Abstract: This paper introduces the process characteristics, process principle and influencing factors of the production of sec-butyl acetate from mixed C4, and at the same time, the main technical indexes and product quality indexes of the industrial application of sec-butyl acetate plant are introduced. Using mixed C4 to produce sec-butyl acetate can effectively utilize the rich and cheap mixed C4 raw materials. Compared with the traditional alkyd esterification method, the alkene acetic acid addition method is a new route for the synthesis of sec-butyl acetate. With short process flow, less process equipment, mild reaction conditions, energy saving and environmental protection, high product purity and low processing cost, this process has strong competitive advantages.

Key words: mixed C4, sec-butyl acetate, alkyd esterification, alkene acetic acid addition method, energy saving and environmental protection