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WO/2009/066167A2 |
The present invention is related to a method of quantification of fatty amines derived from effluents and residues from the reverse flotation process of iron ore by a colorimetric technique with bromocresol green as the organic dye.
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WO/2009/049289A1 |
A process is described for the separation of a mixture of solid particles of similar specific gravity into at least two fractions comprises introducing the particles in an aqueous medium, adding air to form bubbles, and generating two or...
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WO/2009/044074A2 |
The invention relates to a method for solid/liquid separation for purification of an effluent in a basin, by introducing air bubbles into the effluent to raise the material for separation to the surface of the basin, characterised in tha...
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WO/2009/044149A1 |
A method of controlling operation of a froth floatation cell for separating substances comprises introducing gas into liquid in the cell, creating a froth controlling gas flow rate into the cell in order to maximise gas recovery for the ...
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WO/2009/042372A1 |
Methods and systems for processing of liquids using compressed gases or compressed air are disclosed. In addition, methods and systems for mixing of liquids are disclosed.
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WO/2009/039559A1 |
A modular ore processing system for concentrating ores comprising, a plurality of separate modules (1, 2, 3, 4, 5, 6, 6a, 7) constructed so as to be serially arranged to form a feed processing system for concentrating a desired material ...
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WO/2009/037596A2 |
The present invention is directed to a precious metal recovery process in which carbonaceous material, such as preg robbing carbon, is floated after sulfide oxidation to separate the carbonaceous material from the precious metal.
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WO/2009/037594A2 |
The present invention is directed to flotation of refractory gold sulfide ores in which the ore is ground, floated, the tailings reground, and refloated to produce gold- bearing concentrates.
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WO/2009/033203A1 |
This invention concerns the beneficiation of coal, in particular a process for improving mined coal. The invention is a commercial scale process for improving coal, comprising the steps of: Comminuting coal to a particle size at which in...
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WO/2007/086003A9 |
The invention provides a flotation process which includes the steps of providing a flotation mixture containing mineral values to be recovered and adding an activator to the flotation mixture, which activator may comprise a metal complex...
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WO/2009/029753A1 |
Disclosed are compositions and methods for separating gangue material from metallic sulfide ores. The compositions typically include a lignosulfonate and do not include a cyanide salt. Suitable lignosulfonates may include lignosulfonates...
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WO/2009/027810A2 |
The nozzle (20) comprises an housing (21) with an inlet (22) and an outlet (25) for the fluid to be treated, and a partializer (23) which is supported in elastically slidable and adjustable way. The head (29) of the partializer (23) is o...
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WO/2009/026612A1 |
A method of operating a flotation cell wherein a feed stream containing particles is provided to the flotation cell wherein a proportion of the particles rise in the cell and exit the cell in a concentrate stream and a proportion of the ...
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WO/2009/029381A1 |
A system and method for remediating a body of water and collecting suspended and dissolved solids therefrom are provided. The system includes a water-impervious lining positionable in a depression in or adjacent a body of water. The lini...
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WO/2009/028677A1 |
Disclosed is a novel fluorite purification method, particularly a purification method which can reduce the arsenic content in fluorite effectively. A raw material fluorite containing CaF2 is milled to produce a fluorite ultrafine particl...
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WO/2009/010422A1 |
The present invention relates to a method for separating at least one hydrophobic agent from a mixture comprising said at least one hydrophobic agent and at least one hydrophilic agent, comprising the steps of: A) Producing a slurry or d...
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WO/2009/005978A1 |
Amine-aldehyde resins are disclosed for removing a wide variety of solids and/or ionic species from the liquids in which they are suspended and/or dissolved. These resins are especially useful as froth flotation depressants, for example ...
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WO/2009/005977A1 |
Modified resins are disclosed for removing a wide variety of solids and/or ionic species from the liquids in which they are suspended and/or dissolved. These modified resins are especially useful as froth flotation depressants in the ben...
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WO/2008/156819A2 |
Conditioning and concentration of microalgae are accomplished by the process steps of grinding a dilute aqueous dispersion of microalgae in the presence of grinding media and then applying adsorptive bubble separation. This process is am...
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WO/2008/157613A1 |
Methods and compositions for separating materials are provided. The present invention provides a method of separating a first material from a second material such as mixing the first material and the second material in a slurry with a be...
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WO/2008/156795A1 |
Process and apparatus are described for adsorptive bubble separation of hydrophobic particles from liquid dispersions. The process may be used to treat the gas/liquid dispersion after it has been introduced from two or more ducts near th...
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WO/2008/156835A2 |
A method of concentrating particles in a liquid-particle dispersion feed by adsorptive bubble separation by intimately contacting a gas with a pressurized stream of liquid in a chamber to form an aerated dispersion that retains at least ...
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WO/2008/151447A1 |
A method of agglomerating coal particles in a subterranean formation having a coal seam, comprising the steps of providing (a) a fluid having an aqueous medium and a first collector and/or a frother; (b) pumping the fluid into the format...
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WO/2008/148028A2 |
Methods and apparatuses for separating biological particles are provided In certain embodiments the separation apparatus is utilized for separating first biological particles from second biological particles under flow conditions, and co...
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WO/2008/140821A2 |
An energy efficient method and system for producing micron-sized particles and transforming and sequestering carbon dioxide into mineral carbonates is described, along with uses for the mineral carbonates produced in the process.
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WO/2008/135124A1 |
A flotation apparatus (10) for the separation of solid particles from a suspension with formation of a fraction lacking in solid particles and a fraction rich in solid particles comprises a tank with an inlet (14) for the suspension, wit...
