含钨原料碱浸过程中添加氧化铝对浸出液质量的影响  

The Effect of Adding Aluminium Oxide During Alka- line-leaching of Tungsten-bearing Raw Materials on the Quality of Leaching Liquor

作　　者：黄蔚庄[1] 张启修[1] 

机构地区：[1]中南工业大学,长沙410083

出　　处：《稀有金属与硬质合金》1993年第4期1-6,共6页Rare Metals and Cemented Carbides

摘　　要：针对国内钨冶炼厂用苛性钠浸出含钨原料时,添加氧化铝抑制杂质有不同效果的情况,研究不同温度下煅烧氢氧化铝所得到的产物作添加剂的效果。采用X光衍射、电子显微镜、热重分析、粒度分析等手段考察了不同氧化铝的结构与性质,并从这一角度讨论了氧化铝对砷与硅的抑制作用。Additive aluminium oxide can inhibit impurities during alkaline leaching of tungsten-bearing raw materials. The inhibiting effects of products obtained during calcining aluminium hydroxide at different temperature as additives are studied. Structure and characters of different aluminium oxide are inverstigated by X-ray diffraction, electron microscope, thermal gravity analysis, size analysis. The Suppression of arsenic and silicon with aluminium oxide is discussed.

关 键 词：钨原料 碱浸 助剂 

分 类 号：TF841.101[冶金工程—有色金属冶金]