Process for obtaining trioxane from aqueous solutions by high-pr

Details Process for obtaining trioxane from aqueous solutions by high-pr Process for obtaining trioxane from aqueous solutions by high-pr

1985-06-06

1990-08-07

Bascomb, Wilson

Distillation: processes, separatory

Convective distillation with normally gaseous medium, e.g., air

203 14, 203 17, 203 50, 203 67, 203 70, 549368, B01D 334, B01D 1104, C07D32306

Patent

active

049465619

ABSTRACT:
The invention relates to a process for obtaining trioxane from aqueous solutions by high-pressure extraction using an extracting agent which is in the form either of a gas in the supercritical state or of a liquid gas. An intermediate separation is advantageous, especially in the former case.
The trioxane can be obtained in high concentration and with a saving of energy by the process according to the invention.

REFERENCES:
patent: 2304080 (1942-12-01), Frank
patent: 2347447 (1944-04-01), Walker
patent: 3522278 (1970-07-01), Montaubric et al.
patent: 3969196 (1976-07-01), Zosel
patent: 4349415 (1982-09-01), DeFilippi et al.
patent: 4437938 (1984-03-01), Bhise et al.

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