摘要
污酸中和渣为锌冶炼行业产生的废渣,目前主流行业采用板框压滤机压滤的中和渣w(H_2O)25%左右,其主要成分为硫酸钙和其他微量的铅、锌、砷、镉、汞等元素。通过对两段中和后产生的中和渣进行高效处理,使之成为替代水泥制备胶结材和替代水泥配置混凝土的有效材料。
Neutralized slag of the waste acid is the tailings generated from zinc smelting industry.The neutralized slag generated from plate filters which are currently employed in the mainstream industry contains about 25% water.The slag is primarily comprised of calcium sulfate and other heavy metal elements with trace amount,such as lead,zinc,arsenic,cadmium and mercury.The neutralized slag,generated after the highly efficient two-stage neutralization treatment of the waste sulphuric acid,is an effective resource for substitution of the cementing materials and the concrete for cement production.
作者
董高峰
杨腾蛟
孔金换
DONG Gaofeng;YANG Tengjiao;KONG Jinhuan(Henan Yuguang Zinc Industry Co.,Ltd.,Jiyuan,Henan,459000,China;Henan Clean Zinc Smelting Engineering Center,Jiyuan,Henan,459000,China)
出处
《硫酸工业》
CAS
2019年第3期40-42,共3页
Sulphuric Acid Industry
关键词
锌冶炼
污酸处理
中和渣
胶结材
混凝土
zinc smelting
waste acid treatment
neutralized slag
cementing material
concrete
