本发明涉及一种浸矿菌及其用于原生硫化铜矿高温生物堆浸工艺。所述的菌均保藏在中国典型培养物保藏中心,地址:武汉大学内,保藏号为CCTCC NOM207062;CCTCC NO M207063;CCTCC NO M207064;CCTCC NO M206029。所述的工艺是:将原生硫化铜矿石经粗碎、中细碎和含菌溶液喷淋预处理后得到适合生物堆浸的矿粒。矿粒经筑堆,堆浸喷淋,浸出液循环,富铜液萃取-反萃-电积等工序,获得市场可售的阴极铜。在堆浸过程采用了包含常温菌、中等嗜热菌和极端嗜热菌,运用分阶段进行含菌喷淋操作方法,使得堆内温度逐步提高。最终保持堆场温度10～80℃、PH值1.2～1.8和适当的FE浓度有利于浸矿细菌的活性。本工艺能够充分利用老矿山的低品位原生硫化铜矿资源,提高矿山综合利用水平,节约成本,提高利润。本发明特别适合应用于我国现有低品位原生硫化铜矿老矿山,以及西部高原偏远地区以原生硫化铜矿为主的铜矿资源的开发。
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