Przemysl Chemiczny, Vol.79, No.3, 80-83, 2000
Potassium chloride in potassium sulfate synthesis processes. Part 2. Potassium sulfate production from waste sulfates.
Some technological solutions of potassium sulfate fertilizer production from potassium chloride and sulfate by-products from various processes were discussed. Attention has been paid to the necessity of waste sulfates disposal and the difficulties in completion of suggested technological solution, that may cause an increase in the chloride-free potassium fertilizer production costs.