公开(公告)号：US20150041722A1

公开(公告)日：2015-02-12

申请号：US14384716

申请日：2012-03-12

Applicant: Kunming University of Science And Technology

Inventor： Ping Ning ,  Xueqian Wang ,  Xiangyu Wang ,  Senlin Tian ,  Xiaolong Tang ,  Huaping Gao ,  Honghong Yi

IPC: C01B3/58

CPC classification number: C01B3/58 ,  B01D53/75 ,  B01D53/78 ,  B01D53/864 ,  B01D2255/2022 ,  B01D2255/2027 ,  B01D2255/2063 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/2092 ,  B01D2255/50 ,  B01D2255/702 ,  B01D2258/025 ,  B01J21/04 ,  B01J21/18 ,  B01J23/04 ,  B01J23/10 ,  B01J23/72 ,  B01J23/835 ,  B01J29/072 ,  B01J37/0201 ,  B01J2229/186 ,  C01B2203/0415 ,  C01B2203/0435 ,  C01B2203/169

Abstract: Disclosed is a process for purifying tail gases from an ore-smelting electrical furnace by catalytic oxidization, which comprises: impregnating a catalyst carrier in an impregnating solution, then aging, calcinating, and finally drying, so as to prepare a catalyst of high efficiency; then washing the tail gases from an ore-smelting electrical furnace with an aqueous alkali-containing solution, pre-heating the alkali-washed tail gas; and adjusting the oxygen volume content in the tail gases, charging the tail gases at a certain speed, purifying the gases by a catalytic oxidization fixed bed containing the catalyst of high efficiency, cooling the purified gas, so as to obtain the feed gases for C1 chemistry.

Abstract translation: 公开了一种通过催化氧化来从冶炼电炉中净化尾气的方法，其包括：将催化剂载体浸渍在浸渍溶液中，然后老化，煅烧，最后干燥，以制备高效催化剂; 然后用含矿碱水溶液从冶炼电炉中清洗尾气，预热碱洗尾气; 调整尾气中的氧气体积，以一定的速度对尾气进行充气，用含有高效催化剂的催化氧化固定床净化气体，冷却净化气体，得到C1的进料气体 化学。

公开(公告)号：US12259129B2

公开(公告)日：2025-03-25

申请号：US17398531

申请日：2021-08-10

Applicant: Kunming University of Science and Technology

Inventor： Qiulin Zhang ,  Ping Ning ,  Lianyun Gao ,  Jianjun Chen ,  Tianrun Shao

IPC: F23G7/07 ,  F23C13/04 ,  F23K1/00 ,  F28D7/00

Abstract: The present disclosure provides a graded oxygen regulating, explosion preventing and recycling system and method for liquid nitrogen wash tail gas, and relates to the technical field of environmental protection and energy utilization. The system provided by the present disclosure includes a multi section catalytic combustor, the multi-section catalytic combustor being divided into a first-section catalytic combustion region, a second-section catalytic combustion region, and a third-section catalytic combustion region, the first-section catalytic combustion region and the second-section catalytic combustion region being internally filled with multiple layers of catalysts that are disposed at intervals, and an air flow guide pipe being arranged above each layer of catalyst; a first-section heat exchanger communicating with the first-section catalytic combustion region; a second-section heat exchanger communicating with the second-section catalytic combustion region; a pulverized coal drying section communicating with the second-section heat exchanger; and a boiler section communicating with the third-section catalytic combustion region.

公开(公告)号：US20250030078A1

公开(公告)日：2025-01-23

申请号：US18789788

申请日：2024-07-31

Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Peng DONG ,  Yannan ZHANG ,  Bao ZHANG ,  Yingjie ZHANG

IPC: H01M10/54 ,  C01G45/12 ,  C22B7/00

Abstract: A recycling method of waste lithium manganate cathode materials is provided. The recycling method includes: firstly, mixing the waste lithium manganate cathode materials with sulfuric acid for hydrothermal reaction, to obtain manganese dioxide and washing solution; then reacting the washing solution with ammonium bicarbonate, to obtain manganese carbonate and lithium sulfate; and mixing the manganese dioxide, lithium sulfate and lithium hydroxide monohydrate, then performing a sintering treatment, washing and a tempering treatment in sequence, to obtain recycled lithium manganate cathode materials. The recycling method can obtain manganese dioxide, spherical manganese carbonate and lithium sulfate by adjusting the reaction temperature and reaction time, realizing the effective recovery of manganese and lithium. The lithium manganate cathode materials can be re-prepared by using the recovered manganese and lithium and adding lithium hydroxide monohydrate, and the lithium manganate cathode materials have excellent electrochemical performance.

公开(公告)号：US20240380005A1

公开(公告)日：2024-11-14

申请号：US18597194

申请日：2024-03-06

Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： FENG LIANG ,  DONGRONG YANG ,  DA ZHANG ,  BAOQIANG XU ,  BIN YANG

IPC: H01M10/0565 ,  H01M10/054 ,  H01M50/403 ,  H01M50/414 ,  H01M50/451

Abstract: An asymmetric sodium-based solid-state composite electrolyte includes a first solid-state composite electrolyte layer and a second composite electrolyte layer obtained by laminated coating method. Both the two solid-state composite electrolyte layers include a polymer matrix, an inorganic filler, a sodium salt and a plasticizer, the difference is the electron conductive agent added with the mass ratio ranges from 1 wt. %˜10 wt. % into the second solid-state composite electrolyte layer. In a battery assembled with the asymmetric sodium-based solid-state composite electrolyte, the first solid-state composite electrolyte layer is contiguous with a positive electrode, and the second solid-state composite electrolyte layer is disposed between the first solid-state composite electrolyte layer and a negative electrode.

