Iron Recovery from EAF Dust: No More Waste with Oxindus Recycling Technology

Posted on 08 February 2013
 

Iron Recovery from EAF Dust: No More Waste with Oxindus Recycling Technology
Iron Recovery from EAF Dust: No More Waste with Oxindus Recycling Technology BY MARC DEZIZ * SYNOPSIS: Built on mining and metallurgy OXINDUS experiences, the patented OxIndus process has been developed based on six years of R&D and smart combination of both pyrometallurgy and hydrometallurgy technologies; a two-phase process permitting the entire recycling and valorisation of the Electric Arc Furnace Dusts (EAFD), are now stabilized. OXINDUS is a CLEANTECH and Plug&Play Solution permitting a complete handling of Electric Arc Furnace Dust. The first phase is a recycling process in mini-mill. In situ, and after a pre-treatment with appropriate additives, EAFD are reintroduced into the furnace. The steelmaker is now enabled to recover the iron contained in EAFD without higher electric consumption. The technical performance of EAF is enhanced. The steel factory generates lower amount of dusts with higher zinc content. The transport of these dusts is reduced. The second phase, in OxIndus plant, hydrometallurgical technology is used to complete the treatment and eliminate the Chlorine and Fluorine contents under the form of soluble and harmless salts without any waste production. The final product is very suitable to be directly processed in zinc smelting plant with very high zinc recovery. 2011 ESCO Seminar

 

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