贵州某微细浸染型金矿非氰浸出试验研究  

Study on the Non-cyanide Leaching of a Micro-disseminated Gold Ore Deposited in Guizhou

作　　者：沈智慧[1,2,3] 张覃[1,2,3] 李先海[1,2,3] 叶军建[1,2,3] 

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

出　　处：《有色金属（选矿部分）》2015年第3期52-56,共5页Nonferrous Metals（Mineral Processing Section）

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

摘　　要：采用新型非氰药剂SZS对贵州某微细浸染型金矿进行浸出探索试验,原矿直接浸出率较低,为60.53%,采用化学预处理方法对原矿进行预处理后,其浸出率均高于直接浸出率。当采用强氧化剂WH-2进行预处理时,金浸出率最高为66.48%。添加M-2进行预处理,浸出率最高为84.67%;添加M-1和M-2联合预处理,浸出率略低,为82.43%。添加M-1和M-3联合预处理,浸出率为86.71%,在此条件下增加充气,浸出率最高可达92.67%。In this research a new type non-cyanide agent SZS was applied to leaching of a micro-disseminated gold ore from Guizhou province, China. Direct leaching for the raw ore turned out a leaching ratio of 60. 53%. However, the leaching ratio was increased obviously by using 4 kinds of chemical compounds, WH-2, M-1, M-2, M-3 and various combination of them as pretreatment agents. In the case of WH-2 as a strong oxidizer, the gold leaching ratio was 66. 48% ; when M-2 was used the figure increased to 84. 67% ; while M-1 and M-2 were applied simultaneously, the leaching ratio decreased to 82. 43%. When M-1 and M-3 was used simultaneously, the leaching ratio was 86. 71% , on the basis of this, when air was pumped into the pulp, the figure climbed up to 92. 67% as a result.

关 键 词：微细浸染型金矿 浸出 化学预处理 

分 类 号：TF111.31[冶金工程—冶金物理化学]