公开(公告)号：US20240375177A1

公开(公告)日：2024-11-14

申请号：US18681366

申请日：2023-06-20

Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Yang TIAN ,  Dong WANG ,  Haosong YU ,  Bin YANG ,  Baoqiang XU ,  Wenlong JIANG ,  Yifu LI ,  Fei WANG ,  Dong LIANG ,  Shuangping WANG ,  Qingsong LI

IPC: B22F9/12 ,  B01D3/10 ,  B22F1/05

Abstract: Provided are a vacuum distillation furnace, and a method for preparing high-purity copper particles. In view of the fact that high-purity copper prepared by the traditional method in the current industrial production has an unsatisfactory purity, a high impurity content, and a complicated composition, a vacuum distillation method is adopted. During the vacuum distillation method, most of valuable metals in a copper matrix are volatilized and enter into a gas phase, such that the metals are separated from the copper matrix, thereby allowing the purification of copper; and copper powder particles volatilized to a condensation plate have a smooth surface and a purity of 5 N grade or more.

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

IPC: C25C7/02 ,  C25C1/02 ,  C25C1/10 ,  C25C1/12 ,  C25C1/14 ,  C25C1/16 ,  C25C1/18 ,  C25C1/22

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.

公开(公告)号：US12097461B2

公开(公告)日：2024-09-24

申请号：US17546786

申请日：2021-12-09

Applicant: BGRIMM TECHNOLOGY GROUP ,  Kunming University of Science and Technology

Inventor： Guoqiang Chen ,  Senlin Tian ,  Ping Ning ,  Xiaosong Yang ,  Linan Shao ,  Zhilong Zhao

IPC: B01D53/00 ,  B01D5/00 ,  B01D46/02

CPC classification number: B01D53/002 ,  B01D5/0021 ,  B01D5/0072 ,  B01D46/02

Abstract: A method for treating arsenic-containing flue gas is disclosed. In the method, the arsenic-containing flue gas is subjected to a dry pre-dedusting treatment, and the dedusted flue gas is pre-cooled and then introduced into a vortex quenching system. The arsenic-containing flue gas is divided into high-temperature flue gas and low-temperature flue gas through the vortex quenching system. The outlet temperature of the low-temperature flue gas is dropped below the desublimation temperature of gaseous arsenic trioxide. The low-temperature flue gas is subjected to a gas-solid separation to obtain solid arsenic trioxide and treated flue gas.

公开(公告)号：US20240263314A1

公开(公告)日：2024-08-08

申请号：US18638651

申请日：2024-04-17

Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Jing FENG ,  Lin CHEN ,  Xiaoyu CHONG ,  Jianyu LI ,  Jianbo SONG ,  Luyang ZHANG ,  Jiankun WANG

IPC: C23C28/04 ,  C04B35/80 ,  C04B35/83 ,  C04B41/45 ,  C04B41/50 ,  C04B41/51 ,  C04B41/52 ,  C08J5/24 ,  C23C4/11 ,  C23C14/20 ,  C23C14/30 ,  C23C14/58 ,  C23C24/04

CPC classification number: C23C28/042 ,  C04B35/80 ,  C04B35/83 ,  C04B41/4533 ,  C04B41/5072 ,  C04B41/5133 ,  C04B41/524 ,  C08J5/241 ,  C08J5/242 ,  C08J5/243 ,  C08J5/244 ,  C08J5/246 ,  C23C4/11 ,  C23C14/20 ,  C23C14/30 ,  C23C14/5853 ,  C23C24/04 ,  C04B2235/3826 ,  C04B2235/422 ,  C04B2235/5244 ,  C04B2235/5248

Abstract: A UAV surface coating includes at least a bonding layer, an antioxidant layer, an oxygen-blocking propagation layer and a heat-insulation cooling layer. The coating is fabricated on a surface of a UAV machine body or covers on the surface of the UAV machine body through a composite material matrix. The UAV machine body is made of lightweight material, and the composite material matrix includes a resin-based composite matrix and a ceramic-based composite matrix. Wherein, a thickness of the bonding layer is from 20 μm to 200 μm, a thickness of the oxygen-blocking propagation layer is from 20 μm to 200 μm, and a thickness of the heat-insulation cooling layer is from 80 μm to 1000 μm.

公开(公告)号：US12051776B2

公开(公告)日：2024-07-30

申请号：US18537953

申请日：2023-12-13

Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY ,  JIANGSU FENGCHI CARBON BASED NEW MATERIAL RESEARCH INSTITUTE CO., LTD

Inventor： Feng Liang ,  Minjie Hou ,  Da Zhang ,  Tao Zhang ,  Sunzu Xiang ,  Wenlong Jiang ,  Baoqiang Xu ,  Bin Yang

IPC: H01M10/0562

CPC classification number: H01M10/0562 ,  H01M2300/0068

Abstract: A method for preparing a sodium super ionic conductor solid electrolyte by low-dimensional crystallization belongs to a field of energy materials. The method is based on the theory of negative ion coordination polyhedron growth unit, and uses low-temperature plasma as a protective gas of a spray drying equipment. While evaporating the solvent in a sodium super ionic conductor solid electrolyte precursor slurry, plasma active groups modify the particle surface of the sodium super ionic conductor solid electrolyte precursor particles in-situ. A free space dimension of crystal growth in the crystallization process is reduced, and directional growth of crystals in the solid phase sintering process is induced. Secondly, the dispersion stability of the sodium super ionic conductor solid electrolyte precursor particles is improved. Compared with the traditional high-temperature solid-state sintering process, the method has the advantages of fast crystallization speed, high crystal purity and integrity, good compactness, and uniform particles.

公开(公告)号：US20240132996A1

公开(公告)日：2024-04-25

申请号：US18487992

申请日：2023-10-15

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 aquesous 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.