Froth process

Details Froth process Froth process

C - Chemistry, Metallurgy

01

B

23/344

C01B 17/04 (2006.01) B01D 53/14 (2006.01) B01D 53/34 (2006.01) C01B 17/05 (2006.01)

Patent

CA 1173628

A B S T R A C T FROTH PROCESS In the removal of H2S from a gas by contacting with an aqueous reactant solution containing an ion or a chelate of a polyvalent metal with formation of solid sulphur and reduced reactant and regeneration of the reactant with oxygen, the sulphur is recovered by regenerating under conditions to produce a sulphur-containing froth and extracting the froth with an alkanol having 4-15 carbon atoms or an alkenol having 4-20 carbon atoms. The regenerated reactant is contacted with further quantities of H2S-containing gas.

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