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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......
">In this study,how to improve the stability of reduced manganese oxide ore was discussed by investigating reoxidation conditions and kinetics mechanism in the cooling process of manganese dioxide ore... of manganese in ore and the reoxidation kinetics of reduced products were studied.The results show that decrease of reduction temperature and time,and increase of raw materials thickness and little H2SO4......
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......
> 关键词: 铅锌烧结;粘结剂;帝国熔炼法; 中图分类号: TF81 收稿日期:1999-07-25 基金:国家自然科学基金!资助项目 ( 5 97740 18); New highly effective binder for lead-zinc sintering Abstract: In order to increase the lumpy rate of lead zinc sintering, a new kind of high effective binder L was screened from eighteen kinds of binder, which is an organic binder raising the strength......
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......
economic significance of associated metals of copper, cobalt, nickel, silver, lead and zinc, and of non-metals of dolomite, quartzite,barite,gypsum and sulfur. [全文内容正在添加中] ...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......
