MANUFACTURING METHOD OF BIO-DIESEL FUEL

摘要

PURPOSE: A method for manufacturing biodiesel fuel is provided to reduce manufacturing costs of the biodiesel by recycling oxidized slag which is generated from a process of manufacturing an electric furnace and to prevent the generation of alkaline waste water without after-treatment. CONSTITUTION: A method for manufacturing biodiesel fuel includes a step of reacting triglyceride with methanol through transesterification by using oxidized slag of an electric furnace as a solid catalyst. The oxidized slag is thermally treated at 600-1000°C for 12-24 hours. The transesterification or esterification is performed for 6-9 hours. The oxidized slag is included in an amount of 50-150g per 100 mL of the triglyceride.