全泥氰化尾矿压滤洗涤脱氰研究  

Pressure Filtration and Cake Washing for Cyanide Removal from All-slime Cyanidation Tailing

作　　者：郑春龙 畅永锋 袁嘉声 谢敏雄 蒋旺 徐广平 董广强 路殿坤 ZHENG Chun-long;CHANG Yong-feng;YUAN Jia-sheng;XIE Min-xiong;JIANG Wang;XU Guang-pin;DONG Guang-qiang;LU Dian-kun(School of Metallurgy,Northeastern University,Shenyang 110819,China;Chifeng Chaihulanzi Gold Mining Co.,Ltd.,Chifeng 024039,Inner Mongolia,China)

机构地区：[1]东北大学冶金学院,沈阳110819 [2]赤峰柴胡栏子黄金矿业有限公司,内蒙古赤峰024039

出　　处：《有色金属（冶炼部分）》2021年第9期75-79,共5页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家重点研发计划项目(2018YFC0604604)。

摘　　要：氰化提金工艺产出大量的氰化尾矿,在最终处置前需对其进行脱氰处理。针对全泥氰化工艺产出的尾矿浆,开展了压滤洗涤工艺研究,考察了洗涤比对氰渣滤饼置换洗涤效果的影响。实验室小型试验研究结果表明,洗涤比小于2~3时,洗涤效率随洗涤比大致呈线性增长趋势,当洗涤比超过3后,继续增大洗涤比对洗涤效果改善非常有限。工业规模试验结果也验证了对氰渣滤饼进行置换洗涤时存在适宜的洗涤比范围。Large quantities of cyanide-containing tailings produced in cyanidation processes need to be de-cyanided prior to final disposal.Effects of washing ratio on efficiency of replacement washing of cyanide tailing pressure-filtering cake produced by all-slime cyanidation process were investigated.The results of small-scale laboratory tests show that washing efficiency rises approximately linearly with washing ratio within 2—3.Rising washing ratio beyond three results very limited impact on washing performance.Industrialscale tests confirm that there is a suitable range for selecting of washing ratio to compromise cyanide washing efficiency and facility utilization.

关 键 词：氰化尾矿 压滤 滤饼洗涤 

分 类 号：TF831[冶金工程—有色金属冶金]