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7618517 |
Method and apparatus for monitoring liquid and solid contents in a froth
A method and apparatus are presented for determining the quantity of liquid and solid content in a removal stream of a froth created from a suspension that is generated during a froth flotation...
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7604126 |
Treatment of phosphate material using directly supplied, high power ultrasonic energy
In a process for beneficiating phosphate rock a slurry is provided having 30% to 70% by weight of a liquid phase and having a solid phase comprising clay, sand, and phosphate rock. In the process,...
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7585407 |
Processing asphaltene-containing tailings
Embodiments of a method and a system for recovering energy, materials or both from asphaltene-containing tailings are disclosed. The asphaltene-containing tailings can be generated, for example,...
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7537674 |
Closed floatation de-inking module for recycled paper
Disclosed is a closed floatation conventional de-inking process adopted in the recycled paper processing plants, in which, ink separation and removal constitutes a major task. The specific concerns...
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7510083 |
Column flotation cell for enhanced recovery of minerals such as phosphates by froth flotation
An apparatus for separating a mineral from a slurry of mineral and impurities, including a fluid vessel having a first, open end and a second end and a feed well disposed near the first end. The...
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7494016 |
Pneumatic flotation column
The machine productivity for a foam product is increased by increasing the surface of the enlarged upper part of the cylinder housing and by reducing material intensity by optimizing the dimensions...
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7468136 |
Grit trap
A vortex grit trap comprising a generally vertically extending tank of circular cross-section including a separation zone having an inlet and an outlet for liquid flow to and from the tank, and in...
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7438807 |
Bituminous froth inclined plate separator and hydrocarbon cyclone treatment process
Discloses apparatus to perform a process to remove water and minerals from a bitumen froth output of a oil sands hot water extraction process. A bitumen froth feed stream is diluted with a solvent...
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7389881 |
Flotation
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...
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7381305 |
Method and apparatus for monitoring liquid and solid contents in a froth
A method and apparatus are presented for determining the quantity of liquid and solid content in a removal stream of a froth created from a suspension that is generated during a froth flotation...
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7296682 |
Process for controlling operation of a flotation cell
A method for controlling operation of a flotation cell, where the liquid level and the foam level in the cell are measured and controlled. The method includes measuring at least one quality...
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7244406 |
Method for producing cubic boron nitride
A method is provided for producing cubic boron nitride, in which a mixture containing hexagonal boron nitride and a catalyst is maintained under pressure and temperature conditions that...
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7172074 |
Concentration/calcination process of zinc silicated minerals and concentrate zinc silicate based product
A concentration process of zinc silicated minerals, particularly willemite and calamine concentration, by single operations, or conventional steps of ore treatment, some of which include the...
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7163105 |
Froth flotation process and apparatus
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 )...
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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...
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6945407 |
Flotation of sulphide minerals
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...
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6915908 |
Method of decontaminating soil
A method for decontaminating soil containing inorganic contaminants having a degree of liberation of at least 60%, comprising the steps of removing from a coarse fraction at least a portion of...
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6889844 |
Collectorless flotation
The present invention relates to a process for improving the recovery of valuable sulphide minerals. The process involves determining an Eh range within which the valuable sulphide mineral may be...
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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...
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6805242 |
Method of reducing phosphate ore losses in a desliming process
The specification describes one or more embodiments of the present invention, which relates to a method of reducing phosphate ore losses in a desliming process. A phosphate ore preparation slurry...
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6799682 |
Method of increasing flotation rate
Methods of increasing the rate of separating hydrophobic and hydrophilic particles by flotation have been developed. They are based on using appropriate reagents to enhance the hydrophobicity of...
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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...
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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...
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6536596 |
Flotation cell line
The invention relates to a flotation cell line, wherein there are installed, in order to treat the flotatable material, several flotation cells so that the flotatable material can be set to flow...
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6520340 |
Method for improving the operation of a flotation cell line
The invention relates to a method for improving the operation of a flotation cell line, said flotation cell line comprising several flotation cells ( 1, 2, 3, 4, 5; 11, 12, 13, 14, 15 ) that are...
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6475337 |
Process for aerating dispersions
A device and process for aerating dispersions, particularly for flotation of pulp suspensions, in a de-inking process. The process includes at least two stages, where each stage has a separate...
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6427843 |
Flotation separation of valuable minerals
A process for separating minerals of different mineralogical character. A milled slurry or flotation concentrate is subjected to a first conditioning step ( 20 ) followed by a first flotation step...
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6425485 |
Air-assisted density separator device and method
A process is described for separating particles based on differences in mass after the selective attachment of air bubbles to reduce the density of one or more of the components of the feed. A...
