Title:
PRODUCTION OF TRIOXANE
Document Type and Number:
Japanese Patent JP3297520
Kind Code:
B2
Abstract:
PURPOSE: To provide a method capable of producing trioxane from formalin by a simplified process with a reduced energy.
CONSTITUTION: This production method for trioxane comprises heating formalin in the presence of an acid catalyst, extracting formed trioxane with a slightly water-soluble organic solvent, supplying the trioxane-containing organic solvent to a vapor-liquid contact part A, taking out trioxane from the bottom of the vapor-liquid contact part, then introducing the vapor of the organic solvent to another vapor-liquid contact part B, bringing the vapor of the organic solvent into contact with formalin in a vapor-liquid state and taking out water and unreacted formaldehyde from the top of the vapor-liquid contact part B to the outside of the system.
More Like This:
| WO/1998/055433 | METHOD FOR PRODUCING FORMALDEHYDE FROM METHANOL IN A NON-OXIDATING MANNER |
| JPH11207187 | CATALYST FOR SYNTHESIS OF TRIOXANE |
| JPH01275501 | TRIOXANE COMPOSITION |
Inventors:
Junzo Masamoto
Hirohisa Morishita
Hirohisa Morishita
Application Number:
JP33030793A
Publication Date:
July 02, 2002
Filing Date:
December 27, 1993
Export Citation:
Assignee:
ASAHI KASEI KABUSHIKI KAISHA
International Classes:
C07D323/06; C07B61/00; (IPC1-7): C07D323/06
Domestic Patent References:
| JP57200383A |
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