The invention relates to a device for generating gas bubbles in suspensions, which are contained in a tank, having a rotation-symmetric stator (16) and a rotation-symmetric rotor (15), which is connected to a hollow drive shaft (5), wherein the stator, the rotor and the hollow drive shaft are arranged concentrically about a vertical axis of rotation (17) of the rotor and the drive shaft, and the rotor executes a rotational movement about the axis of rotation inside the stator.

An impeller and a diffusor is provided which are configured to be used in a flotation tank to enhance mixing of gas and slurry. The impeller comprises two opposing inlet ends and the diffusor comprises two opposing inlet mouths. The impeller is configured, when arranged inside the diffusor, to pump a bi-directional axial flow of slurry into the diffusor. Further, an arrangement using such diffusor and impeller for the use in a flotation tank to enhance mixing of gas and slurry is provided.

To obtain an oxygen clathrate hydrate containing the dissolved oxygen that is maintained in a state of being dissolved in a solution even when being heated to 100° C.

A device for gassing a liquid, including a rotor, which is driven to rotate and has multiple vanes for conveying the liquid, and a stator, which surrounds the rotor and has a plurality of flow channels, which each extends starting from a radially inner inlet opening adjacent to the rotor through the stator to a radially outer outlet opening and are delimited along their length by side walls, bottom surfaces, and top surfaces and can be acted on with liquid by the rotor in the region of the inlet opening, wherein between the inlet opening and the outlet opening, the side walls and/or bottom and top surfaces of the flow channels have a multitude of gassing openings, which can be acted on with compressed gas from a compressed gas source in order to introduce this gas into the flow channels. A corresponding method for gassing a liquid is also disclosed.

A fluid gasification, pumping and mixing equipment, for fluids contained in open or closed bodies, which allows to control the bubble size and the proportion of mixed gases, of a gas flow to be diffused into the fluid, with means to generate a gas suction flow that allows active filling of cavitation zones created by the radial movement of a cavitation propeller, which can be used to suction at different depths without losing suction force or generate higher energy consumption.

To obtain an oxygen clathrate hydrate containing the dissolved oxygen that is maintained in a state of being dissolved in a solution even when being heated to 100 C.

The invention relates to a device for generating gas bubbles in suspensions, which are contained in a tank, having a rotation-symmetric stator (16) and a rotation-symmetric rotor (15), which is connected to a hollow drive shaft (5), wherein the stator, the rotor and the hollow drive shaft are arranged concentrically about a vertical axis of rotation (17) of the rotor and the drive shaft, and the rotor executes a rotational movement about the axis of rotation inside the stator.

A rotor for rotating packed bed units (RPBs) is described. The rotor comprises a first plate and a second plate. The rotor further comprises a plurality of sets of rings concentrically interposed between the first plate and the second plate. Each set of rings comprises a plurality of rings are arranged cylindrically. Further, each ring comprises a plurality of packing elements. The rotor further comprises at least one metallic ring interposed between the plurality of sets of rings.

An apparatus for mass transfer between a liquid and a gas inside a rotor having a packing. The liquid is introduced at a center of the rotor and driven outward through the packing by centrifugal force generated by rotation of the rotor, and the gas surrounding the rotor is forced inward through the rotor by a pressure of the gas, counter to the liquid flow in the rotor. The packing inside the rotor is divided into individual packing segments that together form a circular disk. Each circular ring segment is formed by at least one structured packing formed of a plurality of superimposed woven, knitted, mesh or lattice structured surfaces composed of metal, in particular sheet-metal strips, or plastic or glass fibers, to which the axis of rotation of the rotor runs perpendicular.

An artificial-whirlpool generator includes a whirlpool generating member including at least one water inlet, a whirlpool generating chamber communicating with the water inlet, and a whirlpool outlet that is formed at a lower end portion of the whirlpool generating member and communicates with the whirlpool generating chamber; a position-fixing means that fixes the whirlpool forming member such that the entirety of the whirlpool generating member or only a portion of the whirlpool generating member, including the whirlpool outlet is submerged; and a swirling flow forming unit that forces water in a waterbody to be introduced into the whirlpool generating chamber through the water inlet and rotates the introduced water in one direction around an axle provided at a center portion of the whirlpool generating chamber to form a whirlpool that descends toward the whirlpool outlet.