公开(公告)号：US20240287644A1

公开(公告)日：2024-08-29

申请号：US18043943

申请日：2022-10-12

Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY

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

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

CPC classification number: C22B7/007 ,  C22B1/06 ,  C22B7/001 ,  C22B13/025 ,  C22B15/0017 ,  C22B15/0056 ,  C22B15/0071 ,  C22B30/04 ,  C22B30/06 ,  C22B61/00 ,  C25C1/20

Abstract: 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：US20240240282A1

公开(公告)日：2024-07-18

申请号：US18415220

申请日：2024-01-17

Applicant: Kunming University of Science and Technology ,  Jiangxi Blue Environmental Engrg Tech Co., Ltd. ,  Yunnan Blue Enviromental Engineering Tech Co., Ltd.

Inventor： Xin SUN ,  Kai LI ,  Jie YANG ,  Yaqiong LUO ,  Xiaomei JIANG ,  Wanting ZHANG ,  Minghui HE ,  Xin TANG ,  Wenping QIAN

IPC: C22B7/04 ,  C22B5/10

CPC classification number: C22B7/04 ,  C22B5/10

Abstract: Provides is a method for denitration of carbothermally reduced iron-containing nonferrous metal smelting slag mixed with advanced oxidizer. In the method, the iron-containing smelting slag is subjected to carbothermal reduction, such that metals or metal oxides in the smelting slag are reduced and transformed into active catalysts which could activate hydrogen peroxide to generate free radicals. Hydrogen peroxide is catalytically decomposed, generating ·OH free radicals, and ·OH free radicals generated further oxidize NOx. The reactions are performed at ambient temperature

公开(公告)号：US20240139809A1

公开(公告)日：2024-05-02

申请号：US18409798

申请日：2024-01-11

Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Yang TIAN ,  Dong LIANG ,  Bin YANG ,  Baoqiang XU ,  Dachun LIU ,  Fei WANG ,  Yifu LI ,  Wenlong JIANG ,  Yong DENG ,  Jian WU ,  Lipeng WANG

IPC: B22F9/08 ,  B22F9/06

CPC classification number: B22F9/08 ,  B22F2009/065 ,  B22F2009/0812 ,  B22F2203/11 ,  B22F2203/13 ,  B22F2301/058

Abstract: 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：US11970755B1

公开(公告)日：2024-04-30

申请号：US18487992

申请日：2023-10-16

Applicant: Kunming University of Science and Technology

Inventor： Yunlong Chen ,  Jin Wu ,  Futing Zi ,  Xianzhi Hu ,  Fengru Meng ,  Yongmao Zeng ,  Zhongying Wang ,  Yihuai Yang

IPC: C22B11/00 ,  B01D15/08 ,  B01J20/02 ,  B01J20/30 ,  C22B3/20

CPC classification number: C22B11/04 ,  B01D15/08 ,  B01J20/0266 ,  B01J20/3085 ,  C22B3/20

Abstract: The present disclosure discloses an application of cuprous sulfide in a recovery of Au (III) from aqueous solutions, which relates to the fields of hydrometallurgy and precious metal recovery. The method of the present disclosure uses cuprous sulfide nanoparticles to recover Au (III) from aqueous solution, and undergoes gold adsorption under mechanical stirring. The method described in the present disclosure can efficiently recover Au (III) from aqueous solutions, has good recovery effects on Au (III) from acidic waste liquid, and has the advantages of energy conservation, environmental protection, and low cost.

公开(公告)号：US20240094343A1

公开(公告)日：2024-03-21

申请号：US18450434

申请日：2023-08-16

Applicant: Kunming University of Science and Technology

Inventor： XuanZhi Zhao ,  Wen Zhang ,  ZengLi Liu ,  Kang Liu ,  HaiYan Quan ,  Yi Peng ,  JingMin Tang ,  YaoLian Song ,  Zheng Chen

IPC: G01S7/41 ,  G01S13/58 ,  G01S13/66

CPC classification number: G01S7/415 ,  G01S13/58 ,  G01S13/66

Abstract: A method, device, system, and storage medium for tracking a moving target are provided. The method uses three-dimensional radar observation data to construct a state vector and a motion model of the moving target, thereby to construct a state equation and an observation equation for achieving filtering and tracking within a linear Gaussian framework. The disclosure is also suitable for a moving target in a two-dimensional scene with a distance and an azimuth, and the disclosure use a two-dimensional observation vector to construct a dynamic system to achieving tracking of the moving target. The disclosure can be used in radar systems containing Doppler measurements, and tracking of moving targets can be implemented by performing dimension-expansion processing on observation equations.

