高杂质碱式碳酸铜的浸出工艺研究

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关键词：碱式碳酸铜；酸浸；中和；pH值

中图分类号：TF811 文献标识码：A 文章编号：1008-9500（2025）11-0017-03

DOI： 10.3969/j.issn.1008-9500.2025.11.006

Study on the Leaching Process of Basic Copper Carbonate with High Impurity

ZHANG Jinchi， ZHANG Fan， WANG Fang， XIE Xue，LIU Guiqing （Jiangsu BGRIMM Metal Recycling Science& Technology Co.， Ltd.， Xuzhou221121， China）

Abstract： Using high impurity basic copper carbonate as the experimental raw material，eficient copper recovery is achievedthrough sulfuricacid leaching and direct neutralization，andtheefects ofraw material state，sulfuricacid dosage， reaction temperature，andtimeoncopper leaching rate are analyzed.TocontroltheendpointpHvalueofthe leachate to meettherequirements of subsequent proceses and minimize the copper content in the slag，direct neutralization tests are conductedon the acid leaching slurry.Research has shown that under optimal leaching conditions，when the endpoint pH values are 2.O2 and 2.04， the copper content in the slag is 0.20% and 0.26% ，respectively， and the copper leaching rates are 99.53% and 99.45% ，respectively，achieving eficient copper recovery.

Keywords： basic copper carbonate; acid leaching; neutralization; pH value

高杂质碱式碳酸铜是铜精炼过程的重要产物，由碱式碳酸铜净化铜电解液得到[-3]。（剩余2573字）