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公开(公告)号：US20240401169A1
公开(公告)日：2024-12-05
申请号：US18799957
申请日：2024-08-09
Applicant: Kunming University of Science and Technology
Inventor： Yang Tian , Haosong Yu , Bin Yang , Xiumin Chen , Baoqiang Xu , Wenlong Jiang , Yifu Li , Fei Wang , Yong Deng , Lipeng Wang , Dong Liang , Dong Wang
Abstract: The present disclosure relates to a device and method for recovering arsenic and gallium. A closed furnace body is in communication with a vacuuming pipe, and the vacuuming pipe is connected to a vacuuming mechanism. The closed furnace body includes a first furnace body, a second furnace body and a third furnace body. A first heating mechanism and a graphite crucible are arranged inside the first furnace body, the first heating mechanism being used for heating the graphite crucible. A first collection cylinder is in communication with a second collection cylinder. The device for recovering arsenic and gallium of the present disclosure is arranged with a structure for realizing directional condensation of gallium arsenide clusters and arsenic vapor, respectively, to realize high-purity recovery of arsenic and gallium.
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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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Patent Agency Ranking
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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公开(公告)号：US11247197B1
公开(公告)日：2022-02-15
申请号：US17137028
申请日：2020-12-29
Applicant: Kunming University of Science and Technology
Inventor： Kai Li , Yaxi Zhang , Ping Ning , Chi Wang , Fei Wang , Xin Sun , Yixing Ma , Xin Song , Qian Li
Abstract: The present disclosure relates to the technical field of industrial waste gas purification, in particular to a core-shell structured catalyst, a preparation method and use thereof. The present disclosure provides a core-shell structured catalyst including a metal oxide-molecular sieve as a core and porous silica (SiO2) as a shell, where the metal oxide-molecular sieve includes a molecular sieve and a metal oxide loaded on the molecular sieve, the metal oxide includes an oxide of a first metal and an oxide of a second metal, the first metal is Fe, Cu, Ti, Ni or Mn, and the second metal is Ce or La. The core-shell structured catalyst of the present disclosure can enable effective removal of HCN and AsH3 at the same time with a stable effect, and no secondary pollution.
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公开(公告)号：US11801552B2
公开(公告)日：2023-10-31
申请号：US17928471
申请日：2022-03-24
Applicant: Kunming University of Science and Technology
Inventor： Baoqiang Xu , Tengteng Shi , Bin Yang , Wenlong Jiang , Yang Tian , Lingxin Kong , Jinyang Zhao , Fei Wang
IPC: B22D43/00
CPC classification number: B22D43/007
Abstract: 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.
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6.发明公开公开(公告)号：US20230303402A1
公开(公告)日：2023-09-28
申请号：US18124792
申请日：2023-03-22
Applicant: Kunming University of Science and Technology
IPC: C01F7/34
CPC classification number: C01F7/34 , C01P2006/82 , C01P2004/64
Abstract: The present disclosure provides a preparation method of nano-aluminum oxide (nano-Al2O3) with a controllable hydroxyl content, belonging to the technical field of nano-alumina. H2O2 dissolved in water dissociates a large number of hydroxyl radicals. In the present disclosure, a resulting H2O2 solution is used as a solvent for precipitation; during the precipitation, a soluble aluminum salt and a pore-enlarging agent are reacted to generate a precipitate under alkaline conditions, and the hydroxyl radicals are distributed on a surface of the precipitate. During drying, the hydroxyl radicals are converted into bound water and distributed on a surface and in pores of an aluminum hydroxide precursor; during roasting, the bound water is destroyed to form hydroxyl. The hydroxyl content of the nano-Al2O3 can be regulated by controlling a concentration of the H2O2 solution, and the nano-Al2O3 has the hydroxyl content positively correlated with the concentration of the H2O2 solution.
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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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