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Methods of using natural products as dewatering aids for fine particles

  • US 6,526,675 B1
  • Filed: 06/07/1999
  • Issued: 03/04/2003
  • Est. Priority Date: 06/07/1999
  • Status: Expired due to Term
First Claim
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1. A process for dewatering a slurry of fine particulate material comprising:

  • i) rendering the material hydrophobic, ii) adding lipids dissolved in organic solvent, iii) agitating the slurry to allow for the lipid molecules to adsorb on the surface of the hydrophobized material so that its hydrophobicity is increased, and iv) subjecting the slurry containing the particulate material, whose water contact angle has now been increased, to a mechanical method of dewatering, so that the moisture of the particulate material is reduced.

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