 
                        SYNTHESIS AND APPLICATION OF POTASSIUM FLUORIDE/EGGSHELL-IRON (II, III) OXIDE CATALYST FOR SINGLE STAGE TRANSESTERIFICATION OF NEEM OIL
Single stage alkali-catalyzed transesterification of vegetable oils having free fatty acid (FFA) content above 0.5% promotes saponification which lowers the biodiesel yield by deactivating the catalyst. A strong solid base …