Dissolution kinetics of tetrahedrite mineral in alkaline sulphide media
Yazarlar (3)
Samuel A Awe
Åke Sandström
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Hydrometallurgy (Q1)
Makale Dili – Basım Tarihi 06-2010
Cilt / Sayı / Sayfa 103 / 1 / 167–172 DOI –
Makale Linki https://www.sciencedirect.com/science/article/pii/S0304386X10000824
UAK Araştırma Alanları
Dedektör Teknolojisi
Özet
The present study investigates the dissolution kinetics of tetrahedrite in aqueous alkaline sodium sulphide solutions. Effect of reaction temperature, mineral particle size, sodium sulphide and sodium hydroxide concentrations on antimony and arsenic dissolution rate from tetrahedrite were studied. It was found that the rate of reaction increases with increase in reaction temperature, sodium sulphide concentration, and sodium hydroxide concentration and with decrease in mineral particle size. The kinetic study indicates that the rate of tetrahedrite leaching in the lixiviant under selected conditions is chemically controlled through the particle surface reaction. The estimated activation energies were found to be 81kJ/mol and 75kJ/mol, respectively, for antimony and arsenic dissolution from tetrahedrite, which are in agreement with the values of activation energies reported for the chemically controlled reaction process.
Anahtar Kelimeler
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Google Scholar 72

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