水成砂岩型铀矿床非铀矿物及对浸出铀的影响

摘要

大量的样品分析结果表明,我国已发现的水成砂岩型铀矿床中,主要非铀矿物基本相同,化学成分含量值域较窄.理论和实践证明,水成砂岩型铀矿床非铀矿物不同程度地影响铀的酸法浸出或碱法浸出:碳酸盐和无机磷导致酸浸的酸耗增大；黄铁矿和有机碳是消耗碱浸浸出剂和氧化剂的主要矿物.%A great deal of ore samples analysis results show that the predominant non-uranium minerals are the same among the aqueous sandstone uranium deposits discovered in China, further the values of their chemical composition fall into a narrow range, it is proved from theory and practice that these non-uranium minerals in some extent affect acid leaching and alkaline leaching.