在油酸钠分散体系中用平炉尘制备超细Fe_3O_4  

FINE Fe_3O_4 BEING PREPARED BY OPEN-HEATH DUST IN THE DISPERSE SYSTEM OF SODIUM OLEATE

作　　者：徐爱菊[1] 刘世昌[1] 刘莲云[2] 

机构地区：[1]内蒙古师范大学化学与环境科学学院,内蒙古呼和浩特010022 [2]北京交通大学理学院,北京100044

出　　处：《内蒙古师范大学学报（自然科学汉文版）》2004年第3期288-290,共3页Journal of Inner Mongolia Normal University(Natural Science Edition)

基　　金：内蒙古自然科学基金资助项目(20020802120);内蒙古师范大学青年重点科学基金资助项目(QNZ00101)

摘　　要：包头钢铁公司的平炉尘含铁量高,粒径微细,以γ-Fe2O3为主,经过提纯分级可以作为生产超细磁性材料的原料.研究了平炉尘在油酸钠分散条件下制备超细Fe3O4.结果表明,加入表面活性剂可以降低超微粒子的表面能,减少其团聚倾向,得到粒径更细且均匀的超细Fe3O4粉末.The Open-heath dust of Baotou Iron and steel Company is fine in particle size, its iron content is high, mainly exits in γ-Fe_2O_3 type. After purification it can be raw material for manufacturing magnetic material.To prepare Fe_3O_4 with super-fine particle by Open-heath dust in the exist of surface active agent was studied.The results show that the surface active agent can reduce the surface energy and the reunite tendency,thus the Fe_3O_4 with smaller particle size is obtained.

关 键 词：FE3O4 平炉尘 油酸钠 表面活性剂 超细铁酸盐磁性粉末 转化率 

分 类 号：TB383[一般工业技术—材料科学与工程] TF73[冶金工程—钢铁冶金]