Pressure filtration of dispersed and flocculated alumina slurries

Sis H., CHANDER S.

MINERALS & METALLURGICAL PROCESSING, cilt.17, sa.1, ss.41-48, 2000 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 17 Sayı: 1
  • Basım Tarihi: 2000
  • Doi Numarası: 10.1007/bf03402827
  • Dergi Adı: MINERALS & METALLURGICAL PROCESSING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.41-48
  • İnönü Üniversitesi Adresli: Evet

Özet

The pressure-filtration behaviors of dispersed and flocculated alumina slurries at high percent solids were investigated with the objective of determining the effect of surfactant type and concentration on slurry properties. A high-purity alumina powder was used as a model solid. Dispersion of the alumina was controlled by pH and by surfactants that are known to act as electric and steric stabilizers. The effects of both ionic and nonionic surfactants were investigated Surface charge measurements of the slurries were carried out by an electrokinetic sonic amplitude (ESA) method to better understand the mechanisms. The effect of surfactant type and concentration on the kinetics of pressure filtration and cake properties are discussed.