magnafloc flcoculant substitution of anionic polyacrylamide

magnafloc flcoculant substitution of anionic polyacrylamide
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  • Is magnafloc a polyacrylamide homopolymer?
  • Magnafloc® 800HP (BASF) is nominally a polyacrylamide homopolymer, although may contain up to 1 % of anionic functionalities. Fig. 3 b shows that in contrast to anionic flocculants, applying the nonionic 800HP at a dosage of only 56 g t −1 was able to induce significant aggregation of solids within the drilling fluid.
  • 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.
  • Do nonionic flocculants reduce aggregation of fine particles?
  • However, nonionic flocculants were found to be far more effective in inducing aggregation of fine particles, which in field trials (involving dosing in advance of a decanter centrifuge) typically led to a reduction in suspended centrate solids of ∼ 50 %.
  • What are magnafloc® flocculants and coagulants used for?
  • BASF's Magnafloc® range of flocculants and coagulants are used extensively whenever the extraction process uses water or lixiviants to aid mineral and metal recovery. In thickeners and clarifiers, the products are designed to enhance settling rates, improve clarities and reduce underflow volumes.