Process For The Production Of Trioxane From Aqueous Formaldehyde Sources
AssigneeTicona LLC
InventorsMichael Haubs, Jürgen Lingnau, Klaus Kurz
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Abstract
The present invention relates to a process for producing cyclic acetal comprising i) preparing a liquid reaction mixture comprising a) a formaldehyde source, b) an aprotic compound and c) a catalyst; wherein the total amount of protic compounds is less than 40 wt.-%, based on the total weight of the reaction mixture; and ii) converting the formaldehyde source into cyclic acetals.
Claims37
A process for producing a cyclic acetal comprising:
- reacting a formaldehyde source in the presence of a catalyst to produce a cyclic acetal, and wherein the reaction is carried out in a liquid medium comprising a liquid aprotic compound having a boiling point of 120° C. or higher determined at 1 bar, and wherein the amount of the liquid aprotic compound comprises at least 20 wt % of the liquid medium.
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Liquid reaction mixture comprising
- a) a formaldehyde source,
- b) an aprotic compound and
- c) a catalyst;
- wherein the total amount of protic compounds is less than 40 wt.-%, based on the total weight of the reaction mixture.
A process for producing cyclic acetal comprising
- i) preparing a liquid reaction mixture comprising
- a) a formaldehyde source,
- b) an aprotic compound and
- c) a catalyst;
- wherein the total amount of protic compounds is less than 40 wt.-%, based on the total weight of the reaction mixture;
- and
- ii) converting the formaldehyde source into cyclic acetals.
Dependencies are inferred from the claim text.