Patents Assigned to Kunming University of Science and Technology
  • Patent number: 11981569
    Abstract: A method includes the following steps: a first step: the material containing heteroatom and graphite powder are mixed for a preset time by grinding, and the molar ratio of heteroatom to carbon atom is 1%-10%, then the heteroatom precursors are obtained; a second contact step: the heteroatom precursor is filled into a graphite rod with holes and compacted, then the graphite rod is dried for a preset time to obtain a plasma anode and using a DC arc plasma device to prepare the graphite anode into heteroatom-doped CNHs; a third contact step: the heteroatom-doped CNHs are dispersed in a reducing solution, a platinum salt is added to stir evenly, the reduction reaction is carried out by heating and stirring, and after centrifugation, washing and drying, a catalyst with platinum loading is obtained.
    Type: Grant
    Filed: April 20, 2023
    Date of Patent: May 14, 2024
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Feng Liang, Zhipeng Xie, Da Zhang
  • Publication number: 20240139809
    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.
    Type: Application
    Filed: January 11, 2024
    Publication date: May 2, 2024
    Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Yang TIAN, Dong LIANG, Bin YANG, Baoqiang XU, Dachun LIU, Fei WANG, Yifu LI, Wenlong JIANG, Yong DENG, Jian WU, Lipeng WANG
  • Patent number: 11970755
    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.
    Type: Grant
    Filed: October 16, 2023
    Date of Patent: April 30, 2024
    Assignee: Kunming University of Science and Technology
    Inventors: Yunlong Chen, Jin Wu, Futing Zi, Xianzhi Hu, Fengru Meng, Yongmao Zeng, Zhongying Wang, Yihuai Yang
  • Patent number: 11958789
    Abstract: A method for determining a consistency coefficient of a power-law cement grout includes: determining a water-cement ratio of the power-law cement grout; according to engineering practice requirements, determining a time required to determine the consistency coefficient of the power-law cement grout; and obtaining the consistency coefficient of the power-law cement grout. The method is accurate and reliable, requires less calculation, etc.; and has very high practical value and popularization value in environmental protection and ecological restoration.
    Type: Grant
    Filed: December 12, 2023
    Date of Patent: April 16, 2024
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Zhi-quan Yang, Jun-fan Xiong, Ying-yan Zhu, Yi Yang, Yong-shun Han, Muhammad Asif Khan, Jian-bin Xie, Tian-bing Xiang, Bi-hua Zhang, Han-hua Xu, Jie Zhang, Shen-zhang Liu, Qi-jun Jia, Cheng-yin Ye, Gang Li
  • Patent number: 11959869
    Abstract: A method for monitoring mechanochemical activation of metal powders in dynamic electrochemical environment and a device thereof are provided. The method includes constructing a dynamic testing environment in an electrochemical cell, using a three-electrode system, and collecting data from an external electrochemical workstation. The three-electrode system is composed of the working metal plate, the reference electrode, and the platinum electrode. The dynamic testing environment includes small load impacts and changes in pH and composition of the solution. Under the premise of simulating the production environment of the mechanical plating and the water-based metal coating material, the monitoring method described in the present disclosure cooperates with an electrochemical workstation for OCPT testing to achieve the monitoring of mechanochemical activation of metal powders in dynamic electrochemical environment.
    Type: Grant
    Filed: September 8, 2023
    Date of Patent: April 16, 2024
    Assignee: Kunming University of Science and Technology
    Inventors: Shengmin Wang, Chengyu Wang, Xiaojun Zhao, Peng Liu
  • Patent number: 11946845
    Abstract: A method for determining a three-dimensional tortuosity of a loose and broken rock-soil mass, includes the following steps: a particle grading curve of the loose and broken rock-soil mass is obtained by utilizing a particle size analysis, and followed by calculating an equivalent particle size and an average particle size; a porosity of the loose and broken rock-soil mass is obtained by utilizing a moisture content test, a density test, and a specific gravity test; the three-dimensional tortuosity of the loose and broken rock-soil mass is obtained by utilizing the equivalent particle size, the average particle size and the porosity of the loose and broken rock-soil mass. The method has the advantages of simple logic, accuracy and reliability, simple and fast parameter determination, and has high practical value and promotion value in the field of environmental protection and ecological restoration technology.
    Type: Grant
    Filed: November 1, 2023
    Date of Patent: April 2, 2024
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Zhi-quan Yang, Jia-jun Zhang, Jun-fan Xiong, Ying-yan Zhu, Yi Yang, Muhammad Asif Khan, Tian-bing Xiang, Bi-hua Zhang, Han-hua Xu, Jie Zhang, Shen-zhang Liu
  • Publication number: 20230416145
    Abstract: The present disclosure relates to a visible light-catalyzed translucent concrete, and a preparation method and use thereof. The preparation method includes: extracting an iron oxide from a copper slag, mixing the iron oxide with TiO2 to obtain a photocatalyst, and then mixing the photocatalyst with an additive to obtain a photocatalytic slurry; preparing a concrete slurry using the copper slag after iron extraction as an aggregate; and pouring the photocatalytic slurry, the concrete slurry, and the photocatalytic slurry in sequence into a mold pre-laid with an optical fiber, to obtain the visible light-catalyzed translucent concrete. In the visible light-catalyzed translucent concrete, iron in the copper slag is used as a part of raw materials of the photocatalyst, and the copper slag after iron extraction is used as an aggregate to replace natural sand and gravel. This solves environmental pollutions caused by the copper slag and realizes resource utilization.
