Process for treating a waste gas

Details Process for treating a waste gas Process for treating a waste gas

1977-07-29

1978-08-22

Thomas, Earl C.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Halogenous component

423242, B01D 5334

Patent

active

041089596

ABSTRACT:
A process for treating a waste gas containing SO.sub.2 and HCl which comprises determining the amount of HCl in said waste gas and supplying at least one magnesium salt selected from the group consisting of MgSO.sub.4, MgSO.sub.3, MgO, MgCO.sub.3 and Mg(HSO.sub.3).sub.2 in an amount corresponding to the amount of HCl additionally supplying CaCO.sub.3 or Ca(OH).sub.2 as an absorbent for SO.sub.2 to a column for treating said waste gas.

REFERENCES:
patent: 3876750 (1975-04-01), Hauser

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