COMPOSITION AND ITS USE TO CONVERT A GAS CONTAINING HYDROGENSULPHIDE AND SULPHUR DIOXIDE TO SULPHUR

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One describes a desulphurizing composition including/understanding - a solvent has organic boiling point to pressure atmosphériqu E, higher than 200 .degree. C, - a mixture B of at least a salt (S) alkaline or alkaline-earth of an organic monoacide or an organic polyacid whose at least value of the constan you of dissociation (km No) lies between 2, 2 and 8; of at least an agent NT complexed (C); and of water (W), under the following ponderal conditions : S = 0, 1 to 30% C = 0, 001 to 30% W = q.s.p. 100 Application to the waste processing of Claus units.