Method of elimination of mercury or of arsenic in a liquid in the presence of a mass for collecting mercury and/or arsenic

摘要

Process for removing mercury or arsenic from a fluid in the presence of a solid mass for trapping mercury and/or arsenic. …??The said mass contains copper and sulphur at least partially in the form of copper sulphide and results (a) from the incorporation of a copper compound, other than a sulphide, in a solid inorganic support, (b) from an optional calcination of the product obtained in stage (a), from placing the product obtained above in contact with elemental sulphur and (d) from a heat treatment.