The distribution of cobalt between Co-Cu alloys and Al2O3-FeO-Fe2O3-SiO2 slags

Derin B., Yucel O.

Scandinavian Journal of Metallurgy, cilt.31, sa.1, ss.12-19, 2002 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 31 Sayı: 1
  • Basım Tarihi: 2002
  • Doi Numarası: 10.1034/j.1600-0692.2002.310103.x
  • Dergi Adı: Scandinavian Journal of Metallurgy
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.12-19
  • Anahtar Kelimeler: cobalt, copper, equilibrium, slag, IRON SILICATE SLAGS, THERMODYNAMIC PROPERTIES
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

The solubility of cobalt in alumina-containing iron silicate slags (0.092-3.365 wt% Co) in equilibrium with cobalt-copper-iron alloys (0.070-6.351 wt% cobalt) and oxygen pressures of 1.125.10-8, 2.396-10-9 and 4.536-10-10 atm has been studied at 1673 K. It has been found that: (I) the solubility of cobalt in the slag increased with increase in concentration of cobalt in the alloy, and also increased with increasing oxygen partial pressure in the atmosphere at a fixed concentration of cobalt in alloy; and (II) the activity coefficient of cobalt oxide in the slag increased with increasing cobalt oxide in the slag and/or decreasing oxygen partial pressure in the system. (C) Munksgaard, 2002.