Investigation of the effects of some parameters in the production of chromate from chromite ores in Iskenderun region
[ N/A ]
Tarih
2006
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Wiley-V C H Verlag Gmbh
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The conversion of chromite ore from iskenderun region into chromate was investigated. Firstly, the chromite ore was analysed using conventional chemical methods. Then, the effect of some parameters such as roasting time, temperature and the amount of additives on the conversion efficiency to the chromate was examined. The optimum roasting conditions were determined as 300 degrees C, 2 hours, 10 times the stoichiometrically required amounts of NaClO3 and 6 times the stoichiometrically required amounts of KOH. Under these conditions, the maximum recovery of chromate was found to be 100%. The product obtained from the roasting process was leached with water to produce a clean chromate solution. The effect of temperature and solid/liquid (S/L) ratio was investigated in the water leaching experiments. The optimum experimental results obtained were 100% at a 1:5 solid to water ratio at 25 degrees C and 20 min leaching period. The chromate solution was purified using conventional purification processes.
Açıklama
Anahtar Kelimeler
chromite ore, production of chromate, leaching, roasting
Kaynak
Steel Research International
WoS Q Değeri
Q2
Scopus Q Değeri
Cilt
77
Sayı
7
