Process for making xylitol

摘要

A method for recovering xylitol from pentosan-, preferably xylan-containing raw materials including the steps of hydrolyzing the raw material, purifying the hydrolysate by ion exclusion and color removal, and then subjecting the purified solution to chromatographic fractionation to provide a solution containing a high level of xylose. The xylose solution is hydrogenated and a xylitol-rich solution is recovered by chromatographic fractionation using ion exchange resins.