从酸浸高铜炉渣回收铜、锌的氨浸工艺研究
Process Study on the Recovery of Copper and Zinc from Acid Leaching High Copper Furnace Slag by Ammonia Leaching Process
朱梦龙 1杨保俊 1张少奇 1王百年 1窦旭1
作者信息
- 1. 合肥工业大学化学与化工学院,安徽合肥 230009
- 折叠
摘要
以硫酸浸取后的酸浸高铜炉渣为原料,以氨水-铵盐溶液为氨浸剂,以酸浸高铜炉渣中铜、锌元素的浸取率为考查指标,首先通过筛选实验,考查并确定氨浸剂溶液中较适宜的铵盐为碳酸铵;考查并确定酸浸高铜炉渣氨浸过程较适宜的工艺条件:浸取时间12h,浸取温度30℃,氨水初始浓度7.8mol·L-1,碳酸铵初始浓度1.31mol·L-1,搅拌速率200r/min,此优化条件下酸浸高铜炉渣中铜、锌的浸取率可达89.77％、90.64％.
Abstract
This paper uses the acid leaching high copper slag after sulfuric acid leaching as raw material,ammonia-ammonium solution as ammonium leaching agent,and the leaching rate of copper and zinc elements in acid leaching high copper slag as the index. The optimized conditions were:leaching time of 12 h,leaching temperature of 30℃,initial con-centration of ammonia 7.8 mol·L-1,initial concentration of ammonium carbonate 1.31 mol·L-1,stirring rate of 200 r/min,the leaching rate of copper and zinc from acid leaching high copper slag could reach 89.77％ and 90.64％ under this opti-mized condition.
关键词
酸浸高铜炉渣/氨浸/碳酸铵/铜/锌Key words
acid leaching high copper slag/ammonia leaching/ammonium carbonate/copper/zinc引用本文复制引用
出版年
2024
NETL
NSTL
万方数据