Process for removing methanol from aqueous formaldehyde

Details Process for removing methanol from aqueous formaldehyde Process for removing methanol from aqueous formaldehyde

1981-10-09

1983-05-24

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568473, C07C 47058

Patent

active

043851886

ABSTRACT:
Aqueous formaldehyde solutions containing minor amounts of methanol are substantially stripped of methanol by a low energy process at relatively low temperature by means of recycled inert gas in a stripping column comprising at least about 1.5 theoretical transfer units for stripping methanol.

REFERENCES:
patent: 3113972 (1963-12-01), Kodama et al.
patent: 3174911 (1965-03-01), Webb
patent: 4119673 (1978-10-01), Aichs et al.

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