Method for producing pure trioxane

A process for preparing trioxane by trimerization of formaldehyde in aqueous acidic solution and subsequently removing trioxane from a mixture substantially comprising trioxane, water and formaldehyde (crude trioxane product), which comprises a) distilling the crude trioxane product from the trimeri...

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Main Authors FRIESE THORSTEN, RAULS MATTHIAS, HILDENBRAND PETER, ZEINER HARTMUT, EGBERS GITTA, HECK LUDWIG E, FRIESE KATRIN, FREYHOF REINHARD, ARMBRUSTER HARALD, STROFER ECKHARD
Format Patent
LanguageEnglish
Published 11.08.2005
Edition7
Subjects
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Summary:A process for preparing trioxane by trimerization of formaldehyde in aqueous acidic solution and subsequently removing trioxane from a mixture substantially comprising trioxane, water and formaldehyde (crude trioxane product), which comprises a) distilling the crude trioxane product from the trimerization, b) crystallizing the trioxane out and c) removing it from the mother liquor and d) subsequently melting it and e) distilling off further by-products.
Bibliography:Application Number: US20040514490