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| Number | Title | Issue Date |
| 7950525 | Process and device for separating plastics of different chemical composition by flotation A method and a device for separating plastic materials in accordance with their chemical composition, which is based on the difference in density of such materials. For this purpose, a flotation process which works with a flotation liquid that is put into vibration ... | 05/31/2011 |
| 7886912 | Auxiliary agitator for a flotation device The invention provides an agitator (1) is disposed to agitate slurry within a flotation tank (2). The agitator includes a rotor (6) mounted on one end of a centrally disposed drive shaft (7) extending axially downwardly into the tank and ... | 02/15/2011 |
| 7458467 | Stator for a flotation cell The invention relates to a stator for a flotation cell to be used in the flotation of slurry-like material, such as ore and concentrate containing valuable minerals, by means of which stator the orientation of the slurry flow created by the flotation cell rotor can ... | 12/02/2008 |
| 7441662 | Stator for a flotation cell The invention relates to a stator for a flotation cell to be used in the flotation of slurry-like material, such as ore and concentrate containing valuable minerals, said stator including flow regulators installed at regular distances from each other. The stator flo... | 10/28/2008 |
| 7331704 | Start-up method for draft tube mixing A method for suspending settled solids in a liquid using a mixing assembly having a mixing vessel, draft tube disposed within the mixing vessel and an impeller disposed within the draft tube. The method includes rotating the impeller in a first rotational direction ... | 02/19/2008 |
| 7328806 | Apparatus for froth cleaning A process of separating a desired constituent from a mixture of particulate matter including the steps of: conditioning a liquid mixture of particulate matter with a frothing agent to create a pulp; aerating the pulp to generate a float fraction of froth supported o... | 02/12/2008 |
| 7267232 | Flotation device and method of froth flotation An apparatus for froth flotation including a flotation vessel including a side wall and a bottom wall that includes a fluid drain, and a mixing eductor inside the vessel disposed to impart net rotational force to contents of the vessel about an axis; and a method of... | 09/11/2007 |
| 7264232 | Device for foaming a liquid A device for foaming a liquid includes a casing with a turbine arranged inside the casing. A shaft connects an agitator with the turbine. An air supply nozzle is coupled to the casing and a tube is coupled to the casing for conducting a steam supply to drive the tur... | 09/04/2007 |
| 7021302 | Active feed paintball loader with flexible impeller An impeller for an active-feed paintball loader has resilient arms that engage paintballs in the lower portion (well) of the loader and advance them to and through the outfeed tube. The resilient arms are sufficiently stiff to move unobstructed paintballs located be... | 04/04/2006 |
| 6991111 | Flotation mechanism and cell The present invention relates to a froth flotation mechanism located in a flotation cell, comprising a directional element suspended from the lower end of a hollow shaft extending to the lower section of the cell and vertical vanes attached to said directional eleme... | 01/31/2006 |
| 6968956 | Separation apparatus and methods A separation apparatus and method for use in separating magnetic material from non-magnetic material that includes the use of a magnetic grid, e.g., a permanently magnetic grid, which defines a plurality of openings. The grid assists in preventing magnetic material ... | 11/29/2005 |
| 6945408 | Flotation machine The invention relates to a flotation machine, particularly to a flotation machine rotor, that is used for dispersing air, supplied via the rotor axis, to the surrounding slurry, and in which rotor there are formed alternating air ducts and slurry grooves, so that th... | 09/20/2005 |
| 6920983 | Device for separating solids from liquids by means of flotation The invention relates to a device for separating solids from liquids by means of flotation, particularly for separating impurities and ink particles from fibre suspensions, with several injectors 10, which are provided inside a flotation cell 1. It is ... | 07/26/2005 |
| 6832690 | Guiding device for a flotation machine The Invention relates to a flotation machine (1) which at least consists of a flotation cell (2) having a means for feeding slurry in the flotation cell, a gas dispersion mechanism (3) for feeding gas into the slurry and producing froth, a means... | 12/21/2004 |
| 6805243 | Flotation machine rotor and method of operation In a flotation machine rotor, a body portion defines an interior area that is adapted to communicate with a gas source. At least one rotor blade projects radially outwardly from the body portion with at least one aperture being defined thereby and in gaseous communi... | 10/19/2004 |
| 6799683 | Flotation mechanism and method for dispersing gas and controlling flow in a flotation cell The invention relates to a flotation mechanism (4) comprising a directional element (25) and vertical vanes (26) located in a flotation cell (2). The directional element is symmetrical and is fixed at the center to the lower section of th... | 10/05/2004 |
| 6793079 | Method and apparatus for froth flotation A process of separating a desired constituent from a mixture of particulate matter including the steps of: conditioning a liquid mixture of particulate matter with a frothing agent to create a pulp; aerating the pulp to generate a float fraction of froth supported o... | 09/21/2004 |
| 6772885 | Rotor for flotation mechanism and method for directing material flow in flotation machine The invention relates to a rotor used in the flotation mechanism in the concentration of ores. According to the invention, upper part of the rotor chambers under the rotor cover are formed to be downward inclined from the outer edge of the chambers into the core so ... | 08/10/2004 |
| 6708827 | Flotation machine and method for improving flotation effect The invention relates to a flotation machine and method for improving flotation effect in the flotation machine which is provided with members for feeding material to be treated in the flotation machine, members for removing the treated material out of the flotation... | 03/23/2004 |
| 6612444 | Apparatus and process for recovering a desired fraction of a raw material An apparatus for recovering a desired fraction of a raw material bearing the desired fraction has a vessel or cell defining a treatment chamber therein, with an inlet into the chamber for introducing a slurry of raw material to be treated into the chamber... | 09/02/2003 |
