B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 8/14 (2006.01) B01D 3/00 (2006.01) B01D 53/14 (2006.01) B01F 5/00 (2006.01) B01F 5/04 (2006.01) B01J 10/00 (2006.01) B01J 19/00 (2006.01) D21C 9/10 (2006.01) B01F 3/04 (2006.01) C02F 1/78 (2006.01)
Patent
CA 2045436
ABSTRACT A number of different, efficient treatments of slurries and liquid with gas can be provided. A slurry or liquid is introduced into a first end of a vortex. A gas -- such as a chemically reactive gas -- is introduced from exteriorly of the vortex into contact with the slurry or liquid in the vortex, so that a desired reaction between the slurry or liquid and the gas takes place. The treated slurry or liquid is removed from the second end of the vortex while any residual or carrier gas is removed from the first end of the vortex. Gas introduction is preferably accomplished through a porous surface of revolution (e.g. cylindrical or conical) wall surrounding the vortex, the gas being in minute bubble form when it enters the slurry or liquid. This has particular applicability in the treatment of paper pulp using an ozone containing gas, or in reacting various liquids in the paper and pulp industry with gas (such as reaction of caustic solutions with chlorine or chlorine dioxide gas), the stripping of a strippable component from a liquid (e.g. stripping black liquor soap from black liquor, using air), or absorbing an absorbable component in a gas into a liquid (such as absorbing ozone, chlorine, or the like in water), or scrubbing furnace flue gases. Gas may also optionally be removed from adjacent the second end of the vortex through a separate conduit from the gas being removed from the first end of the vortex.
Bereskin & Parr
Kamyr Inc.
Torregrossa Louis O.
LandOfFree
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