The invention relates to a method for preparing alkali and heat stable
polyols, whereby sugar alcohols are treated with reagents to obtain
stabilised sugar alcohol syrups and the stabilised alcohol syrup is
subjected to a purification step by passing the stabilized sugar alcohol
syrup over at least one ion-exchanger resin, and the stabilized sugar
alcohol syrup being purified by a double passage over a cationic anionic
ion-exchanger configuration (CACA), comprising at least a first weak
acidic cationic ion-exchanger resin and a second strong, medium or weak
basic anionic ion-exchanger resin.
