A METHOD OBTAINING FATTY ACIDS FROM BIODIESEL-DERIVED WASTE GLYCEROL

摘要

PURPOSE: A method obtaining fatty acids from biodiesel-derived waste glycerol is provided to be environmentally friendly and manufacture a skin cleanser and a surfactant. CONSTITUTION: A method obtaining fatty acids from biodiesel-derived waste glycerol comprises a step of adding acid into a solution mixture which includes glycerol and fatty acid salt and converting aliphatic acid salt to aliphatic acid; a step of adding organic solvent into the solution mixture and dissolving fatty acid to the organic solvent; a step of dissolving the organic solvent into the mixture solution; and a step of distributing the colorant and impurities from the aliphatic acid. The acid is selected from chloride acid, sulfuric acid, and nitric acid. [Reference numerals] (AA) Start; (BB) End; (S1) Converting fatty acid salt into fatty acid; (S2) Adding an organic solvent(Dissolving the fatty acid); (S3) Separating the organic solvent with dissolved fatty acid; (S4) Removing colorant and impurities;