Production methods of magnesium sulfate: 

 The main production method of magnesium sulfate including: Sulfuric acid process;Salt lake bittern process;Bittern drying process;High - temperature salt dissolved process;Shock transformation process; Carbonation process;Sulfur dioxide catalytic process;By-product process.

 Now in China, the main production method of magnesium sulfate is sulfuric acid process and bittern process .This two methods covered more than 90% of the country's total output.