CAJ | 학술논문

赣南某深部浸染型白钨矿原矿品位低，嵌布粒度较细，矿物种类多且组成复杂，属于难选矿石.白钨因其良好的可浮性常用浮选的方法进行回收，白钨浮选依据浮选作业条件又可分为加温浮选与常温浮选，加温浮选虽然具有对矿石的适应性强，浮选指标稳定等优点，但需提供加温设备，选矿成本较一般工艺高，其应用也受到了限制.本试验采用白钨常温浮选的方法，在确定了最佳的碳酸钠用量、水玻璃模数和水玻璃用量的基础上，探究了白钨精选试验，确定了最佳的精选条件，在保证回收率的同时进一步提高了精矿指标.实验室小型闭路试验通过一粗二扫五精（其中包括一次空白精选）的浮选工艺流程，在原矿品位仅为0.22%的情况下，获得了WO3品位为69.84%、回收率为70.76%的白钨精矿.
공남모심부침염형백오광원광품위저，감포립도교세，광물충류다차조성복잡，속우난선광석.백오인기량호적가부성상용부선적방법진행회수，백오부선의거부선작업조건우가분위가온부선여상온부선，가온부선수연구유대광석적괄응성강，부선지표은정등우점，단수제공가온설비，선광성본교일반공예고，기응용야수도료한제.본시험채용백오상온부선적방법，재학정료최가적탄산납용량、수파리모수화수파리용량적기출상，탐구료백오정선시험，학정료최가적정선조건，재보증회수솔적동시진일보제고료정광지표.실험실소형폐로시험통과일조이소오정（기중포괄일차공백정선）적부선공예류정，재원광품위부위0.22%적정황하，획득료WO3품위위69.84%、회수솔위70.76%적백오정광.
A low-grade skarn-type scheelite in Southern Jiangxi belongs to the refractory ore for the complex composition and fine dissemination size. Flotation, including heating flotation and room temperature flotation, is often applied for scheelite processing for its favorable flotability. Heating flotation has advantages of good ore adaptability, favorable flotation indexes, and stable characteristics. However, its cost is relative higher for heating requirement. Thus its appliction is restricted. Scheelite processing experiments have been performed based on determining the optimal sodium dosage, water glass dosage and modulus by applying scheelite flotation at room temperature. The concentrate indexes have been improved while maintaining recovery rate. When the ore grade is only 0.22 %, through a roughing, two scavengings and five finishings (including a blank selection) of flotation process, the concentrate grate of WO 3 is 69.84 % and the recovery rate is 70.76 % in closed circuit test .