Process for producing a cyclic acetal in a heterogeneous reaction system

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United States of America Patent

PATENT NO 9499512
APP PUB NO 20140350216A1
SERIAL NO

14359594

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Abstract

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A process for producing a cyclic acetal is disclosed. According to the process, a formaldehyde source is combined with an aprotic compound and contacted with a heterogeneous catalyst which causes the formaldehyde source to convert into a cyclic acetal such as trioxane. The catalyst, for instance, may comprise a solid catalyst such as an ion exchange resin. In one embodiment, the process is used for converting anhydrous formaldehyde gas to trioxane. The anhydrous formaldehyde gas may be produced form an aqueous formaldehyde solution by an extractive distillation.

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Patent Owner(s)

Patent OwnerAddress
CELANESE SALES GERMANY GMBH65843 SULZBACH

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Feord, Damian Strasbourg, FR 9 58
Haubs, Michael Bad Kreuznach, DE 68 482
Kurz, Klaus Kelsterbach, DE 53 404
Lingnau, Jurgen Mainz-Laubenheim, DE 18 97
Sianturi, Joni Sulzbach, DE 2 1

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