| 6308834 | Flotation tank impeller An impeller for use with apparatus to enhance mixing of a gas and a liquid, as used for example in froth flotation apparatus, having a substantially upright portion (11) substantially parallel to the axis of rotation (17), and a plurality of vanes (12) ex... | 10/30/2001 |
| 6126836 | Centrifugal flotation cell with rotating feed A superb centrifugal flotation cell with a rotating feed, is provided for use in an effective separation process to rapidly recover greater quantities of valuable fine particles. In the process, a slurry of fine particles is injected with air bubbles and ... | 10/03/2000 |
| 6109449 | Mixing system for separation of materials by flotation A mixing system in a tank provides a flotation cell for froth collection of minerals such as metallic ores thereby separating such ores from other materials with which they are mined and enabling a concentrated ore component to be collected. The mixing sy... | 08/29/2000 |
| 6095336 | Flotation cell with radial launders for enhancing froth removal A froth flotation cell comprising a tank and an impeller rotatably disposed in the tank for suspending solids and dispersing air in a pulp phase or slurry in the tank, thereby generating froth from the pulp phase. A plurality of radially oriented launders... | 08/01/2000 |
| 6070734 | Rotation shaft with vibration dampening device Excessive vibration in industrial mixers such as flotation cells and draft tube mixers is attenuated by connecting a vibration dampening device to a rotor or impeller which is disposed in a mixing tank for pumping a nonhomogeneous fluidic material placed ... | 06/06/2000 |
| 6068132 | Perfected reactor for liquids purification The invention realises a reactor for liquids purification comprising: a tank containing the liquid to be purified; a plurality of upper injectors suitable for introducing in the tank said liquid to be purified with an aeriform substance dispersed in it in... | 05/30/2000 |
| 6056125 | Cross flow cyclonic flotation column for coal and minerals beneficiation An apparatus and process for the separation of coal from pyritic impurities using a modified froth flotation system. The froth flotation column incorporates a helical track about the inner wall of the column in a region intermediate between the top and ba... | 05/02/2000 |
| 6053328 | Baffle for reactors used for liquids purification The invention realizes a baffle for a reactor for liquids purification, said reactor comprising: a tank containing the liquid to be purified; a plurality of injectors suitable for introducing in the tank said liquid to be purified; one or more rotating bl... | 04/25/2000 |
| 6000551 | Method for rupturing microalgae cells A method for rupturing microalgae in an aqueous suspension is disclosed. In one embodiment the aqueous suspension is passed through a constriction into a liquid phase at a pressure sufficient to rupture the cells by circulating the aqueous suspension thro... | 12/14/1999 |
| 5965857 | Flotation cell row A flotation cell row including a row of cells through which, in use, a process liquid flows in turn, including a first bank of cells having a last cell 4 being the most downstream cell and a second bank of cells having a first cell 5 being the most upstre... | 10/12/1999 |
| 5928125 | Centrifugal flotation cell with rotating drum A user-friendly centrifugal flotation cell with a rotating drum, is provided for use in an efficient separation process to rapidly recover greater quantities of valuable fine particles. In the process, a slurry of fine particles is injected with air bubbl... | 07/27/1999 |
| 5923012 | Flotation method and apparatus for treatment of cyclone sands An apparatus for extracting floatable minerals from a slurry (3). Slurry (3) is fed into a tank (2) via a feed inlet (25) and agitated and aerated so as to create an upper zone containing froth enriched with the floatable minerals. The agitation and aerat... | 07/13/1999 |
| 5914034 | Centrifugal flotation cell with rotating feed A superb centrifugal flotation cell with a rotating feed, is provided for use in an effective separation process to rapidly recover greater quantities of valuable fine particles. In the process, a slurry of fine particles is injected with air bubbles and ... | 06/22/1999 |
| 5909022 | Dual outlet pulp level control system for flash flotation devices A flash flotation device (1) comprises a tank (2) to contain slurry (3) incorporating minerals to be extracted, a feed inlet (25) for admission of slurry (3) into the tank (2), agitation means (10) to agitate the slurry (3) within the tank (2), aeration m... | 06/01/1999 |
| 5902977 | Flotation cell and method The present invention provides a process that employs both non-selective flotation and oxidative leaching of the resulting concentrates to recover an increased amount of copper from porphyry copper ores. The non-selective flotation step uses collectors an... | 05/11/1999 |
| 5807479 | Process for recovering copper from copper-containing material The present invention provides a process that employs both non-selective flotation and oxidative leaching of the resulting concentrates to recover an increased amount of copper from porphyry copper ores. The non-selective flotation step uses collectors an... | 09/15/1998 |
| 5707488 | Screen/vortex apparatus for cleaning recycled pulp related process A process for cleaning recycled pulp includes an upright cylindrical vessel having an upright cylindrical screen member open at its top and bottom ends and having a perforated screen wall which is centered on a vertical axis in the vessel. A plurality of ... | 01/13/1998 |
| 5611917 | Flotation cell crowder device A froth crowder device is disclosed for incorporation into a froth flotation cell to improve the froth removal dynamics of the flotation cell. The froth crowder device is positioned within a froth flotation cell above and below the overflow launder, and p... | 03/18/1997 |
| 5601703 | Flotation machine and process for removing impurities from coals The present invention is directed to a type of flotation machine that combines three separate operations in a single unit. The flotation machine is a hydraulic separator that is capable of reducing the pyrite and other mineral matter content of a coal. Wh... | 02/11/1997 |
| 5591327 | Flotation equipment The invention provides for flotation equipment which is locatable inside a container for a pulp to be subjected to a flotation process and a rotor or impeller or agitator rotatable within the container about a substantially vertical axis, the rotor includ... | 01/07/1997 |
