锌窑渣制备七水硫酸亚铁及回收铜、银的试验研究  

Experimental Study on Preparation of Ferrous Sulfate Heptahydrate and Copper, Silver Recovery by Zinc Kiln Slag

作　　者：李建福 林琳 秦泰 韦乃团 陈翠萍 王东 涂文鸿 LI Jianfu;LIN Lin;QIN Tai;WEI Naituan;CHEN Cuiping;WANG Dong;TU Wenhong(Xinlian Environmental Protection Technology Co.,Ltd.,Honghe,Yunnan 661011,China;Facnlty of Metallurgy and Energy Engineering,Kunming University of Science and Technology,Kunming,Yunnan 650500,China;Faculty of Environmental Science and Engineering,Kunming University of Science and Technology,Kunming,Yunnan 650500,China)

机构地区：[1]鑫联环保科技股份有限公司,云南红河661011 [2]昆明理工大学冶金与能源工程学院,云南昆明650500 [3]昆明理工大学环境科学与工程学院,云南昆明650500

出　　处：《云南冶金》2024年第6期77-81,共5页Yunnan Metallurgy

摘　　要：通过“磁选-浸出-蒸发结晶”方法对含锌窑渣进行处理,确定了磁选条件(粒度<0.075 mm占比为53.1%、液固比2∶1、磁感应强度为4000 Gs)及浸出条件(H2SO4浓度2 mol/L,温度85℃,时间4 h、液固比5∶1)。在此条件下铁总回收率为77%,铜、银总回收率为70%。Zinc-bearing kiln slag is treated through"magnetic separation-leaching-evaporating crystallization"method,it is confirmed the magnetic separation conditions(particle size<0.075 mm,the percentage is 53.1%,the liquid-solid ratio is 2∶1,the magnetic induction intensity is 4000 Gs)and leaching conditions(H2SO4 concentration is 2 mol/L,the temperature is 85℃,time is 4 h,the liquid-solid ratio is 5∶1).The total recovery rate is 77%under those conditions,the total recovery rate of copper,silver is 70%.

关 键 词：锌窑渣 磁选 七水硫酸亚铁 铜 银 

分 类 号：TD451[矿业工程—矿山机电]