Process for the production and purification of diethoxymethane b

Details Process for the production and purification of diethoxymethane b Process for the production and purification of diethoxymethane b

1985-12-02

1986-09-23

Bascomb, Wilbur

Distillation: processes, separatory

Adding material to distilland except water or steam per se

Organic compound

203 68, 203 69, 203 70, 203 81, 568594, B01D 336, C07C 4158

Patent

active

046134115

ABSTRACT:
Diethoxymethane (ethylal), prepared by reacting formaldehyde with ethanol, may be recovered from the product mixture in substantially pure form by first distilling off an azeotrope comprising ethanol and diethoxymethane, adding a selected solvent to the azeotrope which will form an azeotrope with the ethanol, distilling off said latter azeotrope and recovering the substantially pure diethoxymethane.

REFERENCES:
patent: 1850836 (1932-03-01), Guinot
patent: 2421862 (1947-06-01), Arundale et al.
patent: 2535458 (1950-12-01), Robeson
patent: 2617757 (1952-11-01), Michael
patent: 3492356 (1970-01-01), Hall
Zaganiaris, Chem. Ber., 71, p. 2002 (1983).
Shulkin et al., Sbornik Statei Obshchei Khim. 2, 1014 (1953).

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