红土酸浸的最佳条件研究

Study on the Optimum Reaction Parameters of Red Soil Acid-leaching

采用单因素试验安排方法对影响红土酸浸的主要因素（酸浸温度、酸浸时间、硫酸浓度和液固比）进行研究，实验表明酸浸温度、酸浸时间、硫酸浓度和液固比分别为90℃、2h、25％～35％和1～5：1时红土的酸浸率最高。

The key reaction parameters of the red soil acid - leaching, such as acid - leaching temperature, acid - leaching time, sulfuric acid concentration, and liquid to solid ratio were studied. The results showed that the highest yields could be obtained when the above factors were 90 ℃, 2 h, 25 % - 35 %, and 3 ： - 5 ： 1, respectively.