An intelligent magnetic microfluidic concentrator employs a technique of feeding ores circumferentially and allowing tailings to overflow centrally upward. The intelligent magnetic microfluidic concentrator comprises a sorting system consisting of an ore feeding chute, an overflow chute, an overflow tank, a sorting tank, and a magnetic system, the overflow tank is disposed at an upper portion of the sorting tank, the ore feeding chute is disposed at the top of the overflow tank, the ore feeding chute feeds an ore slurry to the upper portion of the sorting tank circumferentially along an inner wall of the sorting tank, and the tailings overflow out upward from the overflow tank disposed centrally and located at the upper half portion of the sorting tank. A magnetic microfluidic concentrator and a complete set of beneficiation equipment are also provided.

Apparatus uses hydrophobic synthetic beads to recover mineral particles in a slurry. The synthetic beads and the slurry are mixed into a mixture for processing. The apparatus has an interaction vessel installed in a section of pipeline. The interaction vessel is made from a pipeline folded or coiled into a compact struction having a continuous flow path. The interaction vessel has an input to receive the mixture of slurry and synthetic beads. The folded or coiled structure is used to increase the residence time of the mixture in the flow path, allowing more time for the mineral particles in the slurry to attach to the surface of the synthetic bead, while maintaining a small footprint. The interaction vessel may be formed from a number of loops of pipe section. The interaction vessel may be formed from one or more folded structures.

The present invention comprises a process and apparatus for separation of hydrocarbons from hydrocarbon-containing produced water, wherein in stage 1 the hydrocarbon-containing produced water is supplied with a gas-containing component, whereupon a gas- and hydrocarbon-containing produced water mixture is fed to an inlet tube (22, 27) in the center of a tank, whereupon the said mixture is tangentially distributed via at least one nozzle (7) and at least one baffle plate (8.1), whereupon separated hydrocarbons are conveyed to at least one outlet from the tank and cleaned water is conveyed to an outlet (12) from the tank.

A method for removing immiscible fluid from contaminated water includes at least one chamber; an injection line in fluid communication with an inlet of the one chamber; bubble generation means in fluid communication with the injection line for injecting gas bubbles into the injection line and allowing mixing in the injection line of the gas bubbles and the contaminated water to form an inlet fluid; an inlet weir within the chamber adjacent the inlet; an immiscible fluid weir within the chamber; a trough for collecting the immiscible fluid and allowing the immiscible fluid to flow out of the at least one chamber through an immiscible fluid outlet; and a cleaned water outlet generally at the bottom of the chamber.

A device for slurrying a suspension and a method for operating such a device are disclosed. In an embodiment a device includes a mixing container with an inlet opening configured to introduce the suspension into the mixing container a distributor element having a collecting container and an outlet arm fastened to the collecting container and a shaft with a longitudinal axis, wherein the shaft and the distributor element are arranged inside the mixing container, wherein the distributor element is mounted so as to be freely rotatable around the shaft, wherein the collecting container comprises a collecting opening configured to pass the suspension from the inlet opening into the distributor element, wherein the outlet arm comprises an outflow opening configured to let the suspension leave the distributor element, and wherein the outlet arm is designed such that the suspension is able to flow out of the distributor element starting from the collecting container via the outlet arm and the outflow opening, a flow of the suspension causing a torque on the distributor element so that the torque supports a rotation around the shaft.

A flotation line for treating mineral ore particles suspended in slurry, including at least three flotation units arranged in fluid connection with each other for allowing gravity-driven slurry flow between flotation units, and a feed inlet for supplying slurry into a first flotation unit; wherein at least three flotation units are configured to be uniplanar, each flotation unit includes at least one flotation cell; and wherein the launder lip height of each uniplanar flotation unit is lower than the launder lip height of the preceding uniplanar flotation unit in the direction of the slurry flow, so that an angle of sloping between a first uniplanar flotation cell, equipped with a launder lip and being larger than 150 m.sup.3, and a last uniplanar flotation cell, equipped with a launder lip and being larger than 40 m.sup.3, is formed; and the angle is 1.5 to 10 degrees relative to horizontal.

A flotation line for treating mineral ore particles suspended in slurry is disclosed. The flotation line includes a rougher part with at least one rougher flotation cell from which overflow is arranged to flow directly into a cleaner flotation line; and a scavenger part with at least two scavenger flotation cells from which overflow is arranged to flow back into a rougher flotation cell, or into a regrinding step and then into a cleaner flotation line. Underflow from a last scavenger flotation cell is arranged to be removed from the flotation line as tailings. At least 75% of the flotation cells include a mechanical agitator including a system for introducing flotation gas into the flotation cell. At least one of the flotation cells of the flotation line includes a mechanical agitator including a microbubble generator for introducing microbubbles into the slurry.

A froth flotation apparatus including a tank defining an interior, for holding a slurry, an aerator for aerating a mineral feed stream entering the interior and a system for feeding the aerated mineral stream into a contactor located in the tank.

An ultrafine bubble cleaning apparatus uses a liquid containing ultrafine bubbles having a size of less than 30 nm to rinse fine particles adhered to soil, sand, etc. to separate and collect the fine particles. The ultrafine bubble cleaning apparatus includes a water tank-shaped reservoir, a stirring device, a supernatant discharge device including a pump for discharging a supernatant of the liquid in the reservoir, and a sedimentation extraction device. Substances are loaded into the ultrafine bubble-containing liquid stored in the reservoir, and the ultrafine bubble-containing liquid is repeatedly brought into contact with the surface of the substance using the stirring device. When ultrafine bubbles get into a space between fine metal particles adhered to the surfaces, cracks, and pits of the substances to be cleaned (including metal ions) and fine particles of organic substances including a solvent, a chemical, and oil, the fine particles are separated and floated.

The present invention comprises a process and apparatus for separation of hydrocarbons from hydrocarbon-containing produced water, wherein in stage 1 the hydrocarbon-containing produced water is supplied with a gas-containing component, whereupon a gas- and hydrocarbon-containing produced water mixture is fed to an inlet tube (22, 27) in the center of a tank, whereupon the said mixture is tangentially distributed via at least one nozzle (7) and at least one baffle plate (8.1), whereupon separated hydrocarbons are conveyed to at least one outlet from the tank and cleaned water is conveyed to an outlet (12) from the tank.