公开(公告)号：US20230286805A1

公开(公告)日：2023-09-14

申请号：US18304316

申请日：2023-04-20

Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： FENG LIANG ,  ZHIPENG XIE ,  DA ZHANG

IPC: C01B32/18 ,  B01J37/08 ,  B01J21/18 ,  B01J35/00 ,  B01J23/42

CPC classification number: C01B32/18 ,  B01J21/18 ,  B01J23/42 ,  B01J35/0013 ,  B01J37/08

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.

公开(公告)号：US11733146B1

公开(公告)日：2023-08-22

申请号：US18072319

申请日：2022-11-30

Applicant: Kunming University of Science and Technology

Inventor： Zhiquan Yang ,  Mao Chen ,  Yingyan Zhu ,  Yi Yang ,  Wentao Chen ,  Yuqing Liu ,  Muhammad Asif Khan ,  Bihua Zhang ,  Hanhua Xu ,  Tianbing Xiang ,  Jie Zhang

IPC: G01N15/08 ,  G01N33/38 ,  G01N33/24

CPC classification number: G01N15/0893 ,  G01N33/246 ,  G01N33/383

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 ϕ 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 ξ 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 μw; 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.

公开(公告)号：US11667530B1

公开(公告)日：2023-06-06

申请号：US17964887

申请日：2022-10-12

Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Feng Liang ,  Zhipeng Xie ,  Da Zhang

IPC: C01B32/18 ,  B01J21/18 ,  B01J37/08 ,  B01J35/00 ,  B01J23/42

CPC classification number: C01B32/18 ,  B01J21/18 ,  B01J23/42 ,  B01J35/0013 ,  B01J37/08

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.

公开(公告)号：US11602725B2

公开(公告)日：2023-03-14

申请号：US17540229

申请日：2021-12-01

Applicant: Kunming University of Science and Technology

Inventor： Lei Xu ,  Libo Zhang ,  Hang Li ,  Zhaohui Han ,  Jianhua Liu ,  Hongying Xia ,  Zhimeng Tang ,  Lirong Guo

IPC: B01J4/00 ,  B01J8/00 ,  B01J19/00 ,  B01J19/18 ,  C01B21/068

Abstract: A device for rapidly preparing β-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.

公开(公告)号：US20230076548A1

公开(公告)日：2023-03-09

申请号：US17739184

申请日：2022-05-09

Applicant: Kunming University of Science and Technology

Inventor： Ying JIANG ,  Chao SONG

IPC: G06F8/75 ,  G06F8/30 ,  G06F8/10

Abstract: The present disclosure discloses a method and a device for processing programming data. The method includes: acquiring programming data of a target object; identifying a programming behavior of the target object according to the programming data; and determining programming contribution rates of the target object, an automatic code generation tool and a programming platform according to the programming behavior.

公开(公告)号：US11571676B2

公开(公告)日：2023-02-07

申请号：US17492140

申请日：2021-10-01

Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Lei Xu ,  Libo Zhang ,  Hang Li ,  Zhaohui Han ,  Jianhua Liu ,  Junwen Zhou ,  Hongying Xia ,  Xiangxian Liu ,  Yi Xia ,  Xinpei Li

IPC: B01J19/00 ,  B01J19/08 ,  B01J19/12

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.

公开(公告)号：US20220314190A1

公开(公告)日：2022-10-06

申请号：US17492140

申请日：2021-10-01

Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Lei XU ,  Libo ZHANG ,  Hang LI ,  Zhaohui HAN ,  Jianhua LIU ,  Junwen ZHOU ,  Hongying XIA ,  Xiangxian LIU ,  Yi XIA ,  Xinpei LI

IPC: B01J19/12 ,  B01J19/00

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.

公开(公告)号：US20220097133A1

公开(公告)日：2022-03-31

申请号：US17486062

申请日：2021-09-27

Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Hongxi LIU ,  Jingzhou LIU ,  Xuanhong HAO ,  Yingnan DI ,  Jianquan LIN

IPC: B22F1/054 ,  C23C24/10 ,  B22F1/107

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.

公开(公告)号：US10982299B2

公开(公告)日：2021-04-20

申请号：US16357369

申请日：2019-03-19

Applicant: Kunming University of Science and Technology ,  Kunming Dingbang Technology Co., Ltd.

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

IPC: C22B3/22 ,  C22B13/06

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.

公开(公告)号：US10814273B2

公开(公告)日：2020-10-27

申请号：US16601661

申请日：2019-10-15

Applicant: Kunming University of Science and Technology

Inventor： Yingjie Li ,  Senlin Tian ,  Jianhong Huang ,  Xuewei Hu ,  Ping Ning

IPC: B01D53/86

Abstract: The invention discloses a method for simultaneously removing SO2 and NOx in flue gas: uniformly mixing a water-soluble ruthenium salt with ammonia water to obtain an aqueous solution of a ruthenium-amine complex; subjecting the flue gas and the aqueous solution of the ruthenium-amine complex to a countercurrent contact reaction under the temperature of 5-60° C., pH of 7.5-12 to obtain a solution A and purified gas; discharging the solution A of the step (2) into a crystallization tank to crystallize and separate an ammonium salt to obtain a solution B, returning the solution B to replace the aqueous solution of the ruthenium-amine complex. The invention utilizes the ruthenium-amine complex having a strong capability of complexing with NO as well as residual oxygen in the flue gas to carry out liquid phase catalytic oxidation to convert the NOx into ammonium nitrate, and the removal efficiency of the NOx and the SO2 is high.