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Study on the Synthesis of n ‐Butyl Acetate by Catalytic Rectification
Author(s) -
Du Y.,
Guo J.
Publication year - 2009
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.200900057
Subject(s) - acetic acid , catalysis , yield (engineering) , chemistry , butyl acetate , stripping (fiber) , n butanol , rectification , butanol , methyl acetate , fraction (chemistry) , nuclear chemistry , zeolite , ethanol , organic chemistry , solvent , materials science , metallurgy , composite material , power (physics) , physics , quantum mechanics
With Hβ zeolite as the catalyst and θ rings as the fillings, the technological process of synthesizing n ‐butyl acetate with acetic acid and n ‐butanol in a Φ 30 mm and 2 m tall catalytic rectifying column was studied. The influence of factors such as catalyst loading height, material feed site, reflux ratio and feed rate on the esterification reaction and the rectification effect was investigated. The study results suggested that the appropriate conditions of n ‐butyl acetate synthesis by catalytic rectification include: The height ratio of the rectifying section, the reaction section and the stripping section is 1:1:1; acetic acid and n ‐butanol are fed in upside and downside of the reaction section, respectively; the reflux ratio is 2.5; the liquid hourly space velocity of n ‐butanol is 0.64 h –1 . Under these conditions, the mass fraction of n ‐butyl acetate in the column bottom is 98.64 %, and the total yield of n ‐butyl acetate is 91.5 %.