Plural stage recovery of trioxane in a process having a molecula

Details Plural stage recovery of trioxane in a process having a molecula Plural stage recovery of trioxane in a process having a molecula

1976-04-19

1977-08-23

Lutter, Frank W.

Distillation: processes, separatory

With disparate physical separation

Utilizing liquid-liquid extracting of distillation product

203 77, 203 7, 203 72, 203 80, 203 89, 203 91, 260340, B01D 312

Patent

active

040438732

ABSTRACT:
Process for the separation of trioxane from aqueous solutions containing it together with formaldehyde, which comprises subjecting the said solutions to evaporation at temperatures of 100.degree. C or lower, at pressures lower than atmospheric, and with residence times of less than 1 minute under the evaporation conditions, with vaporization of a quantity of from about 5 to about 15% by weight of the solution introduced, and recovering the trioxane from the products evaporated in this way.

REFERENCES:
patent: 3395157 (1968-07-01), Dankert et al.

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