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WO/2008/128044A1 |
A flotation separation system for partitioning a slurry that includes a hydrophobic species which can adhere to gas bubbles formed in the slurry. The flotation separation system comprises a flotation separation cell including a sparger u...
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WO2008097707B1 |
Froth flotation collectors comprising dithiocarbamates of the Formula (I) as described herein are useful for the beneficiation and recovery of metals from mineral ores.
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WO/2008/122692A1 |
An injector (2) for a flotation cell (1), comprising a feed channel (3) for feeding a fibre suspension flow to the flotation cell (1), a flow distribution element (6) for distributing the fibre suspension flow fed to the injector (2) int...
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WO/2008/104022A1 |
Separation of hydrophobic particles from a mixture of particles in a fluid is performed by providing a fluidized bed (18) as a relatively non-turbulent contacting mechanism in a flotation cell incorporating a settling chamber (30) locate...
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WO/2008/092995A1 |
The invention relates to a method whereby the pH buffer capacity of the feed routed to selective copper flotation is raised. The rise in pH buffer capacity is accomplished by feeding a soluble basic mineral among the ore in the pretreatm...
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WO/2008/089907A1 |
Suggested is a process for the flotation of non-sulfidic minerals or ores, in which crushed crude minerals or ores are mixed with water and a collector to form a suspension, air is introduced into the suspension in the presence of a reag...
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WO/2008/089906A1 |
Suggested is a process for the flotation of non-sulfidic minerals or ores, in which crushed crude minerals or ores are mixed with water and a collector to form a suspension, air is introduced into the suspension in the presence of a reag...
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WO/2008/090113A1 |
The invention relates to a flotation method for cleaning a liquid of the insoluble particles contained therein, wherein gas bubbles are produced in the liquid, adhere to the insoluble particles and, when rising, take said particles to th...
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WO/2008/086009A1 |
A system for removing dissolved contaminants, particulate contaminants, and oil contaminants from industrial waste water, the system including a gas floatation and primary oil contaminant removal subsystem including a tank for receiving ...
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WO/2008/084391A1 |
The invention concerns a process for purification of calcium carbonate-comprising minerals comprising at least one flotation step, characterised in that this step implements at least one quaternary imidazoline methosulfate compound as co...
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WO/2008/077849A1 |
The present invention relates to a reverse froth flotation process for removal of silicates from iron ore having K80 ≥ 110 μm using formulations comprising alkyl ether diamine and alkyl ether monoamine, alkylamine or alkyl diamine. Th...
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WO/2008/078389A1 |
Unburned carbon is efficiently separated according to the properties of fly ash. An apparatus is provided which comprises: a slurry preparation tank (10) in which water (c) is added to fly ash (a) to produce a slurry (d); a scavenger add...
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WO/2008/072299A1 |
A method comprising: a step in which unburned carbon contained in coal ash is mechanically separated with a classifier; a step in which the coal ash from which part of the unburned carbon has been removed with the classifier is pulverize...
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WO/2008/067733A1 |
A method of cyclone type flotation for slurry is that controlling the mean diameter of the slurry foam to 0.10-3.00 cm and limiting the thickness of slurry foam layer to 3-50 cm during mineral dressing. A method for controlling the mean ...
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WO/2008/067702A1 |
An ore slurry cyclonic flotation method includes controlling the average diameter of the ore slurry froth in the range of 0.10 - 3.00cm and the thickness of the ore slurry froth layer in the range of 3 - 50cm during the ore separation of...
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WO/2008/068309A1 |
The present invention relates to a flotation agent comprising a collector hydrocarbon composition comprising more than 80 wt% of iso and normal paraffins, less than 1 wt% aromatics, less than 5 ppm sulphur and less than 1 ppm nitrogen, a...
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WO/2008/065129A1 |
The invention relates to a collector for the separation by flotation of carbonates contained in non-sulfurous minerals, particularly phosphoric rock, comprising at least one phosphoric ester of formula (I) wherein, - R1 represents H, CH3...
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WO/2008/061289A1 |
A method for monitoring a froth phase of a liquid system including: detecting acoustic emissions in the ultrasonic frequency range using a sensor located within the froth phase; and analysing the acoustic emissions.
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WO/2008/062097A1 |
The invention relates to a rotor (1) for a flotation machine for dispersing air into slurry around the ro- tor, the rotor comprising a body (2) equipped with a set of blades (3). The body (2) is assembled from ra- dial sector modules (9)...
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WO/2008/059439A1 |
A method of treating value bearing material comprising oxidised or surface oxidised mineral values includes the steps of crushing the value bearing material, contacting the crushed material! with a sulfide solution to sulfide the oxidise...
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WO/2008/037086A1 |
The present invention relates to an apparatus and a process for efficient hydrophobic particles to gas bubble attachment in a slurry is provided. The process comprises: tangentially introducing a slurry stream into a cylindrical chamber ...
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WO/2008/028796A1 |
A flotation cell (1) and a method for the production of a floating cell (1) are provided, wherein the interior wall of a parting liquid container (3), at least in a partial region, comes in contact with the parting liquid, is provided wi...
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WO/2008/025088A1 |
A method for the separation of carbonaceous material from inorganic matter comprising the steps of mechanically working a feed stream; applying a separation means to the product of the preceding step to produce a flotation stream compris...
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WO/2008/025680A1 |
The invention relates to a flotation cell (1) comprising a tub-like container (3) that is open on the top and that is used to receive a pulp that is formed, substantially from a liquid and a particle mixture that is to be separated. At l...
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