用硫铁矿烧渣制备的硫酸亚铁研制软磁用α-Fe_2O_3

DEVELOPMENT OF α-Fe_2O_3 FOR SOFT MAGNET THROUGH FERROUS SULFATE PREPARED BY PYRITE RESIDUE

介绍了利用硫铁矿烧渣制备的硫酸亚铁为原料制备高纯软磁用α Fe2 O3的基本原理、制备工艺 ,以及对工艺过程的影响因素进行了探讨 ,得到了制备高纯软磁用α Fe2 O3的适合条件 ,并对高纯软磁用α Fe2

This paper introduces the basic principles and production process of the preparing α-Fe_2O_3 for a high pure soft magnet through ferrous sulfate made from pyrite residue;and also discusses the influencing factors of the technological process,by which suitable conditions of making α-Fe_2O_3 for the high pure soft magnet are obtained.Finally an economic estimation of its industrialized production is also done.