Process for the removal of arsenic from a fluid in presence of a captation mass

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.