direct esterification process of free fatty acids via sulfuric acid and sodium sulfate or potassium sulfate dehydrators for the production of high purity biodiesel

摘要

SULFIC ACID-FREE FATTY ACID DIRECT STERIFICATION PROCEDURE AND DEHYDRATANTS SODIUM SULPHATE OR POTASSIUM SULPHATE FOR PRODUCTION OF HIGH PURITY BIODIESEL PRODUCTION, PATTERN OF INVENTION discontinuous in open or closed reactor; for this purpose the application of sulfuric acid (H ~ 2 ~ SO ~ 4 ~) plus sodium sulfate (Na ~ 2 ~ SO ~ 4 ~) or sodium bisulfate (HNaSO ~ 4 ~) plus sodium sulfate or sulfuric acid plus potassium sulfate (K ~ 2 ~ SO ~ 4 ~) or potassium bisulfate (HKSO ~ 4 ~) plus potassium sulfate in esterifying alcoholic medium.