    Type: Application
    Filed: June 21, 2023
    Publication date: December 28, 2023
    Applicants: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY, YUNNAN BLUE ENVIRONMENTAL ENGINEERING TECH CO., LTD., JIANGXI BLUE ENVIRONMENTAL ENGINEERING TECH CO., LTD.
    Inventors: Kai LI, Xin SUN, Chunxue WANG, Jie YANG, Fei WANG, Chi WANG, Yixing MA, Yuan LI, Lei SHI, Siyang LI
  • Patent number: 11850659
    Abstract: The present disclosure discloses a high-entropy alloy powder for laser cladding and a use method thereof. The alloy powder is CoCrFeMnNiCx, and x has a value of 0.1-0.15. The specific method includes: subjecting a 45 steel substrate to surface pretreatment, mixing the weighed CoCrFeMnNi high-entropy alloy powder with different content of a nano-C powder uniformly and pre-placed on the pre-treated substrate surface to form a prefabricated layer, then placing the prefabricated layer at 80-90° C. for constant temperature treatment for 8-12 h, and under a protective atmosphere, subjecting the cladding powder to laser cladding on the surface of the 45 steel. The method of the present disclosure prepares a CoCrFeMnNiCx high-entropy alloy coating with performance superior to the CoCrFeMnNi high-entropy alloy coating.
    Type: Grant
    Filed: September 27, 2021
    Date of Patent: December 26, 2023
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Hongxi Liu, Jingzhou Liu, Xuanhong Hao, Yingnan Di, Jianquan Lin
  • Patent number: 11827518
    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.
    Type: Grant
    Filed: May 10, 2023
    Date of Patent: November 28, 2023
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Feng Liang, Zhipeng Xie, Da Zhang, Long Ma, Yichang Liu, Junxi Li
  • Patent number: 11817552
    Abstract: The present disclosure discloses a method for plasma modification of sodium super ionic conductor type solid electrolyte, which comprises: dielectric barrier discharge plasma modification of sodium super ionic conductor solid electrolyte particles to obtain activated sodium super ionic conductor solid electrolyte particles; weigh the polymer and the activated sodium super ionic conductor solid electrolyte particles in a predetermined proportion, dissolve the polymer and the activated sodium super ionic conductor solid electrolyte particles in an organic solvent to obtain a mixed solution, then pour the mixed solution into a preset mold, and then dry it to remove the organic solvent and form a composite solid electrolyte film. The composite solid electrolyte film is taken out of the mold and rolled to obtain the composite solid electrolyte film after rolling treatment.
    Type: Grant
    Filed: November 24, 2022
    Date of Patent: November 14, 2023
    Assignees: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY, JIANGSU FENGCHI CARBON-BASED NEW MATERIALS RESEARCH INSTITUTE CO., LTD.
    Inventors: Feng Liang, Minjie Hou, Da Zhang, Tao Zhang, Sunzu Xiang, Wenlong Jiang, Baoqiang Xu, Bin Yang
  • Patent number: 11801552
    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.
    Type: Grant
    Filed: March 24, 2022
    Date of Patent: October 31, 2023
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Baoqiang Xu, Tengteng Shi, Bin Yang, Wenlong Jiang, Yang Tian, Lingxin Kong, Jinyang Zhao, Fei Wang
  • Patent number: 11787721
    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.
    Type: Grant
    Filed: June 16, 2021
    Date of Patent: October 17, 2023
    Assignee: Kunming University of Science and Technology
    Inventors: Guangjin Wang, Chengliang Zhang, Xiangyun Kong, Mingyu He
  • Publication number: 20230303402
    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.
    Type: Application
    Filed: March 22, 2023
    Publication date: September 28, 2023
    Applicant: Kunming University of Science and Technology
    Inventors: Fei Wang, Kai Li, Ping Ning, Zhao Li, Xin Sun, Yixing Ma, Chi Wang
  • Patent number: 11733146
    Abstract: A method for determining a column-hemispherical permeation radius with time-varying property of power-law cement grout and tortuosity of rock and soil mass is provided, including: acquiring a porosity ? of rock and soil mass and a corresponding permeation coefficient K by geotechnical tests, measuring a groundwater pressure P0 at a grouting point and determining tortuosity ? of rock and soil mass; acquiring an initial consistency coefficient c0, a rheological index n and a time-varying property coefficient k of power-law cement grout with a designed water to cement ratio by rheological tests, and determining the viscosity of water ?w; acquiring grouting parameters, including a grouting pressure P1, grouting time t, a number m of grouting holes of a side surface of a grouting pipe and a grouting hole radius r; and solving a column-hemispherical permeation grouting diffusion radius R considering coupling effect both the tortuosity of rock and soil mass and the time-varying property of power-law cement grout.
