金矿石焙烧脱砷新技术试验研究

The study of new technique to remove arsenic from high arsenic refractoty gold ores

通过分析砷及其相关化合物的物化性质 ,找到了一种保护条件下的深度脱砷方法。对于含砷高达 11.5 8%某金矿石 ,使用该法脱砷后渣含砷降到 0 .2 %以下 ,工艺稳定可靠。该方法在技术、经济、环保上可行 。

This paper analyze the physical and chemical character of arsenic and its chemical compound,concerned and introduces a method of highly removing arsenic in protection atmosphere.After treating the ore containing arsenic 11.58% by this method,the arsenic bearing rate of residue drops below 0.2%.This method is stable ,reliable and practical in technique,economic benefit and environmental protection,It is easy to be industrialized.