云南某高硫难处理金精矿碱性加压预氧化-氰化浸金试验研究  

The Experimental Study on Alkali Pressure Pre-Oxidation-Cyanide Leaching Gold for one Refractory Gold Concentrate with High Sulphur in Yunnan

作　　者：李奇伟[1] 陈奕然[1] 陈明军[1] 葛云松[1] 

机构地区：[1]云南黄金矿业集团股份有限公司科技分公司,云南昆明650224

出　　处：《云南冶金》2015年第4期22-25,共4页Yunnan Metallurgy

摘　　要：对云南某高硫难处理金精矿进行碱性加压氧化—氰化浸金试验研究,考察了加压氧化各因素对氰化浸金的影响,在固液比1∶6、木质素磺酸钠5 g/t、Na OH用量25%、温度180℃、压力2.0 MPa、反应时间4h、搅拌转速450 r/min的加压氧化最优条件下获得了93.2%的较高金浸出率。The experimental study on alkali pressure pre - oxidation - cyanide leaching gold for one refractory gold concentrate with high sulphur in yunnan was carried out, which investigate the effect of pressure oxidatlon＇s factors on cyanide leaching of gold; the high- er gold leaching rate （93.2%） can be got under the optimal pressure oxidation conditions that the liquid-solid ratio is 1 ~ 6, sodium lignin sulfonate is 5g/t, NaOH dosage is 25%, the temperature is 180~C, the pressure is 2. 0MPa, the reaction time is 4 hours and the speed of agitator is 450r/min.

关 键 词：高硫难处理金精矿 碱性加压氧化 氰化浸金 

分 类 号：TF925[冶金工程]