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Aqueous Reduction of Chalcopyrite Concentrate With Metals.
Shirts-MB; Winter-JK; Bloom-PA; Potter-GM
NTIS: PB 237 044 :18 pages
Bench-scale studies were made on a reductive hydrometallurgical procedure to convert chalcopyrite flotation concentrate to copper metal or a readily leachable sulfide. Reductive conversion of chalcopyrite and dissolution of iron and sulfur were accomplished in hydrochloric or sulfuric acid solution by the addition of metallic copper, iron, or lead. Use of metallic copper as the reductant enabled extraction of 95 and 46 percent of the iron and sulfur, respectively. The products were ferrous iron, hydrogen sulfide, and a copper sulfide. Use of metallic iron or lead as the reductant enabled extraction of 95 percent of both the iron and sulfur. The products obtained with metallic iron or lead were ferrous iron, hydrogen sulfide, and metallic copper.
IH; Report of Investigations
NTIS Accession No.
NTIS: PB 237 044
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division