期刊论文

Zhan, H.-H.(zhanhhh@263.net)

中文

中南大学学报(自然科学版)

1672-7207

2012

43

5

1651-1655

国家自然科学基金资助项目（50774016）； 湖南省科技计划项目（2010NK3001,2011CK3069）；

本校为第一机构

在盐酸溶液中,以臭氧和过氧化氢为氧化剂、三氯化铁为助浸剂联合浸出方铅矿精矿制备氯化铅,考察各种操作参数对铅浸出率的影响。实验结果表明：搅拌速率为500 r/min、氯化钠初始质量浓度为250 g/L、反应温度为90℃、反应时间为180 min、三氯化铁初始质量浓度为25 g/L、过氧化氢初始质量浓度为6.66 g/L、盐酸初始浓度为0.3 mol/L、臭氧进口氧气流量为1.0 L/min是臭氧-过氧化氢联合浸出方铅矿的最佳操作参数,此时铅的浸出率达99.5%,产物氯化铅纯度达99.6%。

The lead chloride was prepared using ozone and hydrogen peroxide as oxidant to leach galena concentrate in the hydrochloric acid solution, with FeCl 3 as leaching agent. The influence of all kinds of operation parameters on the leaching rate of lead was studied. The experimental results show that the optimum parameters are as follows: stirring rate is 500 r/min, the initial concentration of sodium chloride is 250 g/L, reaction temperature is 90°C, reaction time is 180 min, the initial concentration of FeCl 3 is 25 g/L, the initial concentratio...