Recent Development of Microwave Radiation Application in Metallurgical Processes

The current situation and recent progrss of microwave radiation applied to metallurgical processes are reviewed. The theory of microwave is briefly accounted, with the focus mainly on some unit operations, such as microwave-assisted comminution, leaching, drying/dehydration, reduction of minerals and waste control from minerals mining. Examples of successful applications are given to illustrate the advantages of microwave-assisted operations in mining and process metallurgy. It is concluded that microwave radiation has great potential to improving metallurgical efficiency and achieving high economical benefit, but many problems must be overcome at first. Finally, recommendation for future research and development activities in this field is also suggested.