Separation of carbon nanotubes into chirally enriched fractions

A mixture of single-walled carbon nanotubes (“SWNTs”) is separated into fractions of enriched chirality by preparing an aqueous suspension of a mixture of SWNTs and a surfactant, injecting a portion of the suspension on a column of separation medium having a density gradient, and centrifuging the column. In some embodiments, salt is added prior to centrifugation. In other embodiments, the centrifugation is performed at a temperature below room temperature. Fractions separate as colored bands in the column. The diameter of the separated SWNTs decreases with increasing density along the gradient of the column. The colored bands can be withdrawn separately from the column.

Recovering Valuable Mined Materials from Aqueous Wastes

Disclosed herein are systems and methods for recovering a target material from an aqueous stream. The target material can be a natively hydrophobic target material, such as a hydrocarbon material, such as coal. The target material can also have a surface modification that renders it hydrophobic. Systems for recovering the target material can comprise an extractant formulation comprising a light hydrocarbon solvent and a high molecular weight hydrophobic polymer, wherein the extractant formulation is mixable with the aqueous stream in a mixer to form an admixed solution having a hydrophobic portion and an aqueous portion, with the target material partitioning to the hydrophobic portion; a separator for isolating the hydrophobic portion from the aqueous portion; and a collector to which the hydrophobic portion is directed, wherein the target material is recovered from the hydrophobic portion.

CROSS-PHASE SEPARATION OF NANOWIRES AND NANOPARTICLES

In one embodiment, a process includes creating a mixture of an aqueous component, nanowires and nanoparticles, and a hydrophobic solvent and allowing migration of the nanowires to the hydrophobic solvent, where the nanoparticles remain in the aqueous component. Moreover, the nanowires and nanoparticles are in the aqueous component before the migration. 1. A process , comprising:creating a mixture of an aqueous component, nanowires and nanoparticles, and a hydrophobic solvent; andallowing migration of the nanowires to the hydrophobic solvent, wherein the nanoparticles remain in the aqueous component,wherein the nanowires and nanoparticles are in the aqueous component before the migration.2. The process of claim 1 , wherein the hydrophobic solvent is organic.3. The process of claim 1 , wherein the hydrophobic solvent is selected from a group consisting of chloroform claim 1 , hexane claim 1 , toluene claim 1 , and isoheptane.4. The process of claim 1 , wherein the nanowires and nanoparticles are metallic.5. The process of claim 4 , wherein the nanowires and nanoparticles are selected from a group consisting of copper claim 4 , gold and silver.6. The process of claim 1 , wherein the nanowires and nanoparticles are of a semiconductor material.7. The process of claim 1 , wherein the nanowires and nanoparticles are ceramic.8. The process of claim 1 , wherein a surfactant is present in the aqueous mixture for stabilizing the nanowires and nanoparticles in the aqueous component.9. The process of claim 8 , wherein the surfactant is hydrophobic.10. The process of claim 1 , wherein the nanowires have {111} facets on ends thereof.11. The process of claim 1 , wherein the nanoparticles have {100} facets on ends thereof.12. The process of claim 1 , wherein the nanowires comprise at least 95% separation yield of a solid material in the hydrophobic solvent after the migration.13. The process of claim 1 , wherein the nanoparticles comprise at least 95% separation yield of a solid ...

Treatment agent for wet-coating-booth circulating water

A method for treating a wet-painting booth circulation water, includes, into somewhere along a path for a wet-painting booth circulation water supplied from a water tank to a painting booth for collecting an unapplied paint and then returned to the water tank, adding a treatment agent to a wet-painting booth circulation water so as to detackify the unapplied paint collected in the circulation water, wherein the treatment agent includes a cellulose acetate solution.

Membrane cleaning and desalination with a membrane using acoustic pressure shock waves

Acoustic pressure shock waves are applied to a membrane in a fluid to prevent attachment of or dislodge biological or solid matter for membrane cleaning or desalination with a membrane.

Waste water treatment method and waste water treatment apparatus

In an insoluble material-generating apparatus, an iron salt and/or an aluminum salt, and a cationic polymer flocculant, are added to waste water containing dissolved substances to generate insoluble material. To the insoluble material-containing waste water, an anionic polymer flocculant is added, after which the waste water containing the anionic polymer flocculant and the insoluble material is stirred in a granulating flocculation precipitation tank, the insoluble material is granulated, and solid-liquid separation of the generated granulated material is performed to obtain treated water. The amount of the iron salt or the aluminum salt added is an iron or aluminum concentration of at least 0.4 mmol/L, and the cationic polymer flocculant and the anionic polymer flocculant are added so that the product of the cationic polymer flocculant concentration and the cationic group percentage is equal to or less than the product of the anionic polymer flocculant concentration and the anionic group percentage.

