Przemysl Chemiczny, Vol.89, No.4, 564-566, 2010
The production of chloride-free potassium salt with the conversion of potassium chloride into potassium bisulfate in a membrane reactor
KCl was converted to KHSO(4) in reaction with H(2)SO(4) in a membrane distn. reactor at 60-70 degrees C. The Cl-free product was pptd. with MeOH from an aq. soln.