With the increase of Chinese electrical steel production, the quantity demanded for silicon steel grade magnesium oxide is also in increasing. It has can not meet the needs of the market for the traditional preparation method which regards dolomite as raw material. China has rich brine resource. Therefore, it is becoming more and more important to research how to multipurpose use salt lake resources. The silicon steel magnesium oxide is a kind of coating material to prepare oriented silicon steel. It is mainly used in oriented silicon steel’s surface electroless deposition, and takes a role of separant, insulating film, desulfurization, dephosphorization and others. The above summarizes the methods, technological process, research progress and problems of preparation magnesium oxide. In addition, it gives advice on how to utilize Chinese brine resource.
The silicon steel grade magnesium oxide is a kind of coating material to manufacture oriented silicon steel sheets with high value-added. At the same time, it reacts with the silicon to produce excellent insulating film. The silicon is on the surface of silicon steel. What’s more, it can be used in manufacturing fire-clay crucible, fine ceramics and special polishing agent. In addition, its applications include aerospace industry, electronic industry and other industries. The silicon steel grade magnesium oxide market has tremendous potential. Therefore, it is necessary to strengthen the research of silicon steel grade magnesium oxide’s preparative technique.