Analysis and Research on Acid Oil's Esterified Deacidification Based on Chemometrics

This article mainly researched esterified deacidification of biodiesel raw materials waste oil, with chemometrics method.It also analyzed and researched esterified deacidification of methanol, glycerin ,and their mixture under the condition of sulfuric acid, sodium hydrogen sulfate, titanium sulfate as catalyst through a large number of experiments.the corresponding dropping acid curve was mapped and compared.The results showed that sulfuric acid catalytic effect is better, then is the titanium sulfate.Through experiments, this article explored and summarized secondary esterification process of sulfuric acid, sodium hydrogen sulfate, titanium sulfate, three kinds of catalyst catalyzing methanol respectively.