Abstract
Research has been conducted at the Faculty of Metallurgy, Technical University, Kosice, to develop a hydrometallurgical method for removing arsenic from copper converter dust. The process consists of a selective leaching of the flue dust in which arsenic is dissolved in sodium-sulfide solution and then removed by precipitation methods using various agents: copper sulfate, a mixture of phosphoric acid with calcium hydroxide, calcium oxide, and ferrous or ferric sulfate. In principle, arsenic can be removed as a marketable product (copper arsenate for wood preservation) or as stable precipitate compounds suitable for safe landfill disposal under existing U.S. Environmental Protection Agency regulations.
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For more information, eontact E. Vircikova, Technical University, Faculty of Metallurgy, Letna 9, 04000 Kosice Slovakia; telephone 421-95-602-2703; fax 421-95-633-7048; e-mail vircik@hfnov.tuke.sk.
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Vircikova, E., Havlik, M. Removing as from converter dust by a hydrometallurgical method. JOM 51, 20–23 (1999). https://doi.org/10.1007/s11837-999-0152-1
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DOI: https://doi.org/10.1007/s11837-999-0152-1