| dc.description.abstract | The liquid-solid phase transfer catalyzed acetate substitution of 1-chlorobutane to synthesize n-butyl acetate and the liquid-liquid phase transfer catalyzed hydrolysis of n-butyl acetate to synthesizes 1-butanol were studied. The physical and chemical processes were considered to derive the overall production rate equation for n-butyl acetate. The experiment results of the factors including amounts and structures of phase transfer catalyst, kinds and amounts of solvents, stirring speed and reaction temperature can be explained with the rate equation.
A set of suitable conditions for producing n-butyl acetate under atmospheric pressure is 1-chlorobutane 0.5 mole, sodium acetate 0.6 mole, n-butyl acetate 0.24 mole, tetra-n-butyl ammonium bromide 0.0183 mole, initial reaction temperature 90℃ raised 5℃ per hours and final temperature 100℃ and stirring speed 300 rpm. Under this set of condition, 99% yield can be achieved at the reaction time of 9 hours.
Another set of suitable conditions for producing n-butyl acetate using Parr high pressure reactor and without solvent is 1-chlorobutane 0.35 mole, sodium acetate 0.42 mole, tetra-n-butyl ammonium bromide 0.0080 mole, reaction temperature 100℃ and stirring speed 300 rpm. Under this set of condition, 99% yield can be achieved at the reaction time of 8 hours.
As for the liquid-liquid phase transfer catalyzed hydrolysis of n-butyl acetate to synthesizes 1-butanol. A set of suitable conditions is n-butyl acetate 0.3 mole, sodium hydroxide 0.3 mole, water 0.9 mole, tetra-n-butyl ammonium bromide 0.0108 mole, reaction temperature 30℃, stirring speed 500 rpm. Under this set of condition reaction 2.5 hours yield rate achieve 99%.
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