This technology develops a novel process for direct esterification of n-butene and acetic acid to synthesize the eco-friendly solvent sec-butyl acetate. Using a new solid acid catalyst, it achieves efficient conversion of low-concentration mixed n-butenes ( ≥ 30%) (conversion rate ≥ 90%, ivity ≥ 99%) under mild conditions (70℃ –80℃ /1.6MPa). It greatly reduces raw material costs and equipment corrosion, with long lifespan and energy consumption metrics hold a comparative advantage in the domestic market, providing a green solution to replace toxic aromatic/ketone solvents.

Technology provider:Dalian Institute of Chemical Physics, Chinese Academy of Sciences