PARTICULATE MATERIALS FOR URANIUM EXTRACTION AND RELATED PROCESSES

摘要

Extraction method for recovering metals. Phosphoric acid is contacted with an extractant suspension of solid particulate material comprising a para- or ferromagnetic material core surrounded by an outer shell of a chelating polymer whereby a metal in the solution is adsorbed on the chelating polymer, thereby removing it from the phosphoric acid solution. The metal- containing solid particulate material is magnetically separated from the solution and the metal is stripped from the solid particulate material for reuse.