Leaching kinetics of ulexite in oxalic acid

ABALI Y., Bayca S. U., Mistincik E.

Physicochemical Problems of Mineral Processing, cilt.47, ss.139-148, 2011 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 47
  • Basım Tarihi: 2011
  • Dergi Adı: Physicochemical Problems of Mineral Processing
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.139-148
  • Anahtar Kelimeler: concrete aggregates, shape, mechanical resistance, mobile plant, fixed plant
  • Manisa Celal Bayar Üniversitesi Adresli: Evet

Özet

Leaching of ulexite in oxalic acid, which is an organic acid, was studied. The parameters were solid-to-liquid ratio, acid concentration, stirring speed and temperature. The experimental data were applied to the homogeneous and heterogeneous kinetic models to determine the best one. The results showed that the leaching rate increases with increasing reaction temperature, stirring speed, acid concentration, but decreases with solid-to-liquid ratio and particle size. The leaching kinetics of ulexite was determined as the product layer model. The activation energy of the process was calculated.