Investigating the effects of charge components on metallic chromium production via the aluminothermic route with no external energy

ORHAN G., Arslan C.

MINERALS & METALLURGICAL PROCESSING, cilt.16, sa.3, ss.62-64, 1999 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 16 Sayı: 3
  • Basım Tarihi: 1999
  • Doi Numarası: 10.1007/bf03402821
  • Dergi Adı: MINERALS & METALLURGICAL PROCESSING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.62-64
  • İstanbul Üniversitesi Adresli: Evet

Özet

The possibility of producing metallic chromium Si-om Cr2O3 via rite aluminothermic route, with no external energy supply, was the subject of th is laboratory-scale research. The experimental study focused on investigating the individual effects and quantitative optimization of the charge contents, i.e., the additions of CrO3, A I powder and CaO (or BaO). The highest chromium recovery of 98% was attained with rile additions of 12% CrO3 and 1.2 times the stoichiometrically required amount of Al powder. nle optimum CaO addition giving the highest chromium recovery was found when the CaO/Al weight ratio in the charge was equal to 0.3. When BaO was used, however, 95% CI extraction efficiency was obtained at a BnO/Al weight ratio of 0.15.