公开(公告)号：US11827518B1

公开(公告)日：2023-11-28

申请号：US18315162

申请日：2023-05-10

Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Feng Liang ,  Zhipeng Xie ,  Da Zhang ,  Long Ma ,  Yichang Liu ,  Junxi Li

IPC: C01B32/18

CPC classification number: C01B32/18 ,  C01P2002/02 ,  C01P2004/32 ,  C01P2004/64 ,  C01P2004/88 ,  C01P2006/80

Abstract: The present disclosure relates to a method for production of CNHs composite material. The method includes the following steps: a first step: the silicon particles and graphite powder are mixed for a preset time by planetary ball mill device, and the weight ratio of silicon element to carbon element is 10-40%, then the Si/C precursor is obtained; a second contact step: the Si/C precursor is pressed into a precursor block, then using precursor block to the CNHs composite material by a DC arc plasma device.

公开(公告)号：US11787721B2

公开(公告)日：2023-10-17

申请号：US17349029

申请日：2021-06-16

Applicant: Kunming University of Science and Technology

Inventor： Guangjin Wang ,  Chengliang Zhang ,  Xiangyun Kong ,  Mingyu He

IPC: C02F11/14 ,  C02F11/122 ,  C02F1/00 ,  B01D21/01 ,  B01D21/30 ,  B01D21/08 ,  G01N33/24 ,  B01D21/32 ,  C02F103/10

CPC classification number: C02F11/14 ,  B01D21/01 ,  B01D21/08 ,  B01D21/302 ,  B01D21/32 ,  C02F1/008 ,  C02F11/122 ,  G01N33/24 ,  C02F2103/10 ,  C02F2209/005 ,  C02F2209/40

Abstract: The invention relates to a tailings settling-dewatering-solidifying device and an experimental method thereof, which falls into the technical field of mine engineering and mine geotechnical engineering, comprising a tailings settling device including a water tank, charging barrels I and II, and a reaction tank made of a transparent material, a dewatering device including an intelligent type controller, a circular base, a gas cylinder, a permeable stone, a piston, a metal rod and a water return barrel, a solidifying device including a charging barrel III and a tailings barrel, a stirring system including a stirrer, a rotary shaft and an electric motor, a dynamic real-time monitoring system including a high-definition electronic camera and a computer, and a three-layer framework. Through integration of tailings settling-dewatering-solidifying, the device can effectively improve tailings treatment efficiency, facilitate data collection and analysis, adjust medicament concentration in real time, meet enterprises' requirements, and reduce enterprise cost.

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

Inventor： Fei Wang ,  Kai Li ,  Ping Ning ,  Zhao Li ,  Xin Sun ,  Yixing Ma ,  Chi Wang

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.

公开(公告)号：US11731873B2

公开(公告)日：2023-08-22

申请号：US16821623

申请日：2020-03-17

Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Ping Ning ,  Xin Song ,  Xin Sun ,  Yixing Ma ,  Kai Li ,  Senlin Tian

IPC: B01D53/14 ,  C01B17/02 ,  B01D53/18

CPC classification number: C01B17/021 ,  B01D53/1425 ,  B01D53/1493 ,  B01D53/185 ,  B01D2252/10

Abstract: A gas-solid separating method and a gas-solid separating system for simple substance sulphur in sulphur-containing exhaust are provided. The gas-solid separating method for simple substance sulphur in sulphur-containing exhaust comprises the following steps: first, cooling sulphur-containing exhaust at an extremely high speed; then, separating dust; finally, recycling a heavy liquid phase solvent and simple substance sulphur. The system comprises a quick cooling system, a low-temperature washing and purifying system, a light liquid phase and heavy liquid phase separating system, a washing liquid recycling system and a simple substance sulphur recycling system.

公开(公告)号：US11584692B2

公开(公告)日：2023-02-21

申请号：US17418207

申请日：2019-01-08

Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Jing Feng ,  Peng Wu ,  Zhenhua Ge ,  Peng Song ,  Lin Chen ,  Jun Wang

IPC: C04B35/495 ,  C04B35/626 ,  C04B35/64

Abstract: The present disclosure relates to the technical field of ceramic powder preparation, and discloses a zirconia/titania/cerium oxide doped rare earth tantalum/niobate RETa/NbO4 ceramic powder and a preparation method thereof. A general chemical formula of the ceramic powder is RE1-x(Ta/Nb)1-x(Zr/Ce/Ti)2xO4, 0