Oxidation-reduction reagents for a wet desulfurization...

C - Chemistry – Metallurgy – 07 – C

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260/236.31

C07C 143/38 (1980.01)

Patent

CA 1135259

SPECIFICATION Title of the Invention: Oxidation-reduction Reagents for a Wet Desulfurization Process and a Process for Preparing Same Abstract of the Disclosure: An oxidation-reduction reagent for a wet desulfurization process, which comprises (a) one or more compounds selected from the group consisting of salts of substituted anthraquinonesulfonic acids of the general formulas: Image (I) and Image (II) wherein M stands for a sodium atom, a potassium atom or an ammonium group, and n is an integer of 1 or 2, or (b) a mixture of a salt of anthraquinone-2,7-disulfonic acid and one or more compounds shown by the general formula (I) and/or (II), as well as a process for preparing the compounds of the general formulas (I) and (II).

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