Method for the recovery of mercury from mercury-containing material

摘要: Insoluble mercury salts and any in mercury-containing material are converted into a soluble form by controlled chlorination. The forms of the chlorination solution reduced with iron, preferably iron powder, to elemental mercury. After separation from solution, solids reduction containing entrained mercury, subjected for substantially quantitative recovery pure Separation elutriation through body is preferred. Prior separation, may be kneaded coalescence fine particles, followed slurrying material. Any selenium recovered suitable reductant, adding strong sulfuric acid presence ferrous chloride formed preceding reduction, excess sulfur dioxide. process carried out at ambient conditions, amount liquid controlled. Substantially no discharged residues, or residual liquid.