Influence of roasting temperature on reactions between ferruginous blende and copper(II) oxide | Zendy

Ghodsi Mehdi | Zendy; Detournay Jacquy | Zendy; Schrobiltgen JeanMarie | Zendy; Naessens Georges | Zendy

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Influence of roasting temperature on reactions between ferruginous blende and copper(II) oxide

Author(s) -

Ghodsi Mehdi,

Detournay Jacquy,

Schrobiltgen JeanMarie,

Naessens Georges

Publication year - 1987

Publication title -

journal of chemical technology and biotechnology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.64

H-Index - 117

eISSN - 1097-4660

pISSN - 0268-2575

DOI - 10.1002/jctb.280370208

Subject(s) - roasting , copper , spinel , oxidizing agent , copper oxide , oxide , ferrite (magnet) , materials science , metallurgy , phase (matter) , raw material , inorganic chemistry , chemistry , organic chemistry , composite material

Thermal treatment in an oxidizing atmosphere of a mixture of raw blende (ZnS) and copper(II) oxide enhanced the formation of a mixed ferrite phase at temperature about 600°C. The composition established at 900°C was approximately (0.8 ZnO · 0.2 CuO)Fe 2 O 3 . For the mixture ZnS–CuO, with 5 to 15% CuO by weight, less than 15% copper was involved in the formation of the spinel phase. The increasing copper content in the mixture, roasted above 1000°C, favoured solubilization of iron, even in a weakly acid medium.

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