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7562777 |
Flotation cell injector assembly for use with open or closed flotation deinking modules for recycled paper
An injector assembly that forms means for gasifying a slurry by expanding the infeed bore within the injector assembly having a source of ambient air in communication therewith whereby the negative...
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7544271 |
Open flotation de-inking module for recycled paper
Disclosed is an open flotation de-inking module for recycled paper comprised of a flotation cell having an injector module and air control module used in conjunction to infuse micro air bubbles...
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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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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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7281631 |
Process for de-inking paper pulp and flotation cell used for this process
The cell includes an enclosure having, at the top, a main inlet for the pulp to be de-inked and, at the bottom, a main outlet for the de-inked pulp. The pulp from the top to the bottom, passes...
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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...
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7267231 |
Process and device for aerating suspensions
A process for aerating suspensions, particularly to flotate them, for example in deinking of pulp suspensions, with one or more stages and/or cells. Each stage/cell has its own separate liquid...
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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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7108136 |
Pneumatic flotation separation device
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...
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7022224 |
Magnetic hydroseparator
The invention relates to the concentration of useful minerals and may be used in the concentration of iron ores. The magnetic hydroseparator includes a body with an upper drain, a supply device, a...
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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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6962618 |
Device for separating air from flotation foam
Device and process for the removal of air from flotation foam formed during the flotation of a paper-fiber-containing suspension. The device includes a driven rotor that includes a shaft and at...
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6959815 |
Selective reactive oily bubble carriers in flotation processes and methods of generation and uses thereof
The present invention provides for a reactive oily bubble carrier comprising: (a) a gas bubble having an oil-coating; and (b) a collector dissolved within the oil-coating. The present invention...
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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 ...
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6881297 |
Process for aerating dispersions
A device and process for aerating dispersions, particularly for flotation of pulp suspensions, in a de-inking process where the pulp suspension containing dirt particles is sprayed into a tank...
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6840383 |
Particle separating apparatus
A particle separating apparatus is provided with a stock solution feeder ( 1 ) for supplying a stock solution containing particles, a bubble generator ( 2 ) for generating air bubbles to promote...
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6776292 |
Apparatus for separation of solids in froth
An apparatus for separation of solids in froth is presented. The apparatus includes: a housing ( 1 ), establishing a chamber ( 2 ) for flows of liquid and solid material and a froth bed ( 30 ) on...
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6766909 |
Separation device for a flotation machine
Invention relates to a flotation machine which at least contains a flotation cell ( 2 ) having a means for feeding slurry in the floatation cell, a means for feeding gas into the slurry and...
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6763947 |
Flotation separation apparatus and infuser therefor
An improved flotation separation apparatus for separating and classifying diverse, liquid-suspended solids having a plurality of high volume air bubble infusers. Each infuser includes a circular...
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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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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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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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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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6279749 |
Process and apparatus for removing solids from an aqueous paper fiber suspension
Process and apparatus for removing solids from an aqueous fiber suspension in a flotation container that includes a drainage section. The process includes adding gas bubbles to the fiber suspension...
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6254771 |
Method of processing desulfurization absorption liquid and apparatus therefor
This invention relates to a method for the treatment of a desulfurization absorbing fluid after gas-liquid contact with combustion exhaust gas in which fine particles of unburned carbon and other...
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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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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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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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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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6073775 |
Cyclonic-static micro-bubble floatation apparatus and method
A cyclonic-static micro-bubble flotation apparatus which includes a single unit flotation device having a cyclonic separation unit in the bottom portion of the device and a column flotation portion...
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6073774 |
Pressurized deinking module with vent line
A mixture of air, paper stock made from recycled paper, foaming agents and surfactants are injected into a pressurized container. The container has a stock inlet at an end opposite a stock outlet,...
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6068132 |
Perfected reactor for liquids purification
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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...
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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...
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6010011 |
Flotation apparatus for mineral processing
Flotation equipment for mineral processing having a single column with multi-sections or chambers in which the partitions between chambers can be moved for optimum hydrodynamics resulting in the...
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6000552 |
Process for purification of a fiber suspension
A process for the purification of a fiber suspension (deinking or white water) in which a mixture of fiber suspension and gas bubbles are jtted into a flotation tank in an upwardly directed manner...
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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...
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5979665 |
Paper-pulp deinking method and equipment to implement this method
Equipment for deinking paper pulp, wherein the batch of pulp to be deinked is made to circulate to move from top to bottom whereas the air bubbles are introduced at least in the lower part and move...
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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...
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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...
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5916446 |
Process and apparatus for the separation of solid matter via flotation
Process and apparatus for the separation of solid matter via flotation. The flotation process for the separation of solid matter from a suspension takes place via the utilization of centrifugal...
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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)...
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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...
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5902976 |
System for separating waste materials by enhanced water floatation
Improved control for the separation of waste materials, or materials having waste components, is provided by the injection of air, or other gas bubbles, into a water-filled tank while...
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