纳滤膜处理除铁后浸出液富集铜的研究  

Study on Enrichment of Copper Leaching Solution after Removing Iron Using Nanofiltration Membrane

作　　者：刘军[1] 刘久清[2] 杨秋菊[2] 周钦[2] 

机构地区：[1]江西铜业集团公司德兴铜矿,江西德兴334224 [2]中南大学冶金与环境学院,湖南长沙410083

出　　处：《铜业工程》2013年第5期5-7,11,共4页Copper Engineering

基　　金：湖南省自然科学基金资助项目(20806094);湖南省科技计划重点项目(2010SK2011)

摘　　要：采用纳滤膜处理江西德兴铜矿除铁后生物浸出液,通过试验考察操作压力、温度等对渗透通量、铜离子截留率和渗透液电导率的影响。研究结果表明纳滤膜较佳操作条件为:温度30℃,运行压力15bar,流量14L/min;在此条件下浓缩3.7倍时,Cu2+截留率R为93.1%,浓缩液中Cu浓度为0.764 g·L-1。Enriching copper from biological leaching solution after removal of Fe by NF membrane technology is studied. The in-fluences of operating pressure and temperature on permeate flux, the copper rejection and the conductivity of permeate are investigated. Operating pressure 15bar, temperature 30℃, flux 14 L/min, concentrates 3.7 times are optimal conditions during the experiment. Un-mer this condition, the copper rejection is over 93.1% , the concentration of Cu in concentrated solution is 0. 764 g · L^-1.

关 键 词：纳滤 除铁后浸出液 铜 富集 膜 

分 类 号：TF18[冶金工程—冶金物理化学]