B - Operations – Transporting – 02 – C
Patent
B - Operations, Transporting
02
C
241/127
B02C 23/36 (2006.01) B01F 7/18 (2006.01) B03B 7/00 (2006.01) C22B 1/00 (2006.01)
Patent
CA 1151624
ABSTRACT This invention provides a process and apparatus for the wet attrition of ore. The process comprises grin- ding the ore to a pulp having a particle size distribution such that about 80 % by weight of the particles have a diameter of from about 30 to about 0.4 mm ; and agitating the pulp in a slightly turbulent medium. The apparatus comprises a vat having top and bottom covers with central openings and a gutter disposed along the exterior circum- ference of the top of the vat ; a cylindrical shaft exten- ding through the opening in the top cover ; and a pair of impellers mounted at a distance apart on the shaft, the blades of the impellers being so arranged that the pulp is pumped towards the space defined between the two impel- lers.
339835
Gowling Lafleur Henderson Llp
Societe Metallurgique - Le Nickel-Sln
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