酸浸取法回收硫酸烧渣中三氧化二铁的应用研究  

Application research on acid leaching of Fe_2O_3 in pyrite cinder

作　　者：崔艳宏[1] 陈纪文[1] 王伟[1] 

机构地区：[1]银川能源学院,宁夏银川750105

出　　处：《现代化工》2015年第12期60-61,63,共3页Modern Chemical Industry

基　　金：宁夏自然科学基金(NZ15284);宁夏高校科研专项基金资助项目(2013230);银川能源学院科研基金资助项目(2012-KY-Z-05)

摘　　要：利用浓酸和助溶剂直接溶解硫酸烧渣,然后通过控制温度、酸浓度浸取硫酸烧渣中的Fe_2O_3,并通过XRD表征Fe_2O_3的晶型变化。结果表明,用浓硝酸浸取硫酸烧渣的效果要好些,浓硝酸的浓度变化对Fe_2O_3的晶型变化影响不明显,但是温度的变化对Fe_2O_3的晶型影响较大。Fe2O3 is directly dissolved from pyrite slag by mixing concentrated nitric acid and aid leaching agent. The effects of the leaching temperature and the acid concentration on the crystal structures of Fe2O3 are studied by XRD. The results show that nitric acid can achieve better leaching effect and has slight influence on the change of crystal structure. By eontrast, the leaching temperature has a much greater influence.

关 键 词：硫酸烧渣 酸浸 FE2O3 

分 类 号：TQ111.19[化学工程—无机化工]