Patent ID: 9315394
Filing Date: 2016-04-19
CPC Classification: B01D,B03D,C02F

Claim Text:
1. A method for separation of multiphase fluid of liquid-liquid phase and/or liquid-gas phases and/or gas-liquid phases where one or more of the phases is suspended in water with bubble/drop/particle sizes in the sub micron and micron area and/or fine particular organic or inorganic matter is present in one or more of the phases, comprising the steps of: placing a device in or in connection to a cyclone having an axis and an outer wall or flotation tank having an axis and an outer wall; adding said multiphase fluid through the device comprising a tube which forms a spiral shape, in order to bring about an initial phase separation by coalescing in the spiral shaped tube; and releasing the phases continuously tangentially out of the spiral tube in said cyclone—or flotation tank wherein further separation is generated, locating the spiral shaped tube in at least a part within the cyclone or flotation tank said vortex finder formed from said spiral tube is spaced from the outer wall of the cyclone or flotation tank and defines an annular region outside said vortex finder and inside the outer wall of the cyclone or flotation tank and is centered on the axis of the cyclone or flotation tank and said spiral tube forms a vortex finder of the cyclone or flotation tank, and forms a tangential fluid phase outlet on the inside of the outer wall of the cyclone or flotation tank.