Dewatering slurries

Details Dewatering slurries Dewatering slurries

B - Operations, Transporting

01

D

B01D 21/01 (2006.01) B01D 37/03 (2006.01) C02F 1/54 (2006.01)

Patent

CA 2115153

2115153 9303812 PCTABS00020 The specification describes a method of dewatering mineral slurries especially slurries of a fine coal. The method involves adding an anionic flocculant to the slurry and subsequently adding a dewatering aid to the slurry at or just prior to the formation of a filter cake during a filtration step. The specification also discloses that overloading with an anionic flocculant can be avoided if a dewatering aid is used in combination with the flocculant.

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