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WO/2004/082842A1 |
The invention provides a flotation device including a series of flotation tanks (1) for processing a slurry incorporating valuable minerals for extraction. At least one of the tanks includes a side outlet (15) adapted for the withdrawal ...
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WO/2004/082841A1 |
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...
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WO/2004/080600A1 |
A method of measuring froth stability (as described herein) of a froth in a cell of a flotation circuit for a slurry of a mined mineral containing valuable material and gangue materials is disclosed. The method includes a step of measuri...
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WO/2004/080567A1 |
In a method for preparing oil/water mixtures or emulsions, highly volatile, liquid hydrocarbon compounds, preferably aliphatic hydrocarbons, serving as separating material are mixed with the oil/water mixture or emulsion, and the obtaine...
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WO/2004/076358A2 |
A dissolved air flotation system (1) and method for purifying water. The system (1) includes a flocculation tank (4), a flotation tank (2), and a collector pan (21) for receiving floats from the flotation tank (2) via a skimmer assembly ...
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WO/2004/060565A1 |
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,...
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WO/2004/060819A1 |
A process in which material comprising an aqueous liquid with dispersed particulate solids is transferred as a fluid to a deposition area, then allowed to stand and rigidify, and in which rigidification is improved whilst retaining the f...
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WO/2004/052495A1 |
Method and apparatus for supplying dissolved gases (such as oxygen, ozone, chlorine, etc.) for chemical and biological processes is described. The methods and apparatus described are particularly suitable for use in the biodegradation of...
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WO/2004/052815A1 |
Compounds of formula (I) wherein R1 and R2 are each independently C1-C2 alkyl, and m is 1, 2, 3, 4, or 5 and compositions of formula (II) wherein R1 and R2 are each independently C1-C4 alkyl, and n is an integer >&lowbar 0 and wherein th...
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WO/2004/052790A2 |
Methods and apparatus employing membrane filtration in biodegradation processes for treatment of wastewater in a membrane bioreactor fluid treatment system (1) is described. An aeration system such as a dissolved gas generator mixer (42)...
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WO/2004/053330A2 |
Methods and apparatus employing inert gases injected into the lower level of sloping underground oil-bearing formations as a driving mechanism and water injected into the upper level of the formation as a gas blocking mechanism for incre...
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WO/2004/050254A1 |
The invention provides an impeller (358, 366, 359) for a froth floatation cell of the type including a draft tube extending from a false bottom, a disperser depending from a standpipe, and a rotor located at least partly within the dispe...
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WO/2004/050253A1 |
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 (14); aerating the pulp to generate a ...
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WO/2004/045753A1 |
A mixer apparatus for use with a vessel centered about a longitudinal axis is disclosed. The mixer has a blade body is formed along a central head axis. The blade body has a first end, a second end spaced from the first end along the hea...
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WO/2004/043604A1 |
Invention relates to a flotation machine which at least contains a flotation cell (2) having a means for feeding slurry in the flotation cell, a means for feeding gas into the slurry and producing aerated slurry (4) and froth (3), a mean...
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WO/2004/035480A1 |
A construction and a method for batchwise treatment of water by means of dissolved-air flotation, comprising a tank (1) with an addition, from the bottom, of a mixture of water, which is about to be purified, via a pipe (2), and a water/...
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WO/2004/035218A1 |
Froth flotation processes, useful for beneficiating base metal m ineral values from metal sulfide ore, utilize a collector comprising an N-butoxycarbonyl-O-alkylthionocarbamate selected from the group consisting of N-butoxycarbonyl-O-met...
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WO/2004/030824A1 |
The invention relates to a method for controlling the reagent dosages in a concentration plant. In accordance with the method, a small part of the concentration plant feed is conducted to a side stream, where the feed is handle and varia...
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WO/2004/024283A2 |
Apparatus and methods are described for pharmaceutical grade manufacture extrachromosomal nucleic acids from cell lysates using flotation to separate and eliminate undesired insoluble cellular debris including chromosomal DNA from the ly...
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WO/2004/024334A1 |
A continuous flotation process and apparatus for iron-containing sulphides in ores and concentrates of ores are disclosed. The process includes adjusting the pH of an aqueous pulp of the ores or concentrates of the ores to be in the rang...
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WO/2004/022492A1 |
An apparatus (1) for delivery of a flocculant to a liquid stream and including: a container (5) enclosing a chamber (10); a baffle (15) extending across the chamber (10) so as to divide the chamber (10) into a first sub-chamber (l0a) and...
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WO/2004/018366A1 |
An improved production water treatment system and method are disclosed. The treatment apparatus includes a vertically oriented vessel (11) with tangentially disposed injection nozzles including one or more injection nozzles (P1, P2) for ...
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WO/2004/014562A2 |
The invention relates to a means for the flotation of sulphidic ores, comprising at least one compound of formula (I), where R1, R2 and R3 independently = alkyl groups with 1 to 18 carbon atoms, alkenyl groups with 2 to 18 carbon atoms, ...
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WO/2004/012920A2 |
A process for enhancing the magnetic susceptibility of plastic materials facilitates the separation of those materials to enable recycling. The invention includes the plastic which is formulated with the enhancement materials, typically ...
