云南高校图书馆联盟文献共享服务平台- HIGH-PURITY

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Production of ultrafine iron powder by low-temperature hydrogen reduction: properties change with temperature: 《Journal of Iron and Steel Research International》2024年第11期2645-2654,共10页Min Gan En-di Guo Hao-rui Li Yun-can Cao Xiao-hui Fan Zhi-yun Ji Zeng-qing Sun; support of the National Natural Science Foundation of China(52174330).; Ultrafine iron powder is widely used due to its excellent performance. Hydrogen reduction of fine-grained high-purity iron concentrate to prepare ultrafine iron powder has the advantages of low energy consumption, pol...; 关键词：High-purity iron concentrate Hydrogen reduction Ultrafine iron powder Mechanical activation High reaction activity

Tungsten separation behavior on preparation of high-purity cerium by combined vacuum gravity sedimentation-directional solidification: 《Journal of Rare Earths》2024年第6期1182-1186,I0007,共6页Dongwei Zhang Wenli Lu Minglei Xu Dehong Chen Xiaowei Zhang Chuang Yu Wensheng Yang Ruifeng Dong Zhiqiang Wang Liguo Han Zengdong Pang; Project supported by the National Key Research and Development Program of China(2022YFC2905203);the NationalScience and Technology Major Project of China(J2019-VI-0023-0140)。; In light of the difficult removal of harmful impurity tungsten(W)in Ce metal,in this paper a combined vacuum gravity sedimentation-directional solidification method was innovatively designed and the W separation behav...; 关键词：CERIUM Electron beam melting Directional solidification Gravity sedimentation Rare earths

Enhanced recovery of high-purity Fe powder from iron-rich electrolytic manganese residue by slurry electrolysis: 《International Journal of Minerals,Metallurgy and Materials》2024年第3期531-538,共8页Wenxing Cao Jiancheng Shu Jiaming Chen Zihan Li Songshan Zhou Shushu Liao Mengjun Chen Yong Yang; supported by the Key Research and Development Program of Guangxi Province,China (No.AB23075174);the National Natural Science Foundation of China (No.52174386);the Science and Technology Plan Project of Sichuan Province,China (No.2022YFS0459).; Iron-rich electrolytic manganese residue(IREMR)is an industrial waste produced during the processing of electrolytic metal manganese,and it contains certain amounts of Fe and Mn resources and other heavy metals.In thi...; 关键词：iron-rich electrolytic manganese residue slurry electrolysis high-purity iron powder leaching efficiency current efficiency

Production of high-purity Mg metal from dolomite through novel molten salt electrolysis and vacuum distillation: 《Journal of Magnesium and Alloys》2023年第4期1308-1320,共13页Hyeong-Jun Jeoung Tae-Hyuk Lee Jin-Young Lee Kyung-Woo Yi Jungshin Kang; supported by the National Research Councile of Science and Technology funded by the Korean Ministry of Industry in Korea(Project Nos.:1711173260,22-3803);the Korea Evaluation Institute of Industrial Technology funded by the Korean Ministry of Industry in Korea(Project Nos.:1415179713,20011157).; In this study,a novel Mg production process for producing high-purity Mg metal from dolomite was developed.When the electrolysis of calcined dolomite was conducted using Cu cathode and C anode in MgF_(2)–LiF molten s...; 关键词：High-purity magnesium DOLOMITE Magnesium oxide Electrolytic process Copper metal cathode Vacuum distillation

Characterization strategy of polymeric transition metal species transformation for high-purity metal recovery: 《Green Chemical Engineering》2021年第3期309-316,共8页Jiawei Wen Yan Wu Shujie Lin Pengge Ning; supported by China Postdoctoral Science Foundation(No.2020M670459,2020T130655);National Natural Science Foundation of China(No.22008248 and 51934006).; The aqueous metal species with similar chemical properties are usually extracted together,limiting deep separation for high-purity metal.However,rare attention has been paid to metal speciation characterization and tr...; 关键词：Metal ion speciation WPPC Vanadium recovery Polymerization behavior ESI-TOF-MS

