AFFECTING FACTORS STUDY OF AMMONIA LEACHING LOW GRADE ZINC OXIDE ORE
Received:June 15, 2011            Published Online:January 04, 2012
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DOI:10.3969/j.issn.1005-7854.2011.04.016
KeyWord:zinc oxide ore;ammonia leaching;affecting factors
     
AuthorInstitution
WEI Zhi-cong Faculty of Land Resource Engineering,Kunming University of Science and Technology,Kunming ,China
FANG Jian-jun Faculty of Land Resource Engineering,Kunming University of Science and Technology,Kunming ,China
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Abstract:
      In order to determine the best leaching conditions of ammonia leaching process, through the method of laboratory stirring and leaching, the effecting elements of ammonia leaching refractory zinc oxide ores of Lanping, Yunnan Province are studied The optimum conditions are obtained as follows:ammonia concentration 3mol/L,ammonium bicarbonate1.5mol/L,granularity (-0.074mm) about 85%, solid to liquid ratio 4:1, and leaching time 2 h.
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