Removing as from converter dust by a hydrometallurgical method

Citation
E. Vircikova et M. Havlik, Removing as from converter dust by a hydrometallurgical method, JOM-J MIN, 51(9), 1999, pp. 20-23
Citations number
10
Categorie Soggetti
Metallurgy
Journal title
JOM-JOURNAL OF THE MINERALS METALS & MATERIALS SOCIETY
ISSN journal
10474838 → ACNP
Volume
51
Issue
9
Year of publication
1999
Pages
20 - 23
Database
ISI
SICI code
1047-4838(199909)51:9<20:RAFCDB>2.0.ZU;2-U
Abstract
Research has been conducted at the Faculty of Metallurgy, Technical Univers ity, Kosice, to develop a hydrometallurgical method for removing arsenic fr om copper converter dust. The process consists of a selective leaching of t he flue dust in which arsenic is dissolved in sodium-sulfide solution and t hen removed by precipitation methods using various agents: copper sulfate, a mixture of phosphoric acid with calcium hydroxide, calcium oxide, and fer rous or ferric sulfate. In principle, arsenic can be removed as a marketabl e product (copper arsenate for wood preservation) or as stable precipitate compounds suitable for safe landfill disposal under existing U.S. Environme ntal Protection Agency regulations.