Numerical simulation and experimental verification of axial-directional crystallization purification process for high-purity gallium被引量：3: 《Transactions of Nonferrous Metals Society of China》2020年第12期3404-3416,共13页You-dong DING Lan JIANG Zi-shen LI Gao-feng FU Liang YU; Project(51465014)supported by the National Natural Science Foundation of China;Project(Guike AA17204021-7)supported by the Innovation Driven Development Special Foundation of Guangxi,China。; A transient numerical model was applied to simulating the axial-directional crystallization purification(ADCP) process of gallium(Ga) raw material at different coolant temperatures(Tc), and the evolutions of melt/crys...; 关键词：high purity Ga axial-directional crystallization purification finite element method

Synthesis of high-purity ultrafine tungsten and tungsten carbide powders被引量：14: 《Transactions of Nonferrous Metals Society of China》2020年第6期1697-1706,共10页Kai-fei WANG Guo-hua ZHANG; Project(51725401)supported by the National Natural Science Foundation of China。; High-purity ultrafine W or WC powder was prepared via a two-step process composed of the carbothermic pre-reduction of WO2.9 and the following deep reduction with H2 or carbonization with CH4+H2 mixed gases. The effec...; 关键词：carbothermic pre-reduction CARBONIZATION TUNGSTEN tungsten carbide

Preparing high-purity iron by direct reduction?smelting separation of ultra-high-grade iron concentrate被引量：4: 《International Journal of Minerals,Metallurgy and Materials》2020年第4期454-462,共9页Feng Li Qing-jie Zhao Man-sheng Chu Jue Tang Zheng-gen Liu Jia-xin Wang Sheng-kang Li; the National Natural Science Foundation of China(No.51904063);the Fundamental Research Funds for the Central Universities,China(Nos.N172503016,N172502005,and N172506011);the China Postdoctoral Science Foundation(No.2018M640259).; A new process for preparing high-purity iron(HPI)was proposed,and it was investigated by laboratory experiments and pilot tests.The results show that under conditions of a reduced temperature of 1075°C,reduced time o...; 关键词：ultra-high-grade IRON concentrate HIGH-PURITY IRON coal-based direct reduction SMELTING SEPARATION pilot test

Nanoscale electropolishing of high-purity nickel with an ionic liquid被引量：1: 《International Journal of Minerals,Metallurgy and Materials》2019年第5期649-656,共8页Jon Derek Loftis Tarek M.Abdel-Fattah; High purity(>99.9% composition) nickel metal specimens were used in electropolishing treatments with an acid-free ionic liquid electrolyte prepared from quaternary ammonium salts as a green polishing solution. Voltamm...; 关键词：electrochemical POLISHING IONIC liquid Ni 2EG:1VB4

Equilibrium between titanium ions and high-purity titanium electrorefining in a NaCl-KCl melt被引量：7: 《International Journal of Minerals,Metallurgy and Materials》2014年第7期660-665,共6页Jian-xun Song Qiu-yu Wang Guo-jing Hu Xiao-bo Zhu Shu-qiang Jiao Hong-min Zhu; the National Science Foundation of China(Nos.50934001 and 51322402);the National High-Tech Research and Development Program of China (No.2012AA062302);the Program of the Co-construction with Beijing Municipal Commission of Education of China (Nos.00012047 and 00012085);the Program for New Century Excellent Talents in Universities(NCET-11-0577);the Fundamental Research Funds for the Central Universities(No.FRF-AS-11-003A); TiClx （x=2.17） was prepared by using titanium sponge to reduce the concentration of TiCl4 in a NaCl-KCl melt under negative pressure. The as-prepared NaCl-KCl-TiClx melt was employed as the electrolyte, and two para...; 关键词：TITANIUM ELECTRODEPOSITION ionic equilibrium high purity materials oxygen concentration

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