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提高含砷金精矿二段焙烧—氰化工艺金浸出率的试验研究
Experimental researches on enhancing gold leaching rate of a gold concentrate containing arsenic with two-stage roasting and cyanidation technique
【摘要】 在试验研究基础上,提出了一种提高含砷金精矿二段焙烧—氰化浸出工艺金浸出率方法。试验结果表明,含砷金精矿经一段焙烧(450~500℃)除砷后,加入一定量的添加剂SR,再进行二段焙烧(630~650℃),然后经稀硫酸除铜后进行氰化浸出,可使金的氰化浸出率提高4.65%。该方法可获得较好的经济效益和社会效益。
【Abstract】 Based on experimental researches,a two-stage roasting and cyanidation technique is proposed to enhance the gold leaching rate of a gold concentrate containing arsenic.After the first stage roasting(450~500 ℃) to remove arsenic,an additive SR is added before the second stage roasting(630~650 ℃),and then dilute sulphuric acid is used for copper removal,the final process is cyanidation leaching.The test results show that the leaching rate of gold increases 4.65%,and good economic and social benefits are obtained.
【关键词】 含砷金精矿;
二段焙烧;
氰化;
金;
浸出率;
【Key words】 gold concentrate containing arsenic; two-stage roasting; cyanidation; gold; leaching rate;
【Key words】 gold concentrate containing arsenic; two-stage roasting; cyanidation; gold; leaching rate;
- 【文献出处】 黄金 ,Gold , 编辑部邮箱 ,2011年06期
- 【分类号】TF831
- 【被引频次】15
- 【下载频次】191