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WO/2003/008959A1 |
A method for the detection of gas bubbles in a flotation unit (1) is disclosed. The detection of the number and size of the gas bubbles (19) occurs by means of first ultrasound sensors (29) and second ultrasound sensors (31). By means of...
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WO/2003/002823A1 |
It refers to a process and apparatus for capture and withdrawal of petroleum and its derived, and other oil types or substances floating in water, in that a layer of superficial water is displaced by the fluid dynamic action, aiming to b...
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WO/2002/102715A1 |
The invention relates to a method and apparatus for the treatment of raw milk. According to the method is separated from the raw milk under the effect of gravity a cream fraction, which is recovered. According to the invention, an inert ...
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WO/2002/094411A1 |
A floating decanter and method for charging supernatant from a vesel without drawing floating solids or scum into the discharge. The decanter includes a weir (16) having a central opening and a solid bottom side, a float (12) adjacent to...
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WO/2002/092234A1 |
A method of recovering a target mineral from an ore containing the target mineral and an iron sulphide mineral comprising the steps of: a) grinding the ore to liberate target mineral from the iron sulphide mineral; b) forming a pulp of s...
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WO/2002/089991A2 |
In accordance with the present invention, there is provided a method of improving the separation of mineral values from their associated gangue. The method itself involves the addition of an effective amount of a treatment reagent to the...
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WO/2002/083316A1 |
The present invention relates to a gravity/flotation circuit where a mineral stream, such as a flotation rougher or cleaner concentrate, undergoes a two stage size separation wherein: i) the screen of the first stage provides a coarse st...
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WO/2002/081093A1 |
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 a...
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WO/2002/078851A1 |
A method of recovering a valuable component from a feed slurry in minerals processing plant for a mined material is disclosed. The method includes separating the feed slurry on the basis of particle size into at least two streams, of whi...
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WO/2002/074440A1 |
A separating device (10) especially for use in a pneumatic flotation system comprises an annular channel (18), at least one nozzle (16) for introducing aerated pulp substantially horizontally and tangentially into the annular channel (18...
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WO/2002/070138A1 |
The present invention relates generally to a process for flotation of sulphide minerals where a flotation pulp is separated into a coarse stream and a fine stream, preferably containing particles coarser than about 30 micron and particle...
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WO/2002/066168A1 |
The invention provides a collector for mineral separation comprising a solid particulate material having a surface provided with hydroxamate functional groups and which may be magnetic or buoyant and to a method for manufacture of the pa...
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WO/2002/060554A1 |
An aeration type underwater screen system capable of decomposing waste material into fine particles by a fine mesh screen (2) installed vertically with a slope and a swing flow without allowing the fine mesh screen (2) to be clogged by a...
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WO/2002/059386A1 |
This invention deals with the concentration process of zinc silicate based minerals, particularly willemite and calamine concentration, by single operations, including conventional steps of ore treatment, some of which comrpise the follo...
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WO/2002/049768A1 |
The invention relates to a flotation machine which at least contains a flotation cell having a means for feeding slurry in the flotation cell, a means for feeding air into the slurry and producing froth, a means for removing froth from t...
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WO/2002/043871A2 |
An improved method for purifying titania contaminated kaolin clay by froth flotation which features the use an hydroxamate flotation collector at a neutral or mildly alkaline pH wherein a slurry of the impure clay is conditioned for the ...
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WO/2002/041965A2 |
A combined degassing and flotation tank for separation of a water influent containing considerable amounts of oil and gas. A rotational flow is created in the tank which forces the lighter components such as oil and gas droplets towards ...
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WO2002010073B1 |
The invention relates to a method for separating a liquid, especially water, from particles suspended therein, by floatation. The method comprises the production of a mixture of a carrier gas and a flotation gas. The concentration of the...
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WO/2002/038277A2 |
The invention relates to a flotation reagent containing compounds of general formula (1) and (2) wherein R?1¿ and R?2¿ independently represent alkyl groups containing 1 - 18 carbon atoms, R?3¿ and R?4¿ independently represent hydroge...
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WO/2002/030832A1 |
Process and equipment for separating fat from waste water and reducing the amount of fat that has to be taken care of from restaurants, bakeries, food industries etc. While wastewater is added the equipment functions as a conventional fa...
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WO/2002/028538A2 |
A flotation device for separating materials or mixtures of materials from suspensions comprises a reaction and mixing chamber (18) with an eccentric feed (16) for mixing the suspension particles with gas bubbles and for conveying the mix...
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WO/2002/026350A1 |
A new method of improving the process of dewatering fine particule materials is disclosed. In this method, an aqueous slurry of fine particles is treated with appropriate hydrophobizing reagents so that the particulate material becomes m...
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WO/2002/022272A1 |
An aqueous copper composition is provided for use in hydrometallurgical flotation processes comprising a copper component, an ammonium hydroxide component or an amine component, and a weak acid component. The composition is used as an ac...
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WO2000045961A9 |
A fluid conditioning system and method is disclosed for coupling to a first solution source comprising a suspension solution and particles suspended in the suspension solution. The fluid conditioning system includes a containment vessel ...
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WO/2002/007891A1 |
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 t...
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WO/2002/007890A1 |
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 centre to the lower section of t...
