B - Operations – Transporting – 03 – D
Patent
B - Operations, Transporting
03
D
B03D 1/02 (2006.01) B03B 1/04 (2006.01) B03D 1/004 (2006.01)
Patent
CA 2142491
A process for the flotation of particles of lignitic coal, subbituminous coal or oxidized bituminous coal contained within a slurry of coal and gangue, comprising the steps of dispersing a surfactant throughout the slurry, first conditioning the slurry such that the surfaces of the particles of coal are selectively coated by the surfactant to produce activated particles of coal, dispersing an oil throughout the slurry, second conditioning the slurry such that the surfaces of the activated particles of coal are selectively coated by the oil to produce oiled particles of coal, and floating the oiled particles of coal on the surface of the slurry for separation from the slurry and gangue.
Procédé de flottation de particules de charbon lignitique, de charbon sous-bitumineux ou de charbon bitumineux oxydé contenu dans une boue de charbon et de gangue, consistant à disperser un agent tensioactif à travers toute la boue, à effectuer un conditionnement initial de la boue de sorte que les surfaces des particules de charbon sont sélectivement enrobées de l'agent tensioactif pour produire des particules de charbon activées, à disperser une huile à travers la boue, à effectuer un second conditionnement de la boue afin que les surfaces des particules de charbon activées soient sélectivement enrobées d'huile pour produire des particules de charbon huilées, et à faire flotter les particules huilées à la surface de la boue afin de les séparer de la boue et de la gangue.
Mckenny Colin J.
Raymond Brian Wilbert
Elk Valley Coal Partnership
Emery Jamieson Llp
LandOfFree
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