PROCESS FOR THE PRODUCTION AND PURIFICATION OF PROPYLENE GLYCOL

摘要

THE PRESENT INVENTION RELATES TO A PROCESS FOR PRODUCING AN ODORLESS AND COLORLESS INDUSTRIAL GRADE PROPYLENE GLYCOL (10) FROM GLYCEROL OBTAINED DURING THE MANUFACTURING OF BIODIESEL. THE PROCESS INCLUDES HYDROGENATING THE GLYCEROL TO FORM A HYDROGENATED PRODUCT, DISTILLING THE HYDROGENATED PRODUCT TO FORM A GLYCOL PRODUCT (8), AND CONTACTING THE GLYCOL PRODUCT (8) WITH A TREATMENT BED (9). THE PROPYLENE GLYCOL MAY BE USED IN VARIOUS INDUSTRIAL AND CONSUMER APPLICATIONS AND PRODUCTS SUCH AS PERSONAL CARE PRODUCTS. (FIG. 1)