甘肃省礼县某金矿选矿试验研究

Investigation on Mineral Processing of a Gold Ore from Lixian County of Gansu Province

甘肃省礼县某金矿石含金5.67 g/t、银3.1 g/t、含硫2.67%,矿石性质研究结果表明,矿石中金矿物嵌布粒度细,裸露半裸露金可浮性较差是影响金回收的主要原因。试验通过对金矿物活化剂和捕收起泡剂研究,确定了碳酸钠作调整剂、T31作活化剂,丁基黄药作捕收剂,A25作捕收起泡剂的药剂制度,小型试验和工业试验均取得了良好的技术指标。

In this paper,the author studied a gold ore from Gansu which owns gold 5. 67 g / t,silver 3. 1g / t and pyrite2. 67%. According to the study of the ore properties,fine disseminated gold particles and poor flotability of the bare and half bare gold ore are the main reasons reducing the recovery of the gold. By doing experiments about the gold activators and collecting and foaming agents,the author finally adopt the sodium carbonate as adjusting agent,T31 as activator,butyl xanthate as collector and A25 as collecting and foaming agent. And finally excellent technical indexes are achieved at both of experimental researches and industrial tests.