共搜索到3281条信息，每页显示10条信息，共329页。用时：0小时0分0秒265毫秒
Rare Earths, Niobium and Tantalum Minerals in Bayan Obo Ore Deposit and Discussion on Their Genesis 张培善1,宋仁奎1,陶克捷1,杨学明1,杨主明1 (1.Institute of Geology and Geophysics, Chinese Academy of Sciences... time-scale of metallogenesis, and some other factors, it is supposed that genesis of rare-earths, niobium and tantalum minerals in Bayan Obo ore deposit are closely related with hydrothermal......
Study on experiment and mechanism of thermal dissolved sulfuration of low grade lead-zinc oxide ore in lanpin Jijun WU1,Bin YANG1,Minghua JIANG1,Yang ZHOU1,Yuchun ZHAI3 (1.Faculty of Materials..., Northeastern University, Shenyang 110004, China) Abstract:ead-zinc oxide ore reaches 60% under the conditions of pH 5.9-7.5, the sulfuration temperature of 130 ℃, sulfuration time of 180 min and the stirring......
J. Cent. South Univ. Technol. (2011) 18: 848-853 DOI: 10.1007/s11771-011-0772-9 Simulation of pore scale fluid flow of granular ore media in heap leaching based on realistic model YANG Bao-hua(杨保... and Technology Beijing, Beijing 100083, China ? Central South University Press and Springer-Verlag Berlin Heidelberg 2011 Abstract: Two-dimensional images of the granular ore media with different grain sizes......
......
is a promising method to upgrade oolitic hematite ore. An oolitic hematite ore was roasted using suspension roasting technology at different temperatures. The phase transformation for iron minerals... on the phase transformation of hematite to magnetite. The transformation ratio increases with increased temperature. After roasting, the magnetic susceptibility is significantly improved, while iron ore......
Fundamentals of fast reduction of ultrafine iron ore at low temperaturePei Zhao and Peimin Guo State Key Laboratory for Advanced Iron and Steel Processes and Materials, China Iron and Steel Research Institute Group, Beijing 100081, China摘 要:Fundamentals on the fast reduction of ultrafine iron ore at low temperature, including characterization......
molybdenum ore LIN Qing-quan(林清泉)1, 2, GU Guo-hua(顾帼华)3, WANG Hui(王晖)2, WANG Chong-qing(王重庆)2, LIU You-cai(刘有才)2, FU Jian-gang(符剑刚)2, ZHU Ren-feng(朱仁锋)3 1. School of Chemistry and Chemical Engineering... is proposed for improving the recovery of molybdenite fines from a finely-disseminated molybdenum ore. To maximize the flotation recovery of molybdenum, process mineralogy of raw ore, contrast tests......
J. Cent. South Univ. (2016) 23: 1584-1590 DOI: 10.1007/s11771-016-3212-z Acid leaching decarbonization and following pressure oxidation of carbonic refractory gold ore ZHANG Du-chao(张杜超)1, 2, XIAO... refractory gold ore and the following pressure oxidation were studied. In the carbonate decomposition procedure, the effects of liquid-to-solid ratio and reaction time on decomposition ratio......
Cyanidation of gold clay ore containing arsenic and manganeseYu-liang Li,Jian Liu,and Wei-sheng Guan School of Environmental Science and Engineering,Chang’an University,Xi’an 710054,China摘 要:<正>The extraction process of gold and silver from the gold clay ore containing arsenic and manganese was investigated.With the conventional technique......
Development of carbon composite iron ore micropellets by using the microfines of iron ore and carbon-bearing materials in iron makingJagannath Pal,Satadal Ghorai,Avimanyu DasNational Metallurgical Laboratory, Council of Scientific and Industrial Research摘 要:Iron ore microfines and concentrate have very limited uses in sintering processes. They are used......
