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Improvement on Heap Leaching Technology of Low-grade Oxidized Ore at Yongping Copper Mine
Author(s): LIU Xiaoping, LIU Binggui
Pages: 215-
217
Year: 2004
Issue:
4
Journal: HYDROMETALLURGY OF CHINA
Keyword: 低品位氧化铜矿; 堆浸; 渗透; 技术; 改进;
Abstract: 分析了永平铜矿低品位氧化矿堆浸生产过程中存在的技术问题及问题产生的原因,考察了矿堆容重的改变及不同矿堆高度对溶液渗透速度的影响.详细介绍了对堆浸技术所进行的改进:⑴将原来前进式筑堆改为后退式筑堆;⑵在矿堆底部增加排水层;⑶变常规高层堆浸为硫酸熟化预处理薄层浸出;⑷实施分区喷淋与休闲轮换作业的布液制度.技术改进后,堆浸生产技术指标大为改观,取得了明显的经济效益.
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