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从酸浸高铜炉渣回收铜、锌的氨浸工艺研究

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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%.
Process Study on the Recovery of Copper and Zinc from Acid Leaching High Copper Furnace Slag by Ammonia Leaching Process
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.

acid leaching high copper slagammonia leachingammonium carbonatecopperzinc

朱梦龙、杨保俊、张少奇、王百年、窦旭

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合肥工业大学化学与化工学院,安徽合肥 230009

酸浸高铜炉渣 氨浸 碳酸铵

2024

安徽化工
安徽省化工研究院

安徽化工

影响因子:0.229
ISSN:1008-553X
年,卷(期):2024.50(4)