TREATMENT PROCESS INVOLVING REMOVAL OF CHLORINE AND HYDROGEN CHLORIDE AND RELEVANT APPARATUS Russian patent published in 2007 - IPC B01D53/68 B01D53/18 

FIELD: gas treatment processes.

SUBSTANCE: invention relates to nonferrous metallurgy, in particular to treating emission gases to remove chlorine and hydrogen chloride in titanium and magnesium production processes. Process comprises feeding gases from below into gas cleaner casing, feeding liquid in the form of lime milk in countercurrent to gas travel, circulation of liquid, and subsequent discharge of the spent solution out of circulation system and withdrawal of gases. Process involves swirling gases and feeding them into plate member of swirler, interaction of liquid with gases to form gas-liquid emulsion, separating gas-liquid emulsion into liquid and gas by way of passing emulsion through a relevant device. Liquid separated in gas-liquid emulsion separator is collected on casing wall wherefrom it flows down into lower part of casing and is then removed therefrom. Separator is periodically receives water to prevent deposits.

EFFECT: prolonged service time of auxiliary equipment and gas collectors, reduced consumption of reagents (calcium hydroxide and oxide) and raw material, and reduced pollution of waste water with alkali reagents.

4 cl, 2 dwg