硫代硫酸金与高岭石的搅拌吸附试验研究
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摘要
以金矿中普遍存在的高岭石纯矿物作为研究对象,在不同的搅拌时间、初始金质量浓度、矿浆质量分数和搅拌强度下,进行搅拌吸附试验,得出了不同条件下高岭石能够吸附硫代硫酸金的结论。为了验证吸附试验结果,进行了红外光谱表征,发现高岭石吸附硫代硫酸金溶液后,其部分峰位发生了变化,且在2 953.31cm-1处有新峰生成,表明高岭石能够吸附硫代硫酸金,且既有物理吸附,又有化学吸附。
Taking the pure kaolinite minerals commonly found in gold mines as the research object,the stirring adsorption experiments were carried out under different agitation time,initial gold mass concentration,slurry mass fraction and agitation intensity with the conclusion that kaolinite could adsorb gold thiosulfate under different conditions.In order to verify the adsorption test results,the infrared spectroscopy was used to characterize it.It was found that after kaolinite adsorbed thiosulfate solution,some peak positions of kaolinite changed,and a new peak of kaolinite was generated at 2 953.31 cm-1,indicating that kaolinite could adsorb thiosulfate,both physically and chemically.
Taking the pure kaolinite minerals commonly found in gold mines as the research object,the stirring adsorption experiments were carried out under different agitation time,initial gold mass concentration,slurry mass fraction and agitation intensity with the conclusion that kaolinite could adsorb gold thiosulfate under different conditions.In order to verify the adsorption test results,the infrared spectroscopy was used to characterize it.It was found that after kaolinite adsorbed thiosulfate solution,some peak positions of kaolinite changed,and a new peak of kaolinite was generated at 2 953.31 cm-1,indicating that kaolinite could adsorb thiosulfate,both physically and chemically.
引文
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[4]张文轩,钟宏,符剑刚,等.难浸金矿石预处理工艺研究现状[J].稀有金属与硬质合金,2008,36(3):62-66.
[5]沈智慧,张覃,王贤晨,等.混合非氰药剂对微细浸染型金矿浸出的影响研究[J].矿冶工程,2015,35(1):72-75.
[6]宋鑫.中国难处理金矿资源及其开发利用技术[J].黄金,2009,30(7):46-49.
[7]樊文苓,王声远,吴建军.低温热液中金-硅络合作用的实验标定[J].科学通报,1993,38(10):933-935.
[8]杨怀文.硅金团簇的第一性原理研究[D].青岛:青岛大学,2012.
[9]吴正新,何承发,陆妩,等.X射线对金硅界面剂量增强效应的模拟研究[J].核技术,2013,36(6):10-15.
[10]孙戮.金银冶金(第二版)[M].北京:冶金工业出版社,1998.30-89.
[11]钟晋,胡显智,字富庭,等.硫代硫酸盐浸金现状与发展[J].矿冶,2014,23(2):65-69.
[12]H BJ,VPA.Dissolution chemistry of gold and silver in different lixiviants[J].Mineral Processing and Extractive Metallurgy Review,1988,4(1-2):95-134.
[13]李月娥,戴厚晨,储建华.用硫代硫酸盐浸出贵金属的热力学分析[J].贵金属,1984(3):10-19.
[14]D Z,SR,JPW.Gold and silver extraction by ammoniacal thiosulfate leaching from a rhyolite ore[J].Hydrometallurgy,1988,19(3):361-375.
[15]闻辂.矿物红外光谱学[M].重庆:重庆大学出版社,1988.105-119.