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Catalytic effect of activated carbon on bioleaching of low-grade primary copper sulfide ores ZHANG Wei-min(张卫民)1, GU Shi-fei(谷士飞)2 1. School of Civil and Environmental Engineering, East China... June 2007 ______________________________________________________________ Abstract: The catalytic effect of activated carbon on the bioleaching of low-grade primary copper sulfide ores using mixture......
(Central South University), Changsha 410083, China)Abstract:For the low-grade copper sulfide ores with 0.99% of copper, of which 41.5% was primary copper sulfide, and 54.5% was secondary copper sulfide...Well-controlled column bioleaching of a low-grade copper ore by a novel equipmentWANG Jun(王军)1, 2, HU Ming-hao(胡明皓)1, 2, ZHAO Hong-bo(赵红波)1, 2, TAO Lang(陶浪)1, 2, GAN Xiao-wen(甘晓文)1, 2, QIN Wen-qing......
Bioleaching of low-grade copper sulfide ores by Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidansWANG Jun(王军)1, 2, ZHU Shan(朱珊)1, 2, ZHANG Yan-sheng(张雁生)1, 2, ZHAO Hong-bo(赵红波)1, 2.... The bioleaching rates reach their highest point in sulfide copper and chalcopyrite with a pulp density of 5% and 10%, respectively. Column flotation experiments of low-grade copper sulfide ores show......
from the much more abundant reserves of low-grade copper sulfide ores to meet the demand of market [2]. Currently, low-grade copper ores could not be economically processed by the conventional energy... characteristics of technical simplicity, low investments and appropriate high recovery yield [3, 4]. Since the bio-oxidation of sulfide ores is an exothermal process, temperature inside low-grade copper sulfide......
and 2. The main elements are Si, Al, Ca and Mg, with some Mo and As. The Cu grade is low and less than 1%. Most of the ores are primary sulfide copper, and contain small secondary copper sulfide... sample 3.1 Dump leaching of Dexing Copper Mine The Dexing Copper Mine is a porphyry copper deposit. 1.17 billion tons of low-grade ores will be produced during the open pit mining, and the total copper......
Simulated small-scale pilot heap leaching of low-grade copper sulfide ore with selective extraction of copper QIN Wen-qing(覃文庆), ZHANG Yan-sheng(张雁生), LI Wei-zhong(黎维中), WANG Jun(王 军) School...; Abstract: The bioleaching of low-grade copper sulfide ore and the selective......
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... and the modeling process of grey system theory. It was used for forecasting the rate of copper extraction from the primary sulfide ore during a laboratory microbial column leaching experiment......
. Therefore, recovery of copper from low-grade ores, waste rocks, tailings, etc, which were abandoned before has been focused due to the depletion of higher grade copper sulfides [1-4]. Hydrometallurgical methods are used to extract metallic values from low-grade ores [5-7]. Sulfuric acid is the most common lixiviant used for copper leaching [8-9]. However, acid leaching for the preponderance......
Mechanism of mechanical activation for sulfide ores HU Hui-ping(胡慧萍)1, 2, CHEN Qi-yuan(陈启元)1, YIN Zhou-lan(尹周澜)1, HE Yue-hui(贺跃辉)2, HUANG Bai-yun(黄伯云)2 1. Institute of Metallurgical...) and scanning electron microscopy(SEM), respectively. Based on the above structural changes for mechanically activated sulfide ores and related reports by other researchers, several qualitative rules......
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