Method for removing sulfur oxide from stack gas

Details Method for removing sulfur oxide from stack gas Method for removing sulfur oxide from stack gas

1974-03-15

1977-09-06

Vertiz, O. R.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Alkaline earth metal

423242, C01F 100, C01F 540, C01F 1146, C01B 1700

Patent

active

040468569

ABSTRACT:
In a method for removing sulfur oxides in a stack gas by absorbing the sulfur oxides in an absorbent comprising predominantly calcium compounds, thereby converting the sulfur oxides to sulfites, and then oxidizing the sulfites to gypsum, the improvement where the absorbent further contains a magnesium compound such as Mg(OH).sub.2, MgCO.sub.3 or MgSO.sub.4.

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patent: 658327 (1900-09-01), Vis
patent: 2573616 (1951-10-01), Seailles
patent: 3520649 (1970-07-01), Tomany et al.
patent: 3556722 (1971-01-01), Owaki
patent: 3632306 (1972-01-01), Villiers-Fisher et al.
patent: 3687613 (1972-08-01), Richard
patent: 3883639 (1975-05-01), Cronkright et al.
patent: 3919394 (1975-11-01), Selmeczi

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