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Veronica Giacinto, Sironi Giuseppe, Colombini Ariano: Arsenic removal from iron minerals. Montedison, September 16, 1970: GB1205453-A (1 worldwide citation)

1,205,453. Arsenic removal from iron minerals. MONTECATINI EDISON S.p.A. 18 Oct., 1967 [21 Oct., 1966], No. 47530/67. Heading C1A. Arsenic is removed from iron minerals and pyrite cinders by adding lime or limestone, heating to 800-1000 C. in an oxidizing atmosphere, separating at a particle size of ...


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