DETERMINATION OF LEACH CONDITIONS OF KARACAM LATERITIC NICKEL ORES WITH SULFURIC ACID UNDER EFFECT OF SODIUM FLUORIDE
Küçük Resim Yok
Tarih
2011
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
INT SCIENTIFIC CONFERENCE SGEM
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this work, dissolution of Ni and Fe in sulfuric acid medium under the influence of sodium fluoride was studied. The samples of the nickeliferous lateritic ore were taken from Eskisehir (Karacam) region of Turkey. The effects on the nickel and iron dissolution rates of stirring speed, sulfuric acid concentration, sodium fluoride concentration, reaction temperature were investigated. In order to investigate the effects of leaching temperature range of 30-50 degrees C the shrinking core model was applied by using the results of experiments. Kinetics analysis showed that the nickel and iron dissolution from lateritic ore could be described by the "diffusion" for nickel and "surface chemical reaction" for iron, respectively. The activation energies (Ea) and Arrhenius constants for the dissolution reactions were calculated.
Açıklama
11th International Multidisciplinary Scientific GeoConference -- JUN 20-25, 2011 -- Albena, BULGARIA
Anahtar Kelimeler
Lateritic ore, dissolution kinetics, Leaching, sulfuric acid, sodium fluoride, Eskisehir (Karacam), Turkey
Kaynak
11TH INTERNATIONAL MULTIDISCIPLINARY SCIENTIFIC GEOCONFERENCE (SGEM 2011), VOL I
WoS Q Değeri
N/A
Scopus Q Değeri
N/A
