baoqiang Xu , Dachun Liu , Yang Tian , Wenlong Jiang , Neng Xiong , Huan Zhang
Abstract: A device is provided for fractional condensation of an arsenic-lead vapor mixture and an application method thereof. The device includes a vacuumizing device, a flange, temperature measuring devices, a graded vacuum furnace body, a quartz tube, a push rod, a control cabinet, a heating zone and recycled foil. The length of the quartz tube is 1.2-2 m; the length of the heating zone is 0.15-0.25 m; and the quartz tube is provided with one temperature measuring device every 2-3 cm. The device forms a certain temperature gradient in the quartz tube, so that a material condenses in the corresponding temperature range, thereby achieving the purpose of high-efficiency separation.
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