摘要
对攀钢钒渣进行钙化焙烧试验,通过钒转浸率考察了钒渣粒度、钙钒比、焙烧温度、焙烧时间对焙烧效果的影响,并对焙烧过程进行了热分析。结果表明:在钒渣粒度为-140目、钙钒比为0.62、焙烧温度为900℃、焙烧时间为150 min时,钙化焙烧效果较好,焙烧熟料的钒浸出率可达91%以上;钒渣钙化焙烧是钒渣首先氧化分解,并在680℃与碳酸钙直接作用生成钙的钒酸盐的过程。
Carried out the calcified roasting test to vanadium slag from pangang,investigated the influencing factors to roasting effect including the vanadium slag granularity,ratio of calcium to vanadium,roasting temperature,roasting time,and thermal analysis to the roasting process.The results show that： under the conditions of the granularity of vanadium slag at-140 mesh,the ratio of calcium to vanadium at 0.62,roasting temperature at 900 ℃,roasting for 150 min,the effect of calcified roasting is better,and the leaching rate of vanadium can reach to above 91%;the process of calcified roasting is oxygenolysis of vanadium slag first,and then direction action with calcium carbonate at 680 ℃ to produce Ca-containing vanadates.
出处
《金属矿山》
CAS
北大核心
2012年第4期91-94,共4页
Metal Mine
关键词
钒渣
钙化焙烧
影响因素
转浸率
Vanadium slag
Calcified roasting
Influencing factors
Immersion ratio
作者简介
尹丹凤（1984～），女，工程师，硕士，617000四川省攀枝花市炳草岗桃源街90号。
