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Synthesis of Trioxane Using Heteropolyacids as Catalyst
Author(s) -
Masamoto Junzo,
Hamanaka Katsuhiko,
Yoshida Kohichi,
Nagahara Hajime,
Kagawa Kenji,
Iwaisako Toshiyuki,
Komaki Hajime
Publication year - 2000
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/1521-3773(20000616)39:12<2102::aid-anie2102>3.0.co;2-e
Subject(s) - trioxane , catalysis , phosphotungstic acid , silicotungstic acid , formaldehyde , chemistry , yield (engineering) , sulfuric acid , trimer , selectivity , acetal , organic chemistry , inorganic chemistry , dimer , materials science , polymerization , polymer , metallurgy
A high formaldehyde feed concentration and a low reaction temperature are among the advantages of using heteropolyacids (phosphotungstic acid and silicotungstic acid) as catalysts in the formation of trioxane; this cyclic trimer of formaldehyde (see scheme) is used in the industrial production of acetal resins. Compared to reactions with a conventional catalyst, like sulfuric acid, trioxane can be produced in higher yield and with higher selectivity.