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J. Cent. South Univ. Technol. (2011) 18: 1418-1424 DOI: 10.1007/s11771-011-0856-6 Effect of chloride ion on bacterial pre-oxidation of arsenic-containing gold concentrate YANG Wei(杨玮)1, QIN Wen... Abstract: The bacterial pre-oxidation process of arsenic-containing gold concentrates and the bacterial activity under different chloride ion concentrations were studied by using a mixture......
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that with deoxygenizing, the reduction effects are relatively good. Key words: gold; gold extraction; NH4Cl-NH3-H2O; hydrometallurgy; thermodynamics; ammonium chloride ammonium chloride as extracting system is a new developing field with many merits. Above all, NH3 and Cl- ions existing in the system have......
of decomposition of ammonium jarosite bearing indium in NaOH medium CHEN Yong-ming, TANG Mo-tang, YANG Sheng-hai, HE Jing, TANG Chao-bo, YANG Jian-guang, LU Jun-yue (School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China) Abstract: The decomposition of ammonium jarosite bearing indium in NaOH medium were studied. The effects of NaOH addition, liquid-solid ratio......
metals from copper smelter slag by ammonium chloride treatment[J]. International Journal of Mineral Processing, 2013, 124: 145-149. [9] 刘欣伟, 冯雅丽, 李浩然, 蔡震雷, 杨志超. 硫酸铵焙烧法浸出镍磁黄铁矿中有价金属[J]. 中国有色金属学报, 2012... Engineering, 2013, 29(16): 50-56. [19] BORISOV V, D'YACHENKO A, KRAIDENKO R. Reaction of ammonium chloride with the copper(Ⅱ) sulfide and oxide, and identification of the reaction products[J......
氯化铵对铝酸锶:铕荧光光谱的影响李颖毅1,吴燕利2,李永绣2(1.江西省南昌市南昌大学材料科学与工程学院2.南昌大学 稀土中心,南昌 330031)摘 要:铝酸锶铕是一种性能优良,应用广泛的荧光材料,它具有绿色长余辉,根据其激发光谱,它能与紫光二极管匹配.氯化铵的添加使发光由绿向红转变,Eu3+(f→f)尖峰出现,氯化铵的添加改变其基质组成,Cl-的引入有利于Eu3+的形成.关键词:无机非金属材料; 铝酸锶铕; 荧光材料; 基质; 氯化铵......
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(Ⅱ) with quaternary ammonium chloride Abstract: The solvent extraction separation of cobalt (Ⅱ) and manganese (Ⅱ) from a waste solution containing saturation sodium chloride was investigated. The experimental results showed that quaternary ammonium chloride (QAC) with iso octanol as modifier and kerosene as diluent is suitable to separate cobalt (Ⅱ) and manganese......