Purification of formaldehyde by separation

Details Purification of formaldehyde by separation Purification of formaldehyde by separation

1977-01-17

1979-01-30

Hart, Charles N.

Gas separation

Means within gas stream for conducting concentrate to collector

55 68, 55 75, B01D 5304, B01D 5328

Patent

active

041370546

ABSTRACT:
A mixture containing formaldehyde and water is separated effectively by contacting with adsorbents of specific type A zeolites containing exchanged cations of the elements from Group IA (4) to (6) or Group IIA (6) or mixture thereof of the Periodic Table of Elements.

REFERENCES:
patent: 2882243 (1959-04-01), Milton
patent: 2882244 (1959-04-01), Milton
patent: 3118747 (1964-01-01), Codignola et al.
patent: 3176444 (1965-04-01), Kiyonaga
patent: 3186144 (1965-06-01), Dow
patent: 3636679 (1972-01-01), Batta
patent: 3658696 (1972-04-01), Shively et al.
patent: 4025321 (1977-05-01), Anderson et al.

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