贵州某微细浸染型金矿硫氰酸盐浸出试验研究  

Experimental Study on Thiocyanate Leaching of the Micro-disseminated Gold Ore in Guizhou

作　　者：沈智慧[1,2,3] 蔡仕琪 张覃[1,2,3] 

机构地区：[1]贵州大学矿业学院,贵州贵阳550025 [2]贵州省非金属矿产资源综合利用重点实验室,贵州贵阳550025 [3]贵州省优势矿产资源高效利用工程实验室,贵州贵阳550025

出　　处：《矿冶工程》2015年第3期99-102,共4页Mining and Metallurgical Engineering

基　　金：国家"十二五"科技支撑计划课题(2012BAB08B06);贵州大学研究生创新基金(研理工2014070)

摘　　要：针对贵州某微细浸染型金矿,采用硫氰酸盐法进行浸出试验研究。通过试验得出直接浸出条件为:NH4SCN用量0.4 mol/L,KMn O4用量10 g/L,p H=2,液固比4∶1,在此条件下,金浸出率为49.71%。将原矿进行强化浸出,在Q-1和Q-3联合作用并增加充气的条件下,浸出条件与直接浸出一致,金浸出率明显高于直接浸出的浸出率,高达86.16%。For the micro-disseminated gold ore from Guizhou Province in China,experiment was conducted with thiocyanate leaching. Through a series of tests,the direct leaching conditions are ultimately determined as follows： with doses of NH4 SCN and KMn O4 recommended at 0. 4 mol / L and 10 g / L respectively,p H value at 2 and a liquid-solid ratio of 4∶ 1,the gold leaching ratio can reach 49. 71%. Moreover,if an intensified leaching process is adopted by using a combination of Q-1 and Q-3,as well as increasing aeration,the gold leaching ratio can be obviously increased up to86. 16% with other conditions same as that of direct leaching.

关 键 词：微细浸染型金矿 非氰浸出 硫氰酸盐 强化浸出 金 

分 类 号：TF111[冶金工程—冶金物理化学]