Yan Jia, Heyun Sun
Sulfuric acid solution containing ferric iron is the extractant for industrial heap bioleaching of copper sulfides. To start a heap bioleaching plant, sulfuric acid is usually added to the irrigation solution to maintain adequate acidity (pH 1.0–2.0) for copper dissolution. An industrial practice of heap bioleaching of secondary copper sulfide ore that began with only water irrigation without the addition of sulfuric acid was successfully implemented and introduced in this manuscript. The mineral composition and their behavior related to the production and consumption of sulfuric acid during the bioleaching in heaps was analyzed. This indicated the possibility of self-generating of sulfuric acid in heaps without exogenous addition. After proving by batches of laboratory tests, industrial measures were implemented to promote the sulfide mineral oxidation in heaps successfully.
@article{4e99da32-5d01-456d-a52d-a698f3088d8a,
title={2021 Jia Industrial Heap Bioleaching of Copper Sulfide Ore Started with Only Water},
author={Yan Jia and Heyun Sun},
year={2026},
language={en}
}TY - JOUR TI - 2021 Jia Industrial Heap Bioleaching of Copper Sulfide Ore Started with Only Water AU - Yan Jia AU - Heyun Sun PY - 2026 LA - en ER -
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