浮选—焙烧磁选工艺回收豫西某金尾矿中的钨  

Recovery of Tungsten from a Gold Tailings in Western Henan Province by Flotation-Roasting Magnetic Separation Process

作　　者：乔小虎 吕良[2,3] 岳铁兵 李文军[2,3] QIAO Xiaohu;LYU Liang;YUE Tiebing;LI Wenjun(China National Gold Group Songxian Jinniu Co., Ltd, Luoyang 471499, China;Zhengzhou Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences, Zhengzhou 450006, China;Key Laboratory of Polymetallic Ores Evaluation and Comprehensive Utilization, Ministry of Land and Resources, Zhengzhou 450006, China)

机构地区：[1]中国黄金集团嵩县金牛有限责任公司,河南洛阳471499 [2]中国地质科学院郑州矿产综合利用研究所,河南郑州450006 [3]自然资源部多金属矿评价与综合利用重点实验室,河南郑州450006

出　　处：《矿产保护与利用》2019年第4期88-92,共5页Conservation and Utilization of Mineral Resources

摘　　要：针对豫西某金尾矿中钨初步富集后品位难以提高的问题,从工艺矿物学角度出发,查明了影响钨提纯的主要原因,并据此开展了详细的钨精选试验研究。结果表明:(1)钨粗精矿中主要矿物为白钨矿、重晶石、碳酸盐,其可浮性相近,同时含有细粒嵌布的黄铁矿等,使得钨精矿品位较低,杂质硫元素含量高;(2)根据矿石性质,工艺采用“彼得洛夫法”加温精选除去碳酸盐矿物,调浆至酸性条件下浮选除去重晶石矿物,焙烧磁选工艺除去细粒嵌布黄铁矿,最终获得了白钨精矿WO3品位69.53%、回收率86.27%的选别指标。试验结果为该地区同类型尾矿资源综合利用提供了依据。In view of the difficulty in improving the grade of tungsten after preliminary enrichment in a gold tailings in Western Henan Province, the main factors affecting tungsten purification were identified from the point of process mineralogy, and a detailed experimental study on tungsten cleaning test was carried out accordingly. The results showed that the main minerals in tungsten concentrate were scheelite, barite and carbonate, which had similar floatability. Duo to the contained fine-grained pyrite, tungsten concentrate had low grade and high content of impurity sulfur. According to the nature of the ore, the tungsten concentrate WO 3 grade of 69.53% and the recovery of 86.27% was finally obtained under the process of fine-grained pyrite removed by calcined magnetic separation, the barite minerals removed by flotation under acidic conditions and the carbonate minerals removed by the heating cleaning test with the method of “Petrov method”. It provided a basis for the comprehensive utilization of the same type of tailings resources in this area.

关 键 词：白钨矿 方解石 重晶石 磷灰石 浮选 焙烧 磁选 尾矿 

分 类 号：TD926.42[矿业工程—选矿]