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6422393 |
Recovery from fine froth flotation feed (slimes)
A process for the recovery of minerals from the fine particle size fraction of froth flotation feed (slimes), which is conventionally discarded to waste because slimes interfere with efficient...
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6413366 |
Method and device for flotation of pollutants from an aqueous fibrous material suspension
Process and device for the flotation of contaminates out of an aqueous fibrous suspension using a foam. The process includes creating the foam, introducing the fibrous suspension into the foam,...
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6395131 |
Flotation machine for a fiber suspension and method of using same
A flotation machine is provided which includes at least one flotation cell having an inner chamber. The fiber suspension is transported into the inner chamber, and a gas is injected into the fiber...
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6390303 |
Method for optimizing flotation recovery
A method for optimising a mineral recovery process. A slurry 10 is fed to a conditioning step 20 . The condition slurry 30 is then provided to a flotation circuit 40 to recover a concentrate...
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6290066 |
Method for removal of ammonia from fly ash
A method for removing ammonia and ammonia compounds from fly ash and other combustion by-products is provided. The method may be performed with raw or processed fly ash, or it may be performed in...
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6273263 |
Sediment and soil remediation by column flotation
Disclosed herein is a method for the removal of organic and inorganic contaminants from contaminated sediment or soil. The method comprises a first step of removal and disposal of very large debris...
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6251163 |
Method for recovering gold from refractory carbonaceous ores
The process of the present invention recovers precious metals from refractory carbonaceous precious metal ores by floating a portion of the ground ore, blending the concentrate with an unfloated...
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6248207 |
Separation of solids from aqueous suspensions containing cellulosic fibers and fines
Cellulosic fines and cellulosic fibers are separated from a suspension containing the fines, the fibers and hydrophobic materials by screening the suspension to remove the fibers, and then...
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6234318 |
Flotation and cyanidation process control
A method for controlling a froth flotation system in a mineral processing operation for recovering metal from a metal source. A rule-based expert system adjusts performance of the froth flotation...
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6228212 |
Method of removing wax from cellulosic fiber used in a fiber suspension for a paper-making machine
The invention comprises, in one form thereof, a method of removing wax from recycled cellulosic fiber. The cellulosic fiber is pulped in a pulper to a suspension with a consistency of less than...
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6227374 |
Process and floatation device for the removal of interfering materials from an aqueous fiber pulp suspension
The process is designed for the flotation of interfering materials from an aqueous fibrous pulp suspension and is in particular used in the processing of printed or used paper that is otherwise...
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6197153 |
Method for de-inking paper pulp from recycled paper
The method for de-inking paper pulp produced by the reduction to pulp, with water, of old papers of various qualities according to which a stream of air bubbles (C) is sent through the flow (E 2 ,...
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6186335 |
Process for beneficiating kaolin clays
A improved process for beneficiating kaolin clays to remove discoloring impurities is disclosed. The beneficiation of kaolin clay is improved by fractionating a kaolin clay starting material into a...
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6164456 |
Method and apparatus for isolation of trace materials from a heterogenous sample
An elutriation apparatus which combines pressurized liquid nozzles (16A) and the low energy air nozzles (20) producing bubbles for flotation and separation of trace materials in a heterogeneous...
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6129212 |
Flotation process and mixing device
The flotation process for separating particulate impurities from fibrous suspensions in a flotation tank. Upon or after entry into the flotation tank, the fibrous suspension added to the flotation...
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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...
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6126014 |
Continuous air agglomeration method for high carbon fly ash beneficiation
The carbon and mineral components of fly ash are effectively separated by a continuous air agglomeration method, resulting in a substantially carboree mineral stream and a highly concentrated...
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6103128 |
Method and apparatus for mixing gas with liquid
A mixing device in the form of a centrifugal pump is used to mix gas (typically air) with liquid (typically effluent water, dispersion water, or waste paper pulp suspension, etc.). The pump is...
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6092667 |
Method and apparatus for aeration of liquids or slurries
A method of aerating a liquid comprising the steps of providing a column, introducing liquid under pressure into an upper zone of the column in the form of a jet of liquid directed in a path,...
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6092666 |
Reduction of pH modifying agent in the flotation of copper minerals
A method is provided for reducing the consumption of alkaline pH modifier in a mineral separation circuit which employs sulfoxy radical-containing reagents. The method comprises the addition of a...
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6082549 |
Process and facility to remove solid matter from an aqueous fibrous material suspension
A process and apparatus serves to remove solid matter from an aqueous material suspension produced from printed used paper. As many interfering material particles are collected by floatation as...
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6059118 |
Process for recovering fine particulates in a 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...
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