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
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