亜鉛残留物から非鉄金属を回収するための方法及び装置

Japanese Patent JP5071770

B2

The invention relates to a process for the separation and recovery of non-ferrous metals from zinc-bearing residues, in particular from residues produced by the zinc manufacturing industry. The process comprises the steps of:-subjecting the residue to a flash or agitated bath fuming step, thereby producing an Fe bearing slag and Zn- and Pb-bearing fumes; and-extracting the Zn- and Pb-bearing fumes and valorizing Zn and Pb; characterized in that CaO, SiO2 and MgO are added as a flux before or during the fuming step so as to obtain a final slag composition with: formula (I) all concentrations being expressed in wt %. The invention also relates to a single-chamber reactor for Zn-fuming equipped with one or more submerged plasma torches as heat and gas sources. [ Fe ] [ SiO 2 ] + [ CaO ] [ SiO 2 ] + [ Mg ⁢ O ] 3 > 3.5 ; ⁢ ⁢ 0.1 < [ CaO ] [ SiO 2 ] < 1.3 ; and ⁢ ⁢ 6 < [ SiO 2 ] < 22 ( I )

WO/2017/064735	A METHOD FOR PRODUCING A CONCENTRATE CONTAINING METAIS, RARE METALS AND RARE EARTH METALS FROM RESIDUALS GENERATED IN THE ZINC PRODUCTION CHAIN AND CONCENTRATE OBTAINED BY SAID METHOD
WO/1995/030626	RECOVERY OF CHEMICAL VALUES FROM INDUSTRIAL WASTES

Ban Kamp, Maurits
Arts, Jonathan
Jansens, Benedict
Santen, Sven

JP2006529965A

November 14, 2012

August 30, 2004

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Umicore

C22B19/30; C22B3/04; C22B3/44; C22B4/00; C22B4/08; C22B5/16; C22B7/00; C22B7/04; C22B13/02; C22B19/04; C22B19/28; C22B41/00; F27D11/08

JP60092434A
JP49005814B1
JP53070005A

Calyx
Miyazaki Yoshio
Toshio Nakamura
Tsutomu Kato
Kaoru Onozuka
High Masahiro
Yusuke Murakoshi

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