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Isooctyl palmitate production process – Esterification: A certain amount of palmitic acid and isooctanol are added to the esterification reactor; the mixing and heating valves are opened, while the cooling water for the reflux condenser is also activated； Then open the discharge valves of the catalyst and water carrier metering tanks to allow them to flow slowly into the esterification reactor. As the reaction temperature increases, the water carrier removes the water generated by the reaction; after being cooled in a condenser, it is separated in a water separator and then returned to the acidification tank to carry out its function. The esterification reaction is carried out at a temperature of 120–140°C for 3.5 hours. Neutralization: The material after the reaction is neutralized to neutrality (pH≈7) using a 3% sodium carbonate alkaline solution, and then it proceeds to the next processing step. Washing: The neutralized material is transferred to a washing tank, and water is added for washing ； Allow static stratification and collect the upper organic phase. Repeat this several times until the washing is complete. Dealcoholization and decolorization by vacuum distillation: After multiple washes with water, the upper organic phase is transferred to a vacuum distillation vessel; activated carbon is added, and the stirring and heating valves are turned on simultaneously ； Once it reaches a certain temperature, the unreacted alcohol present in the material is removed. Once the alcohol has been completely removed, decolorization is completed followed by filtration to obtain the qualified product. Using palmitic acid and isooctyl ester as raw materials, the optimal conditions for synthesizing isooctyl palmitate using sulfonic acid as a catalyst are: an alcohol-to-acid molar ratio of 1.5:1.0 ； The amount of catalyst used is 0.15% (by mass) ； Reaction temperature: 140–170℃ ； Time 3.5h ； The recovery rate reached 97.2%.