DISSOLUTION KINETICS OF LATERITIC IRON ORE IN SULPHURIC ACID MEDIUM

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Tarih

2009

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Yayıncı

INT SCIENTIFIC CONFERENCE SGEM

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

In this study, dissolution kinetics of iron leaching by sulphuric acid under atmospheric pressure from Karacam (Eskisehir-Turkey) lateritic ore was studied. The effects on the iron reaching rate of stirring speed, sulphuric acid concentration, temperature, particle size, and solid/liquid ratio were investigated. In order to investigate the effects of leaching temperature range of 40-90 degrees C the shrinking core model was applied by using the results of experiments. Kinetics analysis showed that the iron dissolution from lateritic ore could be described by "surface chemical reaction". The activation energy (Ea) for the dissolution reaction and Arrhenius constant was calculated.

Açıklama

9th International Multidisciplinary Scientific Geo-Conference and Expo -- JUN 14-19, 2009 -- Albena, BULGARIA

Anahtar Kelimeler

Iron, leaching, dissolution kinetics, sulphuric acid, surface chemical reaction, Karacam, Turkey

Kaynak

SGEM 2009: 9TH INTERNATIONAL MULTIDISCIPLINARY SCIENTIFIC GEOCONFERENCE, VOL I, CONFERENCE PROCEEDING: MODERN MANAGEMENT OF MINE PRODUCING, GEOLOGY AND ENVIRONMENTAL PROTECTION

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N/A

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