Method for removal of mercury from a diluted aqueous solution of Sulphuric Acid which is an aqueous solution of an alkali metal Compound of thiosulfate is FED inside dAnd a sulfuric acid Solution containing

摘要

This Invention relates to a method for removing mercury from dilute sulfuric acid.According to the method the sulfuric acid solution is separated with an aqueous solution containing thiosulfate,Precipitating Mercury in the sulfuric acid Solution as Mercury sulfide, or in an environment containing ChlorineAs a double Salt of Mercury sulfide chloride of Mercury.The amount of thiosulfate to be fed is adjusted so that the Mercury precipitate in the sulfuric acid Solution, but still not form elemental Sulfur.