Kunming University of Science and Technology

Kunming Diboo Technology Co., Ltd.

Kunming Dingbang Technology Co., Ltd.

Jiangsu Fengchi Carbon-based New Materials Research Institute Co., Ltd.

Jiangsu Fengchi Carbon Based New Material Research Institute Co., Ltd

Bin Yang

Feng Liang

Da Zhang

Wenlong Jiang

Baoqiang Xu

Minjie Hou

Zhipeng Xie

Fei Wang

Yang Tian

Tao Zhang

Wei Chen

Bin Su

Lingxin Kong

Xiumin Chen

Yong Deng

Weiping Dai

Zhenggang Tang

Yifu Li

Hao Chen

Junxi Li

Dan Shao

Jianren Pan

Wentong Tang

Wenlin Li

Xiecheng Yang

Menglin Li

Tengteng Shi

Sunzu Xiang

Qingchun Yu

Yongnian Dai

Heng Xiong

Zefei Fan

Hongwei Yang

Wenhui Ma

Pan Liu

Tao Qu

Haosong Yu

Jinyang Zhao

Dachun Liu

Jia Yang

Dong Wang

Guozheng Zha

Lipeng Wang

Long Han

Dong Liang

Kun Yang

Hui Xie

Yao Kang

Shouyun Yang

Chunyang Zheng

The present disclosure relates to a device and method for recovering arsenic and gallium. A closed furnace body is in communication with a vacuuming pipe, and the vacuuming pipe is connected to a vacuuming mechanism. The closed furnace body includes a first furnace body, a second furnace body and a third furnace body. A first heating mechanism and a graphite crucible are arranged inside the first furnace body, the first heating mechanism being used for heating the graphite crucible. A first collection cylinder is in communication with a second collection cylinder. The device for recovering arsenic and gallium of the present disclosure is arranged with a structure for realizing directional condensation of gallium arsenide clusters and arsenic vapor, respectively, to realize high-purity recovery of arsenic and gallium.

Device and method for recovering arsenic and gallium

A method for preparing a carbon nanotube sodiophilic metal anode-free sodium metal battery electrode material is provided, and the method includes the following steps: the carbon nanotubes are modified by a dielectric barrier plasma device; the modified carbon nanotubes are mixed and stirred with a sodiophilic metal salt to obtain a precursor slurry; the precursor slurry is dried, placed in a tube furnace after drying, and heated by introducing a reducing gas to react, thereby obtaining a carbon nanotube sodiophilic metal anode-free sodium metal battery electrode material. The electrode material prepared by the method has a stable structure, excellent electrical conductivity, and excellent sodium affinity, and can be applied to anode-free sodium metal battery electrode materials. The entire preparation process is controllable, the synthesis cycle is short, and the operation is simple.

Carbon nanotube sodiophilic metal anode-free sodium metal battery electrode material, preparation method therefor and application thereof

A rapid preparation method of transition metal borides includes steps of: using a tungsten rod as the cathode, and a block mixture of boron powder and metal oxide as the anode, the block mixture and the tungsten rod are placed in an plasma device; the plasma device is evacuated, and then filled with a buffer gas and an electric arc is started to obtain a transition metal boride. The present disclosure adopts the direct current arc plasma method with the advantages of simple operation, low cost, environmental friendliness and controllable reaction atmosphere to prepare the transition metal boride, the preparation process is simple, the preparation process is fast, and the environment will not be affected.

Preparation method of transition metal borides

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.

Method for preparing sodium super ionic conductor solid electrolyte by low-dimensional crystallization

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.

Method for plasma modification of sodium super ionic conductor type solid electrolyte

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.

Device for continuous treatment of materials containing volatile components

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.

Integrated method for purifying metal gadolinium and preparing gadolinium oxide nanomaterials by arc plasma

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.

Method for production of nitrogen-doped single wall carbon nanohorns from anode graphite of wasted lithium-ion batteries

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.

Method for comprehensively processing noble lead

A method for producing stannous sulfide, the method including: 1) heating a tin-containing material to 200-600&#xb0; C., and mixing sulfur with the tin-containing material heated, to yield a product; and 2) distilling the product in a vacuum furnace at a pressure of 1-500 pascal.

Method for producing stannous sulfide

A vacuum refining furnace, including a furnace body, a graphite heater, an electrode, and a sealed furnace housing. The furnace body includes an evaporation laminate, a graphite condensing casing, and a graphite insulating casing. The evaporation laminate includes a plurality of evaporators. The evaporation laminate is nested within the graphite insulating casing, and the graphite insulating casing includes a plurality of through holes. At least two graphite condensing casings having different diameters are provided. The graphite insulating casing is nested within the graphite condensing casing having a smallest diameter, and the graphite condensing casing having a relatively small diameter is nested within the graphite condensing casing having a relatively large diameter. All the graphite condensing casings except for the graphite condensing casing having the largest diameter include a plurality of through holes.

Vacuum refining furnace

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Kunming, China

Bin Yang