Using strong acid-cation exchange resin to reduce potassium level in molasses vinasses

► K+ was extracted from molasses vinasses and desorbed by H2SO4 solution from the resin. ► In order to prevent crystals formation in the columns, stepwise desorbed was used. ► Recycle about 49 wt.% H+, after extracting K2SO4 crystals from the eluent.