anionic polyacrylamide used for mineral processing flocculant

anionic polyacrylamide used for mineral processing flocculant
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  • Why is anionic polyacrylamide chosen?
  • Anionic polyacrylamide is chosen because the intramolecular electrostatic repulsion between polymer segments forces the polymer chains to adopt a more extended conformation, increasing the efficiency of bridging flocculation.
  • Does anionic polyacrylamide improve coagulation-flocculation process?
  • Aguilar, M. I. et al. Improvement of coagulation-flocculation process using anionic polyacrylamide as coagulant aid. Chemosphere 58, 47–56 (2005). Muller, G., Fenyo, J. C. & Selegny, E. High molecular weight hydrolyzed polyacrylamides.
  • Can ionic polymers be used as flocculants?
  • Anionic polymers used as flocculants can also carry cutting in exploration drilling. These polymers are expected to encapsulate particles, making flocculation unlikely. Centrifuging cuttings-laden fluids struggles to remove fines prior to fluid return. Anionic flocculants are ineffective, but nonionics are shown to induce aggregation.
  • Can polymer materials be used as water soluble flocculants?
  • Our review indicates that there has been a large body of literature in the recent years focusing on introducing new polymer materials as water soluble flocculants for a variety of applications including wastewater treatment, mineral processing, and oil sands tailings treatment.