Unrefined vegetable oils and fats contain free fatty acids and they ought to be minimized for use in food and non-food applications. Traditional deacidification of vegetable oils and fats adopts alkali neutralization for the removal of free fatty acids. Here, a simple method for the removal of free fatty acids from jatropha oil by reactive extraction using monoethanolamine in methanol is proposed. Reactive extraction kinetic studies with initial free fatty acids concentration (0.1–0.5 kmol/m³) using monoethanolamine (0.4141–1.6568 kmol/m³) in methanol at 30 °C was performed and investigated. Parameters like distribution coefficient, equilibrium complexation constant for free fatty acids extraction were obtained to arrive at equilibrium and kinetic conclusions. Most importantly, the criteria for reaction regime was established through Hatta number. The study revealed that reactive extraction of free fatty acids using monoethanolamine in methanol falls under reaction regime 2. The study demonstrated that reactive extraction was highly successful in reduction of the free fatty acids in jatropha oil. Further biodiesel was prepared using the deacidified oil and the specifications obtained were well within the standard ASTM limits.

未精制的植物油和脂肪含有游离脂肪酸，在食品和非食品应用中应尽量减少使用。传统的植物油脂脱酸采用碱中和去除游离脂肪酸。在此，提出了一种使用甲醇中的单乙醇胺通过反应萃取去除麻风树油中游离脂肪酸的简单方法。使用单乙醇胺 (0.4141–1.6568 kmol/m ³ )的初始游离脂肪酸浓度 (0.1–0.5 kmol/m ^{3 ) 的反应萃取动力学研究}) 在 30 °C 的甲醇中进行并研究。获得游离脂肪酸提取的分配系数、平衡络合常数等参数，以得出平衡和动力学结论。最重要的是，反应体系的标准是通过 Hatta 数建立的。研究表明，使用甲醇中的单乙醇胺反应提取游离脂肪酸属于反应方案 2。研究表明，反应提取在减少麻风树油中的游离脂肪酸方面非常成功。使用脱酸油制备进一步的生物柴油，获得的规格完全在标准 ASTM 限制范围内。