(NH_4)_2SO_4浸取轻烧粉的控制过程  

Study on Controlling Process of (NH_4)_2SO_4 Leaching Light-calcined Powder

作　　者：杨翠杰 赵华[1] 徐恺[1] 刘润静[1] 胡永琪[1] 

机构地区：[1]河北科技大学化学与制药工程学院,河北石家庄050000

出　　处：《矿产综合利用》2016年第5期66-68,42,共4页Multipurpose Utilization of Mineral Resources

摘　　要：本论文研究了在密闭、蒸氨环境及不同Mg^(2+)浓度条件下对硫酸铵浸取轻烧粉的过程。结果表明:硫酸铵浸取轻烧粉过程的控制步骤为氨的解吸,强化该过程的措施为提高氨的解吸速率;Mg^(2+)浓度对浸取平衡有明显影响,初始Mg^(2+)浓度越高,轻烧粉浸取率越低。The leaching rate under the closed condition,steamed ammonia environment and different magnesium ion concentrations was investigated by designed tests in this paper.The results show that the controlling steps of ammonium sulfate leaching process are ammoniadesorption.the measures of sprocess intensification are to increase the rate of ammonia desorption.And the magnesium ion concentration has an effect on the equilibrium conversion rate. The higher the initial magnesium ion concentration is,the lower the rate of light burning powder is.

关 键 词：轻烧粉 硫酸铵 浸出率 

分 类 号：TD989[矿业工程—选矿] TQ132.2[化学工程—无机化工]