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; Abstract: The co-extraction behavior of galena-pyrolusite in a sodium chloride solution and the electrochemical mechanism of this process were investigated, and some factors affecting the leaching rate of Pb... in the presence of sodium chloride, thus promoting the reaction rate of galena. Key words: galena; pyrolusite; co-extraction behavior; electrochemical mechanism  ......
, and the stripping concentration of sulphuric acid is 90 g/L. Under the optimum extraction condition, the extraction rate and stripping efficiency are nearly 100% and 97%, respectively, and the co-extraction ammonia is only 36.1 mg/L. Key words: ammonia solution; extractant; solvent extraction; copper; co-extraction ammonia 东川汤丹高钙镁(CaO+MgO质量分数大于40 %),低品位(铜含量为0.64 %)氧化铜矿,是我国乃至世界都非常典型的难处理矿[1-6].氨浸-萃取-电积......
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Fabrication and wear behavior of CNT/Al composites JIANG Jin-long(姜金龙)1, WANG Hai-zhong(王海忠)2, YANG hua(杨华)1, XU Jin-cheng(徐金城)3 1. School of Science, Lanzhou University of Technology, Lanzhou... on the relative density, the hardness, and the friction and wear behavior of the composites under dry sliding condition were investigated using the ball (pin)-on-block tester. By scanning electron......
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