Patents Assigned to KUNMING UNIVERSITY
  • 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: 11584692
    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<x<1, the crystal structure of the ceramic powder is orthorhombic, the lattice space group of the ceramic powder is C2221, the particle size of the ceramic powder ranges from 10 to 70 ?m, and particles of the ceramic powder are spherical. During preparation, the raw materials are ball-milled before a high temperature solid phase reaction, then mixed with a solvent and an organic binder to obtain a slurry C, then centrifuged and atomized to obtain dry pellets, and finally sintered to obtain a zirconia/titanium oxide/cerium oxide doped rare earth tantalum/niobate RETa/NbO4 ceramic powder, which satisfies the requirements of APS technology for ceramic powders.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: February 21, 2023
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Jing Feng, Peng Wu, Zhenhua Ge, Peng Song, Lin Chen, Jun Wang
  • Patent number: 11571676
    Abstract: The present disclosure provides an opening-closing type microwave catalytic reaction apparatus, including a microwave system, a microwave cavity, a protective cover, a cooling system, and a vertical furnace tube, where two ends of the furnace tube are respectively stretched out of the microwave cavity, the microwave system includes a plurality of microwave transmitting units, and the microwave transmitting unit includes a microwave transmitter; the furnace tube is provided with a gas inlet on a top and a gas outlet on a bottom; a compression hinge and a cavity cover capable of being opened or closed are arranged on the microwave cavity, a convex edge plate is disposed at an edge of the cavity cover, the compression hinge can compress the cavity cover such that the convex edge plate is tightly attached to a concave edge plate on the microwave cavity, and the protective cover can cover the entire cavity cover.
    Type: Grant
    Filed: October 1, 2021
    Date of Patent: February 7, 2023
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Lei Xu, Libo Zhang, Hang Li, Zhaohui Han, Jianhua Liu, Junwen Zhou, Hongying Xia, Xiangxian Liu, Yi Xia, Xinpei Li
  • Patent number: 11535572
    Abstract: The present invention discloses a method for ammonium-enhanced flue gas desulfurization (FGD) by using red mud slurry. The method specifically includes: crushing red mud, sieving the crushed red mud, slurrying the red mud, conducting aeration treatment, adding an ammonium salt and/or ammonia, and conducting natural sedimentation to obtain pretreated red mud slurry and pretreated red mud liquor; adding an ammonium salt and/or ammonia to the slurry, adding water and conducting uniform mixing, conducting pre-FGD, conducting deep desulfurization on treated flue gas by using the pretreated red mud liquor, and directly discharging desulfurized flue gas; and charging the pretreated red mud slurry and the pretreated red mud liquor obtained after the treatment to a replacement tank below, adding lime milk to the replacement tank, conducting stirring and natural sedimentation, conducting soilization on subnatant thick red mud slurry, and refluxing the supernatant to a red mud aeration tank.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: December 27, 2022
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Ping Ning, Senlin Tian, Jianhong Huang, Qin Zhang, Xuewei Hu, Bin Li
  • Patent number: 11530485
    Abstract: The present disclosure belongs to the field of preparation technology and provides an ultralimit alloy and a preparation method therefor. The ultralimit alloy comprises an alloy matrix. A bonding layer and a ceramic layer are successively deposited on a surface of the alloy matrix. The alloy matrix includes one of a magnesium alloy matrix, an aluminium alloy matrix, a titanium alloy matrix, an iron alloy matrix, a nickel alloy matrix, a copper alloy matrix, a zirconium alloy, and a tin alloy. For an ultralimit magnesium alloy, an ultralimit aluminium alloy, an ultralimit nickel alloy, an ultralimit titanium alloy, an ultralimit iron alloy and an ultralimit copper alloy, the bonding layer is a composite bonding layer, the ceramic layer is a composite ceramic layer, and the outside of the composite ceramic layer is further successively deposited with a reflecting layer, a catadioptric layer, an insulating layer and a carbon foam layer.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: December 20, 2022
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Jing Feng, Fushuo Wu, Qi Zheng, Kailong Yang, Chao Li, Peng Song, Xiaoyu Chong, Zhenhua Ge, Lin Chen, Jun Wang
  • Patent number: 11473171
    Abstract: The invention discloses a method about the integration of the metallurgical purification of metallic gadolinium and the preparation of gadolinium oxide nanoparticles (GONPs) by arc plasma. The method includes the metallurgical purification and the nanoparticle preparation. Firstly, the gadolinium ingot and a tungsten rod respectively act as an anode and a cathode. After the arc furnace is evacuated and then is filled with a working atmosphere, impurities in the gadolinium ingot are removed in the form of volatilization to obtain purified gadolinium by the first arc discharge. Whereafter, the purified gadolinium and the tungsten rod are used as the anode and cathode. After the arc furnace also is evacuated and then also is filled with a working atmosphere, GONPs are obtained from the inner wall of the arc furnace though the second arc discharge. The metallurgical purification of metallic gadolinium and the preparation of GONPs were integrated by arc plasma.
