某难选低品位金矿的选矿试验研究  

Beneficiation Experimental Study on a Low-Grade Refractory Gold Ore

作　　者：余胜利[1] 王毓华[1] 张英[1] 王进明[1] 余世磊[1] 

机构地区：[1]中南大学资源加工与生物工程学院,长沙410083

出　　处：《有色金属（选矿部分）》2013年第2期17-21,25,共6页Nonferrous Metals（Mineral Processing Section）

摘　　要：对某难选低品位金矿进行的研究结果表明,载金黄铁矿的嵌布粒度微细和易浮脉石矿泥是影响金精矿金品位和回收率的两个重要因素,在强化载金黄铁矿捕收的同时,选择合适的调整剂可以显著提高金的选矿指标。原矿金品位为1.69 g/t时,实验室闭路试验可获得金回收率69.85%、金品位20.47 g/t的金精矿。The result of the benefication that the fine-grained dissemination auriferous experimental study on a low-grade refractory gold ore shows pyrite and the gangue easily to be floated are the two important factors which influent the grade and recovery of the gold concentrate, the gold ore dressing indexes can be improved by choosing appropriate modifier and enhancing the collection of auriferous pyrite. The gold concentrate with the recovery of 69.85% and the grade of 20.47 g/t Au can be obtained through the lab closed-circuit test while the gold grade of the raw ore is 1.69 g/t.

关 键 词：金矿 黄铁矿 强蚀变围岩 浮选 

分 类 号：TD953[矿业工程—选矿]