Process for fractional distillation under vacuum

Details Process for fractional distillation under vacuum Process for fractional distillation under vacuum

1987-08-31

1989-09-05

Bascomb, Wilbur

Distillation: processes, separatory

Vaporization zone under positive pressure or vacuum

203 89, 203 98, 203 72, 159 131, 159 49, 202177, 2021852, 202205, 202236, B01D 310, B01D 314

Patent

active

048635707

ABSTRACT:
Process for the fractional distillation of a liquid under vacuum comprising preheating a liquid to be distilled, forming under vacuum the preheated liquid into a first series of thin sheets of falling liquid to be distilled, and a cooling liquid into a second series of thin sheets of falling cooling liquid, the thin sheets of the first series being alternately arranged with the thin sheets of the second series, in close proximity to one another. Part of the liquid to be distilled is vaporized and passed to the thin sheets of cooling liquid to form liquid distillate and separately recovering the liquid distillate with the cooling liquid and the non-vaporized part of the liquid.

REFERENCES:
patent: 2447746 (1948-08-01), Ferris et al.
patent: 2472578 (1949-06-01), Ferris et al.
patent: 2514943 (1950-07-01), Ferris et al.
patent: 2514944 (1950-07-01), Ferris et al.
patent: 3444049 (1969-05-01), Starmer et al.
patent: 3782703 (1974-01-01), Kolar
patent: 4613410 (1986-09-01), Rivers

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