CAJ | 학술논문

采用MLA技术对难选低品位钨钼矿石进行详细的工艺矿物学研究，测定了矿石矿物组成、嵌布粒度和解离度等工艺矿物学参数，为制定合理的选矿流程提供详实可靠的依据。结果表明，矿石中的主要有价矿物为白钨矿和辉钼矿；脉石矿物以石榴石（钙铁榴石、钙铝榴石）、透闪石、普通辉石、透辉石等磁性脉石为主，还有部分非磁性脉石石英、长石、萤石和方解石等。脉石矿物中富钙脉石含量较高，将对白钨矿选矿产生一定的影响。基于工艺矿物学的研究结果，选矿试验设计了强磁预先丢尾-先浮钼后浮钨的工艺技术路线，取得了钼精矿产率为0.125%，钼品位48.85%，钼回收率64.86%；钨精矿产率为0.27%，WO3品位65.23%，钨回收率74.22%的较好选矿技术指标。
채용MLA기술대난선저품위오목광석진행상세적공예광물학연구，측정료광석광물조성、감포립도화해리도등공예광물학삼수，위제정합리적선광류정제공상실가고적의거。결과표명，광석중적주요유개광물위백오광화휘목광；맥석광물이석류석（개철류석、개려류석）、투섬석、보통휘석、투휘석등자성맥석위주，환유부분비자성맥석석영、장석、형석화방해석등。맥석광물중부개맥석함량교고，장대백오광선광산생일정적영향。기우공예광물학적연구결과，선광시험설계료강자예선주미-선부목후부오적공예기술로선，취득료목정광산솔위0.125%，목품위48.85%，목회수솔64.86%；오정광산솔위0.27%，WO3품위65.23%，오회수솔74.22%적교호선광기술지표。
A detailed process mineralogy study was carried out by MLA for a refractory low-grade tungsten-molybdenum ore. The process mineralogy parameters, including mineralogical composition of ore, mineral grain size, and liberation degree were measured quantitatively to provide a basis for designing a reasonable beneficiation flowsheet. According to the process mineralogy results, the valuable minerals in the ore include scheelite and molybdenite;the gangue minerals are dominant with the magnetic gangues, such as garnet (including andradite and grossular), tremolite, augite, diopside, etc., and some non-magnetic gangues, for example, quartz, feldspar, fluorite, calcite, etc;there are large amounts of C-rich gangues in the ore, which will have a certain influence on separating scheelite. Based on these results, the technology process of pre-discarding the tailings by high intensity magnetic separation combined with floating molybdenum and tungsten sucessively was designed for beneficiation tests. The technology indicators are listed as the following:the yield of molybdenum concentrate is 0.125%with the grade and recovery of Mo being 48.85%and 64.86%respectively;the yield of tungsten concentrate is 0.27%with the grade and recovery of WO3 being 65.23%and 74.22%.