摘要
研究了某三水型高钛铝土矿的溶出特性,考察了温度、时间、石灰添加量及碱质量浓度对氧化铝和二氧化钛溶出率的影响。试验结果表明:温度对氧化铝的溶出影响显著,而石灰添加量对钛的溶出影响较大;较佳的溶出条件为温度240℃,时间40min,石灰添加量4%,苛性碱质量浓度225g/L;最佳条件下,二氧化钛溶出率为9.75%,氧化铝溶出率为88.91%。
The dissolution property of a high titanium bauxite was investigated. The effect of several factors on dissolution of aluminum and titanium dioxide were examined. The experimental results showed that temperature was a significant influencing factor on dissolution of alumina, lime usage influenced significantly the dissolution of titanium. The titanium dioxide dissolution rate was 9.75 % and alumina relative dissoution rate was 88.91% under the best conditions of temperature of 240 ℃, dissolution time of 40 minutes,lime usage of 4% and alkali mass concentration of 225 g/L.
出处
《湿法冶金》
CAS
北大核心
2013年第4期248-251,共4页
Hydrometallurgy of China
关键词
高钛铝土矿
氧化铝
二氧化钛
溶出
high titanium bauxite alumina
titanium dioxide dissolution
