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Biooxidation-thiosulfate leaching of refractory gold concentrateHe-fei Zhao1,2,Hong-ying Yang1,2,Lin-lin Tong1,2,Qin Zhang1,2,Ye Kong1,21. Key Laboratory for Ecological Metallurgy of Multimetallic... leaching of gold from refractory gold concentrate was investigated. Mineralogical studies on the concentrate showed that very fine gold grains(<10 μm) were encapsulated in pyrite and arsenopyrite......
concentrate and copper-bearing refractory gold ore by iodine-iodide solution YUAN Xi-zhen1, LI Shao-ying1, SUN Chun-bao1, WANG Hai-xia2, ZHAO Liu-cheng1, LI Gen-zhuang1, GUO Lin-zhong3 (1. Key Laboratory for High-efficient Mining and Safety of Metal Mines, Ministry of Education, University of Science and Technology Beijing, Beijing 100083, China; 2. Shanxi Zhongtiaoshan Engineering Design......
; selective laser sintering; refractory metal materials; [全文内容正在添加中] ......
NEW FLOTATION TECHNOLOGY OF REFRACTORY GRAPHITE ORES IN PINGHE MINE黎军,李继业摘 要:<正>Pinghe graphite of Sichuan Province is the fine graincrypto-crystal mixed refractory graphite ores.This paper introduces a newflotation technology on this kind of ores of one time rough grinding-rougher flotation-scavenger flotation-five times regrindings......
Three-dimensional simulation of sintering crunodes of metal powders or fibers by level set methodCHEN Dong-dong(谌东东)1, ZHENG Zhou-shun(郑洲顺)1, WANG Jian-zhong(王建忠)2, TANG Hui-ping(汤慧萍)2, QU Xuan-hui(曲选辉)3(1. School of Mathematics and Statistics, Central South University, Changsha 410083, China;2. State Key Laboratory of Porous Metal Materials (Northwest Institute for Nonferrous Metal Research),Xi......
的多元素含量方面是最具成本优势的.另外,它使对在包含绝缘层和(或)镀层及两者化合物的平面上的高灵敏度的含量深度分布分析成为可能.本文着重介绍直流辉光质谱技术用于监测痕量至超含量元素分析技术目前的进展以及直接采样分析实践中应当采用的策略. 关键词:高温材料; 难熔金属; 痕量杂质; 元素浓度分布; 辉光放电质谱法; high temperature material; refractory metal; trace impurities; element concentration distribution; glow-discharge mass spectrometry; [全文内容正在添加中] ......
Sphericizing metal powders by mechanical means WANG Fu-xiang(王富祥), GAI Guo-sheng(盖国胜), YANG Yu-fen(杨玉芬) Key Laboratory for Advanced Materials of Ministry of Education, Department of Materials... shaped metal powders were impacted and sphericized by using high speed airflow impact method particles composite system(PCS). The optimum technological parameters for the metal powders processed were......
Kinetics of leaching refractory gold ores by ultrasonic-assisted electro-chlorinationPing Zhu1), Xin-jiong Zhang1), Kun-fang Li1), Guang-ren Qian1), and Ming Zhou2) 1) College of Environmental...="ChDivSummary">The resources of refractory gold ores are abundant, and their effective treatment can bring good economic benefits. This paper in-vestigated the kinetics of leaching gold from refractory gold ores......
Improvement of Drill Performance in Metal Cutting Using MoST Solid Lubricant Coatings S. Hickman1,N.R. Thomas1,D.G. Teer1,S. Yang1 (1.Teer Coatings Ltd., West Stone House, West Stone, Berry Hill Industrial Estate, Droitwich, WR9 9AS, UK) 摘要:Coated tools are widely used in today''s metal cutting industries and have significantly improved machining productivity through reducing operation costs......
of metal and metal oxide, hydrometallurgy of chalcopyrite and metallic oxidized ore, and extraction and separation of metal ions, are introduced. Key words: ionic liquids; hydrometallurgy; nonferrous metals; metal oxides; mineral processing；extraction and separation of metal ions ......
