四川某白钨矿加温浮选试验研究  

Experimental study on heating flotation of a scheelite ore in sichuan province

作　　者：李悦 谢贤[1,2,3] 周凌志 吴雨瑶 王翔 李加文 张守逊 LI Yue;XIE Xian;ZHOU Lingzhi;WU Yuyao;WANG Xiang;LI Jiawen;ZHANG Shouxun(Faculty of Land and Resources Engineering,Kunming University of Science and Technology,Kunming 650093,China;State Key Laboratory for Clean Utilization of Complex Nonferrous Metal Resources,Kunming 650093,China;Green Comprehensive Utilization of Metal Mine Tailings Resources National Local Joint Engineering Research Center,Kunming 650093,China)

机构地区：[1]昆明理工大学国土资源工程学院,昆明650093 [2]省部共建复杂有色金属资源清洁利用国家重点实验室,昆明650093 [3]金属矿尾矿资源绿色综合利用国家地方联合工程研究中心,昆明650093

出　　处：《矿冶》2025年第1期66-73,共8页Mining And Metallurgy

基　　金：国家自然科学基金资助项目(52174252)。

摘　　要：四川省某白钨矿含WO_(3)0.50%、Cu 0.17%、S 2.14%,钨全部以独立矿物形式赋存于白钨矿中,可回收的金属矿物主要白钨矿,其次是黄铜矿。采用化学成分分析、扫描电镜—能谱分析等手段分析了矿石的性质、白钨矿及脉石矿物的组成及嵌布特性,分析矿石结构和性质特点,在此基础上采用“硫化矿浮选—白钨常温粗选—白钨加温精选”的原则流程回收白钨矿。重点开展了浮选工艺参数碳酸钠用量、水玻璃用量、捕收剂种类及用量、加温氢氧化钠用量、加温水玻璃用量对钨回收的影响。结果表明,长碳羟酸皂化物的混合物(ZL)捕收剂具有较强的捕收能力和较好的选择性,可提高白钨矿表面的疏水性;采用加温精选的方法能够有效抑制含钙脉石矿物,实现白钨矿与含钙脉石的有效分离。在最佳药剂制度的基础上,开展了“一次粗选、一次扫选、四次精选、精矿扫选(一粗一扫四精一精扫)”的闭路试验,可获得WO_(3)品位60.45%、回收率86.46%的白钨精矿,实现对白钨矿的有效回收。A tungsten ore from Sichuan Province contains WO_(3)0.50%,Cu 0.17%and S 2.14%.Tungsten in the ore is all present in the form of independent minerals in scheelite.Scheelite is the main recovered metal mineral,followed by chalcopyrite.According to the composition and dissemination characteristics of scheelite and gangue minerals in the ore,the principle process of'sulfide ore flotation-scheelite roughing at room temperature-scheelite heating cleaning'was adopted.The experimental study on the conditions of sodium carbonate dosage,water glass dosage,collector type and dosage,heating sodium hydroxide dosage and heating water glass dosage was carried out.The experimental results show that ZL collector can improve the hydrophobicity of scheelite surface,and has strong collecting ability and good selectivity.The method of heating concentration can effectively inhibit the calcium-containing gangue minerals and realize the effective separation of scheelite and calcium-containing gangue.On the basis of the best reagent system,the closed-circuit test of'one roughing,one scavenging,four cleaning and one cleaning'was carried out,and the scheelite concentrate with WO_(3)grade of 60.45%and recovery rate of 86.46%was obtained,which realized the effective recovery of scheelite.

关 键 词：白钨矿 加温浮选 ZL捕收剂 

分 类 号：P579[天文地球—矿物学] TD923[天文地球—地质学] TD913[矿业工程—选矿]