制取高纯八水氢氧化锶晶体颗粒的新方法  

New process for preparing high purity strontium hydroxide octahydrate crystal particles

作　　者：王运朝[1] 孙士坤[1] 冯磊[1] 陈英军[1] 

机构地区：[1]河北辛集化工集团,河北辛集052360

出　　处：《无机盐工业》2012年第10期39-40,共2页Inorganic Chemicals Industry

摘　　要：将天青石经过煅烧制取的粗锶用热水浸取,加入工业氢氧化钠反应后冷却结晶制得粗品八水氢氧化锶。粗品八水氢氧化锶再经过脱硫、除杂、重结晶制得高纯八水氢氧化锶晶体颗粒。实验结果表明,此方法成本低、工艺流程短,选择合适的工艺控制条件,可使纯度达到99.0%以上,适合工业化生产。Coarse strontium was prepared at first by calcining celestite.After leaching by hot water,industrial NaOH wasadded,and then coarse strontium hydroxide octahydrate was prepared through cooling crystallization, After desulfurization, purification, and recrystallization, the high purity strontium hydroxide octahydrate crystal particles were obtained.Experiment results showed that, this method had low cost, short flow, and the product purity could reach over 99.0% under proper conditions. Therefore, it is suitable for industrial production.

关 键 词：粗锶 氢氧化锶 重结晶 

分 类 号：TQ132.33[化学工程—无机化工]