B - Operations – Transporting – 03 – D
Patent
B - Operations, Transporting
03
D
B03D 1/00 (2006.01) B03B 1/04 (2006.01) B03B 5/00 (2006.01) B03B 5/60 (2006.01) B03B 5/62 (2006.01) B03B 7/00 (2006.01) B03D 1/02 (2006.01) B03D 1/14 (2006.01) B03D 3/00 (2006.01)
Patent
CA 2074746
A particulate mass is separated into different classes according to the oleophilicity of the particles. This is achieved by pretreating the particles in a manner to selectively render one class of particles more hydrophobic than another class of particles and introducing the treated particles into a body of aqueous froth (37). The particles are recovered in fractions according to the rate at which the particles sink in the froth (37).
de Beers Industrial Diamond Division (proprietary) Limited
Gowling Lafleur Henderson Llp
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