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WO/2001/096026A2 |
It has been discovered that a mechanical flotation system having only two cells can be nearly as efficient as one having more cells, yet provide an apparatus with a considerably smaller footprint, significantly reduced capital and operat...
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WO2000043320A9 |
A compact dissolved-air-flotation (DAF) clarifier (10, 10', 210) treats raw water with suspended solid contaminants first in a flocculator (I, 14, 214) at the center of an annular tank (16, 216) where microscopic air bubbles float flocke...
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WO/2001/087490A1 |
The invention relates to a flotation agent for phosphate ore, which contains a fatty acid as a collector and alkoxylated alkylphenols as dispersing agents. Said flotation agent is characterised in that the alkylphenols are composed of a)...
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WO/2001/087780A1 |
The invention relates to a method for suspending solid or liquid, fat-containing or fatty impurities, especially for binding liquid impurities floating in the water or seawater and/or in the shores and located on the plumage or fur of an...
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WO/2001/074722A1 |
The invention concerns a device for water treatment by foaming, comprising: a reaction chamber (8); injecting means for bringing, through an injection orifice in the reaction chamber, water to be treated; means forming gas microbubbles (...
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WO/2001/070409A1 |
An improved aqueous-based extraction method for the separation and recovery of ultra-fine mineral particles. The process operates within the pseudophase region of the conventional aqueous biphasic extraction system where a low-molecular-...
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WO/2001/066259A2 |
An apparatus (10) for recovering a desired fraction of a raw material bearing the desired fraction includes a vessel or cell (12) defining a treatment chamber (14) therein and an inlet (22) into the chamber (14) for introducing a slurry ...
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WO/2001/062392A1 |
A nozzle (10) for a sparging in an aerated reaction vessel (22) such as a froth flotation column or cell. A body member (24) has a coupling at an inlet end (12) for connecting the body member (24) to a sparger pipe (16). The body member ...
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WO/2001/063054A1 |
The invention concerns a method for recuperating polluting liquids, in particular hydrocarbons spilled at sea, which consists in raising the polluting spill (10) by froth flotation, using air bubbles, up to the level of the tank (6) rece...
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WO/2001/060494A1 |
A clarification system for fluids in which particles are separated from the fluid by flotation and in which the buoyant media inducing the flotation is recycled. Flotation can be assisted by a flotation assistance device, such as dissolv...
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WO/2001/060523A1 |
A froth flotation process typically used to separate particulate materials such as coal, has a mixed size feed (1) separated in a sieve bend (2) into a stream of relatively fine particles (3) and a stream of relatively coarse particles (...
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WO/2001/051164A1 |
A separation system (10) is disclosed for use with a treatment tank (14), such as a flotation tank or decant tank, to separate particles and/or gases from a liquid suspension stream (20). The system is coupled to a liquid source comprisi...
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WO/2001/049388A1 |
The invention relates to a device for a flotation machine in which a drive shaft for mixing slurry and transporting air is driven by a drive arrangement and the drive shaft is provided with a bearing assembly and the drive shaft is at le...
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WO/2001/045850A1 |
The present invention consists in a particle classifier for segregating particles of a predetermined size or density range from a suspension of the particles wherein the size and/or density of the suspended particles varies with time, th...
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WO/2001/043881A1 |
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 (11, 51) to be treated in the flotation machine, members for removing the...
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WO/2001/043933A1 |
The invention relates to a method for separating a machining suspension, which accumulates for example during the mechanical machining of silicon, quartz or ceramic, from a cutting fluid. Abrasive grains, in addition to attrition materia...
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WO/2001/039888A1 |
The present invention relates generally to a process and an apparatus for flotation of sulphide minerals, such as sulphide minerals hosted in ores rich in magnesium minerals. The process involves grinding of the nickel ore rich in magnes...
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WO/2001/038001A1 |
The invention uses machine-vision to improve the performance of a flotation operation to provide a substitute for conventional human vision and problem-solving abilities. The invention redirects the conventional approach of 'characterisi...
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WO/2001/034269A1 |
A method of erecting a flotation tank and the resulting structure. At least one structural member is employed to form a frame generally defining a tank perimeter. A tank bottom is then formed at least partially within the frame of a hard...
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WO/2001/034304A1 |
In a method for detecting froth flow rate in a slurry-processing recovery apparatus such as a froth flotation cell (12), a sensor (48) disposed along a froth flow path (42) extending from an outlet of the apparatus is operated to determi...
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WO/2001/028935A1 |
The invention relates to a method and device for biologically purifying waste water. Over the course of the clarification process, the separated water is suctioned off in defined intervals from the separation process, and the sedimentati...
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WO/2001/016032A1 |
The invention relates to a method for detoxicating harbour silt, especially harbour silt that is charged with organotin compounds. The basic procedure step is an electroflotation.
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WO/2001/010561A1 |
The invention relates to a method for production of a blowing agent from dimethyl(isopropenyethyl)carbinol containing materials that stabilize flotation. The composition of the blowing agent, in weight per cent, is the following: dimethy...
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WO/2001/010560A1 |
The invention relates to a composition used for the flotation of mineral products, which contains a dimethyl(isopropenyethyl)carbinol blowing agent and a collector, whereby said blowing agent makes it possible to improve the technical pe...
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