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红土镍矿酸浸沉镍后液中镁资源化的研究进展
引用本文:付海阔,王亚秦,莫裕杏,赵易,周彩凤.红土镍矿酸浸沉镍后液中镁资源化的研究进展[J].矿产综合利用,2013(6).
作者姓名:付海阔  王亚秦  莫裕杏  赵易  周彩凤
作者单位:广西银亿科技矿冶有限公司,,,,
摘    要:红土镍矿的加压酸浸、常压酸浸、堆浸工艺分别适用于褐铁矿型红土镍矿、过渡层和硅镁镍矿型红土镍矿,两种或两种以上的湿法联合处理工艺对矿石适用范围更广。在红土镍矿酸浸过程中,Mg和Ni、Co等同时被不同程度的浸出进入溶液,浸出液沉淀富集Ni、Co后产生大量的含镁废水。若不对其进行有价回收,不仅造成了资源的浪费,还会污染环境。本文综述了红土镍矿酸浸沉镍后液中Mg资源化工艺的研究进展及工业化情况,其中包括沉镍后液中Mn(II)的净化,并对今后的研究发展方向进行了展望,以期为红土镍矿中Mg的综合回收提供技术参考。

关 键 词:红土镍矿  酸浸    资源化  研究进展

Research Progress on Comprehensive Utilization of Magnesium from Leaching Liquor of Nickel Laterite Ore in Hydrometallurgical Processes
Fu Haikuo,Wang Yaqin,Mo Yuxing,Zhao Yi and Zhou Caifeng.Research Progress on Comprehensive Utilization of Magnesium from Leaching Liquor of Nickel Laterite Ore in Hydrometallurgical Processes[J].Multipurpose Utilization of Mineral Resources,2013(6).
Authors:Fu Haikuo  Wang Yaqin  Mo Yuxing  Zhao Yi and Zhou Caifeng
Institution:Guangxi Yinyi Mining & Metallurgy Technology Co. Ltd.,Yulin,Guangxi,China,,,,
Abstract:High pressure acid leaching (HPAL), atmospheric leaching (AL) and heap leaching are suitable for the limonite, transition layer and saprolite fractions of nickel laterite ores respectively. Technology associated with two or more hydrometallurgical processes would serve for a wider scope of nickel laterite ores. In hydrometallurgical processe, Magnesium, nickel and cobalt are extracted from nickel laterite ores into leach liquor to varying degrees. Large quantities of waste water, the major ingredient of which is magnesium sulfate, will come into being once the leach liquor is precipitated for recovery of nickel and cobalt. If magnesium was not made full use of, it would give rise to the waste of resource and environmental contamination. Research progress on comprehensive utilization of magnesium from leach liquor of nickel laterite ores in hydrometallurgical processes was reviewed in this paper, methods for removal and recovery of manganese from leach liquor included. Moreover, the perspective of the research direction was also put forword, which would provide a certain reference to comprehensive utilization of magnesium in future.
Keywords:Nickel laterite ores  Acid leaching  Magnesium  Comprehensive utilization  Research progress
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