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摘 要:Leaching of rare earths Y,La and Ce by sulphuric acid from fine-grained zirconosilicate ore was investigated using Taguchi method of experimental...,leaching temperature,grind size and dilution.Statistical analysis showed that sulphation baking was a significant step for the leaching of rare earths from the whole-of-ore and optimized leaching......
J. Cent. South Univ. (2016) 23: 39-43 DOI: 10.1007/s11771-016-3046-8 Kinetic study on leaching of nickel from Turkish lateritic ore in nitric acid solution Tevfik AGACAYAK, Veysel ZEDEF, Ali ARAS... of nickel from lateritic ore in nitric acid solution was investigated. Experimental parameters used were stirring speed (100-600 r/min), temperature (40-96 °C), nitric acid concentration (0.1-2 mol/L......
STUDY ON GREY FORECASTING MODEL OF COPPER EXTRACTION RATE WITH BIOLEACHING OF PRIMARY SULFIDE ORE H.C. Jiang1,B.H. Yang1,A.X. Wu2,Y. Xi3,X.S. Chen1 (1.School of Resources & Safety, Central South..., China) Abstract:A model GM (grey model) (1,1) for forecasting the rate of copper extraction during the bioleaching of primary sulphide ore was established on the basis of the mathematical theory......
Leaching process of rare earths from weathered crust elution-deposited rare earth ore TIAN Jun(田 君)1, 2, CHI Ru-an(池汝安)3, YIN Jing-qun(尹敬群)2 1. School of Resources Processing and Bioengineering...) from the weathered crust elution-deposited rare earth ore were investigated frow the viewpoints of kinetics, hydrodynamic and mass transfer. The results show that the leaching hydrodynamics follows......
J. Cent. South Univ. Technol. (2010) 17: 954-958 DOI: 10.1007/s11771-010-0583-4 Comprehensive utilization of kaolin ore accompanying muscovite YU Lian-xiang(喻连香)1, 2, WANG Hai-dong(王海东)1, QIU...-bleaching and flotation was widely discussed in this work. At last, a mineral technology of comprehensive utilization for resources of muscovite-type kaolin was developed. 2 Properties of raw ore......
J. Cent. South Univ. (2012) 19: 77-84 DOI: 10.1007/s11771-012-0975-8 Leaching kinetics of low-grade copper ore with high-alkality gangues in ammonia-ammonium sulphate solution LIU Zhi-xiong(刘志雄)1, 2... Engineering, Jishou University, Jishou 416000, China ? Central South University Press and Springer-Verlag Berlin Heidelberg 2012 Abstract: The leaching kinetics of low-grade copper ore with high-alkality......
The Shilu Iron Ore Deposit in Hainan Province, South China: A Structurally and Hydrothermally Reworked and Re-Enriched Lake-Superior-Type BIF Iron Deposit () 摘要: The Shilu iron ore deposit, located in the western Hainan Province, South China, is one of the most important iron-ore mining districts in China not only for its huge reserves of hematite- rich ores, but also for its potentially......
J. Cent. South Univ. Technol. (2010) 17: 765-769 DOI: 10.1007/s11771-010-0554-9 Extraction of valuable metals from low-grade nickeliferous laterite ore by reduction roasting-ammonia leaching method... nickeliferous laterite ore using a reduction roasting-ammonia leaching method. The reduction roasting-ammonia leaching experimental tests were chiefly introduced, by which fine coal was used......
Direct reduction of iron ore by biomass charHai-bin Zuo1,2,Zheng-wen Hu2,Jian-liang Zhang2,Jing Li2,Zheng-jian Liu21. State Key Laboratory of Advenced Metallurgy, University of Science and Technology... the process and mechanism of iron ore reduced by biomass char were investigated and compared with those reduced by coal and coke. It is found that biomass char has a higher reactivity. The increase of carbon......
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