金矿选矿技术的研究与开发

IF 0.8 Q4 METALLURGY & METALLURGICAL ENGINEERING
B. Kenzhaliyev, A. Koizhanova, O. Atanova, D. Magomedov, H. Nurdin
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引用次数: 0

摘要

本文介绍了哈萨克斯坦金矿床1号和2号含金矿石的两个样品的工艺研究结果。对矿石样品进行了x射线荧光、x射线相、化学和矿物学等综合分析。测定了计算的初始金含量,x射线荧光分析表明,组成矿石的主要元素为氧(51%)和硅(33%)。x射线相分析表明,样品中石英和白云母的含量超过95%。根据矿物学分析结果,确定矿石中发现金的形式为游离金和氢氧化铁中的金。银以各种卤化物的形式存在于所研究的样品中。提出了一种包括重选和浮选在内的选矿方案。分选精矿和尾矿,精矿金回收率最高可达91%;分选丁基黄药试剂和发泡剂浮选富集,分选主精矿和对照精矿,分选终浮选尾矿。随后对该矿石进行了湿法冶金研究,以评估氰化钠对金提取的影响,并对矿石的初始样品以及在搅拌模式下获得的浮选和重精矿进行了浸出试验,发现氰化浸出是处理哈萨克斯坦含金矿床矿物原料和获得的浮选精矿的有效方法。在最佳条件下,金的回收率可达98%。所得结果为预测选矿方案、工艺优化和最大金回收率等主要工艺阶段的有效性提供了可能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Research and development of gold ore processing technology
This paper presents the results of technological studies of two samples of gold-bearing ore from the gold-bearing deposit of Kazakhstan deposits 1 and 2. A comprehensive analysis of ore samples by X-ray fluorescence, X-ray phase, chemical, and mineralogical methods was carried out. The calculated initial gold content was determined, and X-ray fluorescence analysis showed that the main elements that make up the ore are oxygen up to 51% and silicon up to 33%. X-ray phase analysis showed the presence of more than 95% quartz and muscovite in the samples. The form of finding gold in the ore, according to the results of mineralogical analysis, is defined as free gold and gold in iron hydroxide. Silver is present in the studied samples in the form of various types of halides. An ore beneficiation scheme has been developed and presented, including gravity and flotation. Gravity enrichment was carried out in two stages, with the production of concentrate and tailings, with the maximum recovery of gold in concentrate up to 91%, flotation enrichment using butyl xanthate reagents and a blowing agent, was carried out in two stages with the production of main and control concentrates and final flotation tailings. The subsequent hydrometallurgical study of the ore was carried out to assess the effect of sodium cyanide on the extraction of gold, tests were performed on the leaching of the initial samples of the ore and the obtained flotation and gravity concentrates in the agitation mode, it was found that cyanide leaching is an effective method for processing the mineral raw materials of the gold-bearing deposit of Kazakhstan, and the obtained flotation concentrates, with the recovery of gold into solution under optimal conditions up to 98%. The results obtained make it possible to predict the effectiveness of the main technological stages in the ore processing scheme, technology optimization, and maximum gold recovery.
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42.90%
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55
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