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of gold ore in sequence of microwave > UV > ultrasonic. During gold ore bioleaching, the bacterial mutant after mutation by microwave had the best effect on the extraction rates of arsenic.... To study substrate utilization of the strain isolated, 9K liquid medium was supplemented with varied energy sources: FeSO4·7H2O (4.48%), sulfur (1%), gold ore (5%), pyrrhotite (5%), sodium thiosulfate(1......
. ZHANG Shu hui, L Qing, HU Xiao. Thermodynamics of arsenic removal from arsenic bearing iron ores[J]. The Chinese Journal of Nonferrous Metals, 2011, 21(7): 1705-1712. [16] 曹明艳, 戴永年, 司马忠志. 砷钴矿真空蒸馏脱砷研... a higher temperature and a lower pressure. The calculated suitable temperature range for sulfur recovery in this process is 392-490 K. The Mo content of molybdenum metal ball obtained by experiments......
archaea; sulfur oxidation activity; characterization; bioleaching 1 Introduction Microorganisms are important in the bioleaching of the sulfide ores in heap or tank reactor [1]. Currently, the mesophilic microorganisms are widely used in the hydrometallurgical field such as leaching of secondary metal sulfides minerals and pretreatment of metal sulfide-containing gold ores [2]. However, the copper......
for gold dissolution. The dissolution of gold in cyanide media is a heterogeneous process. The main problem in examining the dissolution of gold in the given medium including gold ores is determining... is necessary to determine the optimum conditions for modeling of gold leaching in cyanide media. Many researchers studied on dissolution and modeling of gold ores cyanidation [1-8]. Artificial neural network......
removal and gold extraction from high sulfur and arsenic gold concentrate by calcining[D]. Changsha: Central South University, 2014. [33] 杨喜云, 刘政坤, 郭孔彬, 徐 徽, 石西昌. 硫脲-硫氰酸钠浸出难处理金矿及浸出剂的稳定性[J]. 中国有色金属学报, 2014...-yuan, XU Liang, ZHAO Zhuo, ZHENG Ya-jie, TIAN Yong-pan, ZHANG Yu-ming. Comprehensive treatment technology for high antimony dust from matte smelting process of refractory gold concentrate[J......
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solution maintains high ability to associate H+, thus it becomes sensitive to the pH value. 4 Desorption of sulfur dioxide with ultrasound The prepared citric acid-sodium citrate buffer solution (θ=30... Absorption of sulfur dioxide using membrane and enhancement of desorption with ultrasound XUE Juan-qin(薛娟琴), LI Jing-xian(李京仙), LU Xi(卢 曦), MAO Wei-bo(毛维博), WANG Yu-jie(王玉洁), WU Ming (吴 明......
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Consolidation mechanism of gold concentrates containing sulfur and carbon during oxygen-enriched air roastingQian Li,Fang-zhou Ji,Bin Xu,Jian-jun Hu,Yong-bin Yang,Tao JiangSchool of Minerals... concentrates containing sulfur and carbon when the initial temperature is greater than 600?C. To determine the phases that caused consolidation,gold concentrates were roasted under different conditions......
Behavior of S2O32- and SO32- in sulfur-bearing aqueous solution system for gold leaching CHEN Xiang-yang(陈向阳)1, 2, LAN Xin-zhe(兰新哲)1, 2, ZHANG Qiu-li(张秋利)1, ZHOU Jun(周 军)1, SONG Yong... ____________________________________________________________________________________________ Abstract: The concentrations of S2O32- and SO32- were measured in gold leaching systems, including thiosulfate system, polysulfide system and the modified lime sulfur synthetic......