    Type: Grant
    Filed: November 30, 2022
    Date of Patent: August 22, 2023
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Zhiquan Yang, Mao Chen, Yingyan Zhu, Yi Yang, Wentao Chen, Yuqing Liu, Muhammad Asif Khan, Bihua Zhang, Hanhua Xu, Tianbing Xiang, Jie Zhang
  • Patent number: 11731873
    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.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: August 22, 2023
    Assignee: Kunming University of Science and Technology
    Inventors: Ping Ning, Xin Song, Xin Sun, Yixing Ma, Kai Li, Senlin Tian
  • Patent number: 11681841
    Abstract: A method and device for calculating an optimal leveling stiffness of pile top displacement regulators in a composite foundation are disclosed. The method includes: determining basic parameters for calculating the optimal leveling stiffness of the pile top displacement regulators in the composite foundation; building an optimal mathematical model for calculating the optimal leveling stiffness of the pile top displacement regulators in the composite foundation, and solving the optimal mathematical model for calculating the optimal leveling stiffness of the pile top displacement regulators in the composite foundation to obtain the optimal leveling stiffness. The method and device maximize the bearing capacity of the composite foundation by taking an optimal value of the leveling stiffness of the pile top displacement regulators. The method and device realize accurate quantitative analysis for composite foundation design by adjusting the value of the leveling stiffness of the pile top displacement regulators.
    Type: Grant
    Filed: September 13, 2022
    Date of Patent: June 20, 2023
    Assignees: KUNMING PROSPECTING DESIGN INSTITUTE OF CHINA NONFERROUS METALS INDUSTRY CO., LTD, KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Wenlian Liu, Sugang Sui, Ze Li, Hanhua Xu, Bangtuan Wang, Pengfei Xu, Zejiang Li, Yahong Fan
  • Patent number: 11667530
    Abstract: A method includes the following steps: a first step: the material containing heteroatom and graphite powder are mixed for a preset time by grinding, and the molar ratio of heteroatom to carbon atom is 1%-10%, then the heteroatom precursors are obtained; a second contact step: the heteroatom precursor is filled into a graphite rod with holes and compacted, then the graphite rod is dried for a preset time to obtain a plasma anode and using a DC arc plasma device to prepare the graphite anode into heteroatom-doped CNHs; a third contact step: the heteroatom-doped CNHs are dispersed in a reducing solution, a platinum salt is added to stir evenly, the reduction reaction is carried out by heating and stirring, and after centrifugation, washing and drying, a catalyst with platinum loading is obtained.
    Type: Grant
    Filed: October 12, 2022
    Date of Patent: June 6, 2023
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Feng Liang, Zhipeng Xie, Da Zhang
  • Patent number: 11616226
    Abstract: The disclosure discloses a method for preparing a high-voltage cathode material by body modification and regeneration of a waste lithium cobaltate material.
    Type: Grant
    Filed: April 16, 2021
    Date of Patent: March 28, 2023
    Assignee: Kunming University of Science and Technology
    Inventors: Yingjie Zhang, Peng Dong, Qi Meng, Siyuan Zhou, Qingxiang Li, Shaoqiang Zhou, Jianguo Duan, Xue Li, Yin Liu, Duanyun Chen
  • Publication number: 20230082842
    Abstract: The present disclosure describes a method for repairing a cathode material of a spent lithium-ion battery, which includes: mixing the cathode material of the spent lithium-ion battery, a lithium sheet, a solid oxidant and absolute ethanol under a protective atmosphere for repairing to obtain a repaired cathode material of the lithium-ion battery, where a temperature for the repairing is 20-70° C.; a ratio of the amount of substance of lithium atoms to the total amount of substance of other metal atoms in the cathode material of the spent lithium-ion battery is (0.5-1):1, excluding 1:1.
    Type: Application
    Filed: May 20, 2022
    Publication date: March 16, 2023
    Applicant: Kunming University of Science and Technology
    Inventors: Yingjie Zhang, Peng Dong, Qi Meng, Yannan Zhang, Zitong Fei, Chenchen Li, Lei Liu, Jin Yan
  • Patent number: 11602725
    Abstract: A device for rapidly preparing ?-Si3N4 by gas-solid reaction and a method thereof, and relates to the technical field of recycling and reuse of waste fine silicon powder. The bottom of a stock bin communicates with a first opening and closing passage, a first connection passage, and the top of a first transitional bin; the bottom of the first transitional bin communicates with the first opening and closing passage, a second connection passage, and the top of a reaction bin; the bottom of the reaction bin communicates with a second opening and closing passage, the first connection passage, and the top of a second transitional bin; the bottom of the second transitional bin communicates with the top of a conveying passage through the first opening and closing passage; a material outlet of the conveying bin communicates with the collection bin.
    Type: Grant
    Filed: December 1, 2021
    Date of Patent: March 14, 2023
    Assignee: Kunming University of Science and Technology
    Inventors: Lei Xu, Libo Zhang, Hang Li, Zhaohui Han, Jianhua Liu, Hongying Xia, Zhimeng Tang, Lirong Guo