闪锌矿加压酸浸工艺及动力学试验研究
Hydrometallurgy of China(2020)
Abstract
研究了闪锌矿的氧压浸出并采用收缩核动力学模型分析了浸出反应动力学,考察了氧压浸出温度、初始酸浓度、搅拌速度、氧分压等对锌、铁浸出率的影响.结果表明:最佳条件下,闪锌矿的浸出主要受界面化学反应控制,表观活化能为42.43 kJ/mol;加压酸浸过程中,保持工艺参数稳定对降低浸出速率受扩散的影响及提高浸出率有利.
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