【摘要】 云南磨憨砂岩铜矿含铜0. 77%,其中以氧化铜形式存在的铜金属率达45. 45%。孔雀石为主要铜矿物和目的矿物,具有氧化不充分,与褐铁矿伴生的特点,为难选矿石。浮选试验结果表明,以3 000 g/t石灰作调整剂和抑制剂、1 000 g/t硫化钠作活化剂、90 g/t丁基黄药作捕收剂、35 g/t松醇油作为起泡剂,在磨矿细度-74μm占比85%的条件下,经过"三次粗选—二次精选—一次扫选"流程,可实现铜品位18. 006%,铜回收率80. 01%的浮选指标。更多还原

【Abstract】 A sandstone copper deposit in Mohan,Yunnan contains 0. 77% copper,in which oxide copper accounts for 45. 45% of the metal rate. The main copper mineral is malachite. Due to its insufficient oxidation and highly mixed with limonite blending,the ore is relatively refractory. The flotation experiment results show that:3 000 g/t lime as regulator and depressor,1 000 g/t Na2 S as activator,90 g/t butyl xanthate as collector,35 g/t pine oil as frother,under the grinding fineness of-74 μm accounted for 85%,after 3 roughing-2 selecting-1 scavenging,we had a result of 18. 006% grade and 80. 01% recovery.更多还原