A method utilizing potassium, chloride solid waste production of potassium sulfate

Disclosed is a method of using potassium, solid waste production of potassium chloride, which is washed with water leaching potassium, chloride solid waste, which makes potassium, chloride ions, and other soluble impurities into the water, containing potassium chloride to form a mixed solution; adding an alkaline substance to the mixed solution to adjust the pH value of the solution, performing a first impurity; soluble carbonate salt is further added to the solution, a second impurity; solid- after addition of ammonium sulfate to the filtrate of the reaction;; isolated alcohol was added, the precipitated potassium sulfate, potassium sulfate precipitation reaction; solid-liquid separation; drying the residue to obtain the product potassium; the filtrate was added to a concentration crystallization apparatus for concentration, crystallization, solid-liquid separation, the filter cake is the potassium chloride products. Can be achieved by the above methods containing potassium chloride mixed solution K2O recovery product is not less than 91%.