| 摘要 |
<p>The invention relates to a process and an installation for producing biodiesel fuel. According to the invention, the process consists in heating the raw oils up to the temperature of 38...42A C, admixing an alcoholic catalyst solution, in a ratio of 18...22% as compared with the oil, followed by the trans-esterification reaction at the temperature of 45...50A C, gravimetric separation of raw glycerol, correction of the excess alcohol and technical glycerol, purification of biodiesel fuel by serially treating the same with an aqueous solution of phosphoric acid, aqueous solution of ammonia and a final washing with twice demineralized water, admixture of N-isopropyl-N-phenyl-p-phenylene diamine oxidation preventive agent into the liquid mass and subjecting the final product obtained thereby to cold filtration, at temperatures below 20...25A C.</p> |
