US EPA

5175791 

Journal Article 

Esterification of phthalic anhydride with 1-butanol and 2-ethylhexanol catalyzed by heteropolyacids 

Arabi, M; Amini, MM; Abedini, M; Nemati, A; Alizadeh, M 

2003 

Yes 

Journal of Molecular Catalysis A: Chemical
ISSN: 1381-1169 

ELSEVIER SCIENCE BV 

AMSTERDAM 

200 

1-2 

105-110 

English 

10.1016/s1381-1169(03)00043-8 

WOS:000183168200010 

http://://CCC:000183168200010http://www.elsevier.com
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Esterification of phthalic, anhydride with 2-ethylbexanol and 1-butanol. and ester decomposition of dioctyl phthalate (DOP) in presence of Keggin; H(3)PW(12)O(40), H(4)SiW(12)O(40), H(4)SiMo(12)O(40), Wells-Dawson; H(6)P(2)W(18)O(62), H(6)P(2)W(17)MoO(62) and Preyssler; H(14)[NaP(5)W(29)MoO(110)], H(14)[NaP(5)W(30)O(110)], type heteropolyacids have been investigated. The heteropolyacids with Preyssler and Wells-Dawson structures and their molybdenum substituted derivatives show higher activity in esterification and ester decomposition reactions than Keggin type heteropolyacids. A complete conversion of phthalic anhydride to dioctyl phthalate and dibutyl phthalate are achieved in 2 h in presence of molybdenum substituted Preyssler heteropolyacid. In the decomposition of dioctyl phthalate in the presence of Preyssler heteropolyacid, 2-ethylhexene is formed in quantitative yield. (C) 2003 Elsevier Science B.V. All rights reserved. 

Chemistry; heteropolyacid, solid acid, esterification, phthalic anhydride, 2-ethyl; hexanol, 1-butanol; solid-acid catalysts, liquid-phase, 12-tungstophosphoric acid,; acrylic-acid, butanol, carbon, salts