    Type: Grant
    Filed: May 31, 2022
    Date of Patent: October 18, 2022
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Feng Liang, Zhipeng Xie, Zhenggang Tang, Da Zhang, Bin Yang
  • Patent number: 11445580
    Abstract: The present invention provides a microwave-based high-throughput material processing device with a concentric rotary chassis. The device includes a microwave source generator, a microwave reaction chamber, and a temperature acquisition device. The microwave reaction chamber is provided with a rotary table, a thermal insulation barrel and a crucible die. The thermal insulation barrel is disposed on the rotary table, and the crucible die is disposed in the thermal insulation barrel. The crucible die is provided with a plurality of first grooves, and the first grooves are evenly distributed on a first circumference. A plurality of first fixing holes are disposed on a top of the thermal insulation barrel, and the first fixing holes are disposed corresponding to the first grooves. A first acquisition hole is disposed on the top of the microwave reaction chamber, and the first acquisition hole is located right above the first circumference.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: September 13, 2022
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Lei Xu, Jinhui Peng, Shenghui Guo, Libo Zhang, Zhaohui Han, Yi Xia, Shaohua Ju, Shanju Zheng, Shiwei Li, Zemin Wang, Zhang Xu
  • Patent number: 11440842
    Abstract: The invention belongs to the technical field of the resource treatment of industrial wastes, and particularly relates to a method for preparing a cementing material using smelting industrial waste slag after utilizing the simultaneous removal of SO2 and NOx in flue gas and an application of the cementing material obtained by the same. According to the invention, SO2 and NOx in the flue gas can be treated with the smelting industrial waste slag, meeting requirement of flue gas desulfurization and denitration; moreover, the smelting industrial waste slag can be purified and separated by means of waste gas resources to obtain a cementing material, realizing the resource utilization of the smelting industrial waste slag and waste gas.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: September 13, 2022
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Ping Ning, Jiacheng Bao, Xin Sun, Yansu Luo, Kai Li, Chi Wang
  • Patent number: 11426719
    Abstract: The present invention discloses a preparation method of a catalyst with white carbon black modified by Zr—Nd—O and use thereof, and belongs to the field of catalyst technologies. In the present invention, an organic solvent evaporation induced self-assembly method is used to load Zr—Nd—O onto white carbon black to obtain a mesoporous Zr—Nd—O/white carbon black catalyst. The mesoporous Zr—Nd—O/white carbon black catalyst in the present invention has high catalytic activity, contains uniformly distributed mesopores with a relatively large average aperture, and has a simple preparation process, etc.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: August 30, 2022
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Kai Li, Yingwu Wang, Ping Ning, Qiang Lin, Xin Sun, Chi Wang, Xin Song, Xiao Chen
  • Patent number: 11370663
    Abstract: The present disclosure relates to a method for production of nitrogen-doped single wall carbon nanohorns from anode graphite of wasted lithium-ion batteries. The method includes the following steps: a first step: forming recycled graphite powder into graphite blocks; and, a second contact step: when the first step is completed, using a DC arc plasma device to produce the graphite blocks into N-SWCNHs.
