PROCESS FOR THE CONTINUOUS PREPARATION OF TRIOXANE

PROCESS FOR THE CONTINUOUS PREPARATION OF TRIOXANE

1. A process for the continuous manufacture of trioxane, optionally together with cyclic formals, from aqueous formaldehyde solutions containing optionally at least one diol and/or at least one epoxide, in the presence of acidic catalysts, in a circulation reactor with evaporator, at a residence tim...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MUCK, KARL-FRIEDRICH, SEXTRO, GUNTER, BURG, KARLHEINZ
Format: Patent
Sprache:eng ; ger
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:1. A process for the continuous manufacture of trioxane, optionally together with cyclic formals, from aqueous formaldehyde solutions containing optionally at least one diol and/or at least one epoxide, in the presence of acidic catalysts, in a circulation reactor with evaporator, at a residence time in the range of from 2 to 240 minutes, wherein the amount of vapor leaving the system is from 0.1 to 4% relative to the total amount of circulating product.