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WO/2004/012867A2 |
Eductor apparatus (100, 99) is provided for introducing gas into a liquid in a gas flotation cell, the apparatus comprising a clean liquid inlet port (101), the inlet port having an outlet end (104) through which the clean liquid is ejec...
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WO/2004/000447A2 |
The invention relates to a device for saturating a liquid with gas by means of pressure, which comprises: a saturation container (1) filled with pressurized gas, one or more nozzles (8) for injecting a liquid into the saturation containe...
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WO/2003/100169A1 |
The method of the invention is directed to the polymerization of acrylamide and cationic or anionic monomer(s) in a salt solution with the use of PEI (Poly Ethylene Imine), SMA (Styrene Maleic Anhydrous) and non-ionic surfactant mixture ...
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WO/2003/089144A1 |
The invention relates to a composition that is effective for use as a flotation auxiliary agent, containing: A) at least one compound of formula (I), wherein R1 represents a C8 to C22 alkyl radical and X- represents an anion, and; B) a b...
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WO/2003/089375A1 |
The present invention relates to a sludge treatment apparatus in an oxidized and dissolved air floating way, which is treated in the order of a separated excretions liquid retaining tank O in a solid-liquid separating and high-speed dehy...
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WO/2003/086978A1 |
The invention relates to a method for wastewater clarification using a flotation installation, to a flotation installation comprising a tank (1) which can be filled with an aqueous mixture of solids, and to a bubble generator for forming...
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WO/2003/078013A2 |
The invention relates to a flotation arrangement (1, 15) for flotating minerals or the like from slurries containing these particles, said flotation arrangement comprising a flotation cell (3) including edges (2) and a bottm (10), and a ...
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WO/2003/076343A1 |
The invention relates to a method for clarification by flotation of water loaded with material in suspension, characterised in that the clarification treatment is carried out in two successive stages in a single plant. The method compris...
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WO/2003/072495A1 |
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 thermodynamically favor the stable presence of cubi...
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WO/2003/070645A1 |
A process for treating contaminated fluid is disclosed. An apparatus (10) for treatment of contaminated fluid comprises: an integral tank (100); an inlet (200) for introducing a mixture of flocculent polymer and a contaminated fluid; a m...
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WO/2003/066224A1 |
The invention is an agitated countercurrent flotation apparatus (10) having a plurality of flotation cells (11-16) through which a separable fluid mixture of solids or liquids or both flows sequentially. Preferably, each cell is provided...
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WO/2003/060049A2 |
The invention relates to alkylglycol alkoxylates and alkyldiglycol alkoxylates that are obtainable by alkoxylating C4-8 alkylglycols or diglycols with C2-5 alkoxides up to an average alkoxylation degree of 1 to 8, based on the C4-8 alkyl...
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WO/2003/055608A1 |
The invention relates to an apparatus for making flotation more effective, said apparatus comprising a flotation cell provided with appropriate flotation means and a feed element such as a pipe for feeding slurry into the flotation cell&...
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WO/2003/051504A1 |
An apparatus for supplying a reagent to a froth flotation cell (170). The flotation cell is fed by a flotation gas feed line (100). A predetermined volume (10) is in fluid communication with said flotation gas feed line (100). The volume...
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WO/2003/049867A1 |
A new reagent for the application in the preparation of mineral raw materials, mainly sulphide and oxyde mono-and polymetallic ores of non-ferrous metals, which are used as a corrosion inhibitor of the equipment and grinding bodies and a...
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WO/2003/045566A1 |
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 the particles to be floated, so that they ...
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WO/2003/045567A1 |
The present invention involves a method of flotation (112) of a feed of platinum group metal ore material to prepare a platinum group metal concentrate (114) during mineral ore processing operations.
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WO/2003/039714A1 |
Naturally occurring lipids of vegetable and animal origin are broken into smaller molecules, and used as dewatering aids. The process of breaking the molecules includes transesterification, interesterification, and saponification followe...
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WO/2003/035265A1 |
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 attac...
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WO/2003/031040A1 |
The invention relates to a flocculation apparatus (1) for treating colloidal suspensions, comprising a suspension inlet (5), a suspension outlet (6) and a central inner cone (3), mounted centrally in a cone-shaped outer housing (2), wher...
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WO/2003/026800A2 |
A flotation machine rotor (40), having a body portion (44) and an interior area (48) that is adapted to communicate with a gas source.
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WO/2003/026801A1 |
The present invention relates to a method of controlling the variation in content of minerals that float naturally in the feed of a concentration plant flotation circuit processing valuable minerals, such as minerals containing precious ...
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WO/2003/024888A1 |
The present invention provides an improved method of beneficiating and dewatering kaolin clays. The product of the improved process is a brightened, dewatered kaolin, suitable for use in pigments and paper coating compositions. The impro...
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WO2002022229A9 |
An apparatus for facilitating the separation of organic materials from a fluid and for promoting the gas exchange from the fluid is provided. The apparatus includes a column having an interior chamber extending between a first end and a ...
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WO/2003/020389A1 |
The invention relates to a flotation machine used for separating valuable ingredients, such as metal concentrates, from the rest of the material, which flotation machine comprises at least means for feeding slurry to be treated in the fl...
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WO/2003/011470A1 |
The invention relates to a hydroxamate composition for collection of minerals by froth flotation, the composition including an aqueous mixture of hydroxamate wherein the pH of the composition is at least 11 and a method of collecting min...
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