    Type: Grant
    Filed: December 13, 2021
    Date of Patent: June 28, 2022
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Feng Liang, Zhipeng Xie, Zhenggang Tang, Xiecheng Yang, Da Zhang, Minjie Hou, Yao Kang, Bin Yang, Yongnian Dai
  • Publication number: 20220154347
    Abstract: The present disclosure belongs to the field of preparation technology and provides an ultralimit alloy and a preparation method therefor. The ultralimit alloy comprises an alloy matrix. A bonding layer and a ceramic layer are successively deposited on a surface of the alloy matrix. The alloy matrix includes one of a magnesium alloy matrix, an aluminium alloy matrix, a titanium alloy matrix, an iron alloy matrix, a nickel alloy matrix, a copper alloy matrix, a zirconium alloy, and a tin alloy. For an ultralimit magnesium alloy, an ultralimit aluminium alloy, an ultralimit nickel alloy, an ultralimit titanium alloy, an ultralimit iron alloy and an ultralimit copper alloy, the bonding layer is a composite bonding layer, the ceramic layer is a composite ceramic layer, and the outside of the composite ceramic layer is further successively deposited with a reflecting layer, a catadioptric layer, an insulating layer and a carbon foam layer.
    Type: Application
    Filed: November 12, 2019
    Publication date: May 19, 2022
    Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: JING FENG, FUSHUO WU, QI ZHENG, KAILONG YANG, CHAO LI, PENG SONG, XIAOYU CHONG, ZHENHUA GE, LIN CHEN, JUN WANG
  • Publication number: 20220144705
    Abstract: The present disclosure discloses a rare earth tantalate ceramic resisting corrosion of a low melting point oxide. A general chemical formula of the ceramic is RETaO4. A method for preparing the ceramic includes: weighing RE2O3 powder and Ta2O5 powder and adding to a solvent to mix, and ball milling the mixed solution with a ball mill to obtain powder A; drying the powder A, and sieving the powder A for a first time to obtain powder B; placing the powder B in a mold for compaction, pre-sintering the powder B to form a block C, cooling the block C to room temperature, grounding the block C with a grinder, and sieving the block C for a second time to obtain powder D; and sintering the powder D to obtain the rare earth tantalate ceramic. The ceramic has high density and strong corrosion resistance to low melting point oxides.
    Type: Application
    Filed: November 14, 2019
    Publication date: May 12, 2022
    Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: JING FENG, LIN CHEN, XIAOYU CHONG, JUN WANG
  • Publication number: 20220112132
    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<x<1, the crystal structure of the ceramic powder is orthorhombic, the lattice space group of the ceramic powder is C2221, the particle size of the ceramic powder ranges from 10 to 70 ?m, and particles of the ceramic powder are spherical. During preparation, the raw materials are ball-milled before a high temperature solid phase reaction, then mixed with a solvent and an organic binder to obtain a slurry C, then centrifuged and atomized to obtain dry pellets, and finally sintered to obtain a zirconia/titanium oxide/cerium oxide doped rare earth tantalum/niobate RETa/NbO4 ceramic powder, which satisfies the requirements of APS technology for ceramic powders.
    Type: Application
    Filed: January 8, 2019
    Publication date: April 14, 2022
    Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: JING FENG, PENG WU, ZHENHUA GE, PENG SONG, LIN CHEN, JUN WANG
  • Publication number: 20220106234
    Abstract: The present disclosure provides a high-entropy rare earth-toughened tantalate ceramic. The ceramic is prepared by sintering Ta2O5 powder and x types of different RE2O3 powder, 4?x?9, and the molar ratio of the RE2O3 powders is 1. RE2O3 powder and Ta2O5 powder having the molar ratio of RE to Ta being 1:1 are weighed, a solvent is added for mixing, and ball milling is performed by a ball mill to obtain mixed powder M; the powder M is dried at a temperature of 650-850° C. for 1.5-2 h to obtain dried powder; the powder is sieved to obtain powder N, the powder N is placed in a mold for first pressing to obtain a rough blank, and the rough blank is then pressed for the second time to obtain a compact blank; the compact blank is sintered to obtain the high-entropy rare earth-toughened tantalate ceramic.
