The lop nur salt lake is the largest brine deposit with in China till now. In the salt lake brine, the magnesium chloride and magnesium sulfate resource is more than eleven billion tons. Excet for the tremendous waste of magnesium resource from magnesium chloride’s accumulation year by year, the more seriously is to break the production balancing of potash fertilizer. Therefore, it need to carry out the utilization study of lop nur salt lake’s old brine magnesium resource.
After a serious of experimental studies of choosing precipitator, coprecipitation mode test, sediment technological conditions and recovery processing precipitator, it puts forward to produce magnesium oxide through the method of precursor calcined. Therefore, it can produce the magnesium oxide with content greater than 98%. Its granularity can achieve the nano grade, and various indexes can achieve superior product demands. The high pure magnesium oxide can be widely used in the fields of electron, electric appliance, optics, instrument, metallurgy, national defense and aerospace. It has higher added value of products.
The application of this technology improves the efficiency of integration of port resource of lop nur salt lake to a great extent. It can help the sustainable development of this lake.