摘要
贵州西北地区五里平钼多金属矿床矿石性质复杂,矿石中钼的回收指标不理想。利用矿物自动分析技术BPMA、电子探针及化学物相分析等手段对矿石开展了系统的工艺矿物学研究,对钼的赋存状态进行深入分析。结果表明,矿石中的钼有55.60%以独立矿物彩钼铅矿和辉钼矿的形式存在,是选矿过程中需要加强回收的主要目的矿物;同时,还有32.37%和12.03%的钼分别以吸附态方式赋存于褐铁矿和高岭石中,需要采用湿法冶金工艺进行利用,而湿法回收褐铁矿中的钼成本太高,经济上不可行,对于吸附于高岭石中的钼,可以考虑采用酸浸或者碱浸工艺进行回收。本次发现的这种吸附态型钼矿床在自然界十分罕见,将拓宽该区域内的找矿方向,也为钼资源的优化利用提供了依据。
The ore property of Wuliping molybdenum polymetallic deposit in northwest Guizhou is complex,while the recovery index of molybdenum is not ideal.The means of mineral automatic analysis system(BPMA),electron probe micro analysis(EPMA)and chemical phase analysis has been utilized to study ore property and Mo occurrence state in the ore.The results show that molybdenum mainly exists in the form of independent mineral such as Wulfenite and Molybdenite;while 32.37%of Mo exists in limonite as well as 12.03%exists in kaolinite in the form of adsorption.This part of molybdenum is difficult to recover by beneficiation,and needs to be utilized by hydrometallurgical process.However,the cost of molybdenum recovery from limonite by hydrometallurgical process is too high and economically infeasible.Molybdenum adsorbed in kaolinite can be recovered by acid leaching or alkali leaching process.The discovery of this adsorbed molybdenum deposit is the first case in nature,which will enrich the prospecting theory in this area and lay a foundation for the optimal utilization of molybdenum resources.
作者
付强
王均
贾木欣
温利刚
王清
FU Qiang;WANG Jun;JIA Muxin;WEN Ligang;WANG Qing(BGRIMM Technology Group, Beijing 100160, China;State Key Laboratory of Process Automation in Mining & Metallurgy, Beijing 100160, China;Guizhou Provincial Bureau of Geology and mineral resources geology 113 Brigade, Liupanshui 553000, China)
出处
《矿产保护与利用》
2022年第1期123-128,共6页
Conservation and Utilization of Mineral Resources
基金
国家自然科学基金项目(51734005)
贵州省地质矿产勘查开发局地质科学研究项目(黔地矿科合〔2020〕21号)。
关键词
钼矿床
吸附态
工艺矿物学
赋存状态
BPMA
选矿
彩钼铅矿
辉钼矿
molybdenum deposit
adsorbed state
process mineralogy
occurrence state
BPMA
beneficiation
wulfenite
molybdenite