    Type: Application
    Filed: November 12, 2019
    Publication date: April 7, 2022
    Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: JING FENG, YUNXUAN ZHOU, XIAOYU CHONG, PENG WU, LIN CHEN, JUN WANG
  • Publication number: 20220097133
    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: Application
    Filed: September 27, 2021
    Publication date: March 31, 2022
    Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Hongxi LIU, Jingzhou LIU, Xuanhong HAO, Yingnan DI, Jianquan LIN
  • Patent number: 11261088
    Abstract: A method for production of ammonium phosphate from phosphate rock slurry. The method includes: introducing flue gas containing SO2 into a phosphate rock slurry, to yield an absorption solution; evaporating waste ammonia water containing 10-20 wt. % ammonia to yield ammonia gas; introducing the ammonia gas into the absorption solution at a temperature of 110-135° C. until a neutralization degree of the absorption solution reaches 1.5-1.6, thus yielding an ammonium phosphate solution and calcium sulfate; separating the calcium sulfate from the ammonium phosphate solution; and introducing the ammonium phosphate solution to a granulator for granulation to yield ammonium phosphate granules; drying and sieving the ammonium phosphate granules, thereby yielding ammonium phosphate.
    Type: Grant
    Filed: September 26, 2020
    Date of Patent: March 1, 2022
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Ping Ning, Rui Cao, Xueqian Wang, Senlin Tian, Yixing Ma, Langlang Wang, Yingjie Zhang, Peng Chen
  • Publication number: 20220049447
    Abstract: The traditional limit equilibrium slice method does not consider the distribution of the interslice normal force when analyzing the slope stability. That is, the present invention takes into consideration the distribution of the acting positions of the thrust line, and thus provides a slope stability limit equilibrium calculation method based on the distribution characteristics of the interslice normal force. For the deep concave slip surface, it is found that the improved limit equilibrium method and the traditional limit equilibrium method have a large error in the safety factor, which is as high as about 20%. The method of the present invention has the characteristics of simplicity and reliability, and will provide more accurate results for slope stability analysis.
    Type: Application
    Filed: March 20, 2020
    Publication date: February 17, 2022
    Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Shunchuan WU, Longqiang HAN, Xiaoqiang ZHANG, Haiyong CHENG, Yi REN
  • Patent number: 11247197
    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.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: February 15, 2022
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Kai Li, Yaxi Zhang, Ping Ning, Chi Wang, Fei Wang, Xin Sun, Yixing Ma, Xin Song, Qian Li
  • Patent number: 11248002
    Abstract: Disclosed are a sesquiterpene derivative and a use of the same in preparation of a medicament for treating hepatitis B diseases. The sesquiterpene derivative has the effects of down-regulating the hepatocyte nuclear factor 4? (HNF-4?) and significantly inhibiting the hepatitis B virus, and can be used for preventing and/or treating and/or assisting in the treatment of liver system diseases and symptoms caused by the hepatitis B virus, and can be used as a hepatic protective agent. In addition, the synthetic sesquiterpene derivative can also be used for preventing or treating viral infectious diseases and conditions resulting from the influenza virus, coxsackievirus, herpes simplex virus, etc. Also involved is the preparation of the synthetic sesquiterpene derivative, which acts as a raw material, in clinically acceptable pharmaceutical formulations, such as oral dosage forms such as tablets, capsules and drop pills or non-oral dosage forms such as inhalants and injections.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: February 15, 2022
    Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Min Xu, Haoyang Yuan, Haizhou Li, Yingjun Zhang, Chongren Yang