摘要
研究某石煤钒矿的工艺矿物学特性,查明了矿石中钒元素的赋存状态及主要矿物的嵌布特征,并就影响提钒工艺的矿物学因素进行了分析。结果表明,矿石中88.02%的钒呈类质同象分布于硅酸盐矿物中,6.00%分布于褐铁矿中,4.20%以钒钛氧化物形式独立存在,少量钒以钒酸盐形式存在。含钒硅酸盐矿物主要以隐晶质或胶状结构产出,并与微晶石英及炭质紧密胶结在一起,焙烧、高酸浸出(钒浸出率仅64%)难以破坏其结构。提钒工艺的选择应重视选矿富集钒或选矿抛弃耗酸矿物。
The process mineralogy characteristics of vanadium bearing stone coal ore were studied. The oc- currence of vanadium in ore and dissemination characteristics of main minerals were found out. The effects of mineralogy factors on vanadium extraction were analyzed. The results show that 88.02 % of total vana- dium in ore distributes in silicate minerals as isomorphism, 6.00% of vanadium distributes in limonite, 4. 20 ~ of vanadium independently exists as vanadium-titanium oxide ore, and the rest small amount exists as vanadate. Occurring mainly as cryptocrystalline or colloidal texture and cemented closely with microlitic quartz and carbonaceous matter, vanadium-bearing silicate minerals is hard to be broken with blank roast- ing and concentrated acid leaching with a vanadium leaching rate of only 64%. The selection of vanadium extraction process shall be focused on vanadium concentration or discarding of acid-consuming minerals by mineral processing.
出处
《有色金属（冶炼部分）》
CAS
北大核心
2013年第8期32-35,共4页
Nonferrous Metals（Extractive Metallurgy)
关键词
石煤钒矿
工艺矿物学
提钒
富集
vanadium-bearing stone coal ore
process mineralogy
vanadium extraction
concentration
