超声振荡条件下赤泥盐酸介质浸提钪的研究  

Leaching scandium from red mud by hydrochloric acid under ultrasonic oscillation

作　　者：王翠珍[1] 周广柱[1] 宋芳[1] 冯宇[1] 

机构地区：[1]山东科技大学化学与环境工程学院,山东青岛266590

出　　处：《无机盐工业》2013年第5期44-46,48,共4页Inorganic Chemicals Industry

摘　　要：研究了以盐酸为介质从赤泥中浸出提取钪的工艺,对比考察了不同条件下钪的溶出效果。结果表明,赤泥中钪的溶出率随着盐酸浓度、液固比、温度、反应时间的增大而增大。超声波振荡条件下反应效率高于普通恒温水浴振荡。盐酸浓度为6 mol/L、液固体积质量比为5∶1(mL/g)时,恒温水浴振荡条件下需要反应时间为1.5 h,反应温度为70℃,钪的溶出率为85.2%;而超声波振荡条件下反应时间仅需10 min,反应温度为60℃,钪的溶出率可达93%以上。Leaching scandium from red mud by hydrochloric acid was studied and the leaching effect of scandium under dif- ferent conditions was compared.The results showed that, the leaching rate of scandium increased with the increasing of con- centration of HCI, liquid to solid ratio, reaction temperature, and time.Ultrasonic oscillation was superior to common thermo- static bath oscillation.When the concentration of HC1 was 6 mol/L,liquid to solid ratio （mL/g）was 5：1 ,reaction time was 1.5 h, and reaction temperature was 70℃,the leaching rate of scandium was 85.2% under condition of common thermostatic bath oscillation.While the leaching rate of scandium was up to 93% by means of ultrasonic oscillation, and the reaction time was only 10 min and reaction temperature was 60 ℃.

关 键 词：赤泥 超声波振荡 酸浸 钪 

分 类 号：TQ133.21[化学工程—无机化工]