黑钨渣富集工艺的研究  

作　　者：王钦建[1] 

机构地区：[1]福建省废物管理中心,福建福州350003

出　　处：《化学工程与装备》2009年第2期108-110,共3页Chemical Engineering & Equipment

摘　　要：通过X-射线衍射检测黑钨渣中所含铁、钙、锰和锡的赋存是以Ca0.15Fe2.85O4、MnFe2O4、Fe3O4、SnO2以及脉石。设计专门的富集工艺除去其中的钙、锰以及部分的铁,从而达到富集的目的。研究表明硫酸浓度为0.5M、固液比为1:80、反应温度为70℃、反应时间为1小时,处理后渣样中钨含量从1.5%上升至8.2%,铌和钽的含量提高1倍。the main phase of black tungsten residue are Ca0.15Fe2.85O4,MnFe2O4, Fe3O4, SnO2 and gangue by X-ray diffraction. A concentration technics is set up to remove the most of the calcium and manganese composition, and also partial iron composition. The results indicate that the optimal treatment condition are following： the concentration of vitriol is 0.5mol/L, the ratio of solid and liquid reaches 80, the reaction temperature is 70℃, and the reaction time is 1 hour. After treating, the content of tungsten goes up from i.5% to 8.2%, and the content of niobium and tantalum are also goes up.

关 键 词：黑钨渣 富集 苏打烧结法 X一射线荧光分析 

分 类 号：TF841.1[冶金工程—有色金属冶金]