Process for separating an acid from a gaseous mixture

Details Process for separating an acid from a gaseous mixture Process for separating an acid from a gaseous mixture

1975-09-29

1977-12-06

Thomas, Earl C.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Carbon dioxide or hydrogen sulfide component

423223, 423226, 423229, 423232, B01D 5334

Patent

active

040617149

ABSTRACT:
A process for separating acid gases from gaseous mixtures by absorption in alkaline solutions such as potassium carbonate solution wherin corrosion caused by the absorbing solution is reduced by inclusion therein of an aromatic compound. The aromatic compound has at least one nitro group and at least one hydroxyl group substituted in the same benzene nucleus. The invention is particularly applicable when the absorbent is a potassium carbonate solution activated by arsenic ions.

REFERENCES:
patent: 1719726 (1929-07-01), Gollman
patent: 3099535 (1963-07-01), Maezawa et al.

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