DENSITY-BASED SEPARATION OF BIOLOGICAL ANALYTES USING MUTLIPHASE SYSTEMS

The disclosed methods use a multi-phase system to separate samples according to the density of an analyte of interest. The method uses a multi-phase system that comprises two or more phase-separated solutions and a phase component such as a surfactant or polymer. The density of the analyte of interest differs from the densities of the rest of the sample. The density of the analyte of interest is substantially the same as one or more phases. Thus, when the sample is introduced to the multi-phase system, the analyte of interest migrates to the phase having the same density as the analyte of interest, passing through one or more phases sequentially. 1. A method of analyzing a sample comprising at least one analyte of interest using a multi-phase system , comprising:a) providing a sample comprising at least one analyte of interest;b) providing a multi-phase system comprising two or more phases with clear boundaries, whereinat least one of the phases comprises a phase component, wherein the phase component is selected from the group consisting of a polymer, a surfactant, and combinations thereof;each of the two or more phases has a different density and the two or more phases, taken together, represent a density gradient; andthe phases are phase-separated from each other; andc) introducing the sample comprising a mixture of a tag molecule and the analyte to the multi-phase system, wherein the analyte and the tag molecule form a tag molecule-analyte adduct; andd) allowing the tag molecule-analyte adduct to migrate to a location in the multiphase system that is characteristic of its density, wherein during migration the sample contacts one or more of the two or more phases sequentially and the analyte and the tag molecule-analyte adduct occupy different locations.2. The method of claim 1 , wherein the tag molecule-analyte adduct is formed before or after the sample is introduced to the multi-phase system.3. The method of claim 1 , wherein the sample comprises one or more ...

CRUMPLED MESOPOROUS MXENE POWDERS SYNTHESIZED BY ACID-, BASE-, OR SALT-INDUCED CRUMPLING

The present disclosure describes a crumpled form of MXene materials, and methods of making and using these novel compositions. 1. A crumpled MXene or a composition comprising a crumpled MXene , wherein the crumpled MXene comprises a two dimensional crystalline transition metal carbide , nitride , or carbonitride arranged in a three-dimensional interpenetrating mesoporous structure.2. The composition of claim 1 , wherein the crumpled MXene exhibits mesopores in a range of from 2 nm to 6 nm.3. The composition of claim 1 , wherein the composition further comprises an alkali metal cation or alkyl ammonium cation incorporated into the crumpled MXene.4. The composition of claim 1 , wherein the crumpled MXene contains lithium claim 1 , sodium claim 1 , or potassium ions within its three-dimensional interpenetrating mesoporous structure.5. The composition of claim 1 , wherein the crumpled MXene is derived from a pH induced flocculation of a near pH neutral dispersion of delaminated MXene flakes.6. The composition of claim 5 , wherein the pH induced floculation results from the addition of an organic or inorganic mineral acid to the near pH neutral dispersion of the delaminated MXene.7. The composition of claim 6 , wherein the pH induced flocculation results from the addition of hydrochloric claim 6 , nitric claim 6 , or sulfuric acid to the near pH neutral dispersion of the delaminated MXene.8. The composition of claim 5 , wherein the pH induced flocculation results from the addition of a hydroxide base to the near pH neutral dispersion of the delaminated MXene flakes.9. The composition of claim 8 , wherein the pH induced flocculation results from the addition of LiOH claim 8 , NaOH claim 8 , KOH claim 8 , or an alkyl substituted ammonium hydroxide to the pH neutral dispersion of the delaminated MXene flakes.10. The composition of claim 1 , wherein the crumpled MXene is derived from a salt induced flocculation of a near pH neutral dispersion of the delaminated MXene flakes. ...

CONDUCTIVE NANOSTRUCTURE PURIFICATION

A method of purifying a metal nanostructure composition containing desired nanostructures and undesired nanostructures. The method includes providing a solution within which metal nanostructures have been synthesized including desired and undesired nanostructures. The solution includes polyol and has a viscosity. The method includes diluting the solution with a dilutant to lower the viscosity of the solution and provide a diluted solution. The method includes sedimenting the undesired nanostructures from the diluted solution. The method includes collecting the supernatant with the desired nanostructures and retaining the undesired nanostructures inside the sedimentation device. In an example, such is via a sedimentation device, which is a special tray system designed with grooved bottoms to retain the undesired nanostructures. 1. A method of purifying a metal nanostructure composition , the method comprising:providing a solution within which metal nanostructures have been synthesized including high aspect ratio nanostructures and low aspect ratio nanostructures, the solution including a polyol and having a viscosity;diluting the solution with a dilutant to lower the viscosity of the solution and provide a diluted solution; andsedimenting the low aspect ratio nanostructures from the diluted solution, wherein the method includes introducing the diluted solution into a device that aids in retention of the high aspect ratio nanostructures in the diluted solution and removal of the low aspect ratio nanostructures that are sedimented from the diluted solution and the device includes a tray having a grooved bottom orientated traverse to an outflow direction associated with an outlet of the device.2. The method of claim 1 , wherein the high aspect ratio nanostructures remain in the diluted solution.3. The method of claim 1 , wherein the low aspect ratio nanostructures have all dimensions of at least 50 nm.4. (canceled)5. The method of claim 1 , wherein the device has a ...

CATIONIC COLLECTORS WITH MIXED POLYAMIDOAMINES AND METHODS FOR MAKING AND USING SAME

Compositions that include a polyamidoamine, aqueous mixtures that include the polamidoamine and an ore, and methods for making and using same. The composition can include a polyamidoamine having the chemical formula (A). In the chemical formula (A), Rand Rcan be different and can be selected from a saturated or unsaturated, substituted or unsubstituted, linear or branched, cyclic, heterocyclic, or aromatic hydrocarbyl group, Rand Rcan independently be hydrogen or a saturated or unsaturated, substituted or unsubstituted, linear or branched, cyclic, heterocyclic, or aromatic hydrocarbyl group, each m can be an integer of 1 to 5, and n can be an integer of 2 to 8. The aqueous mixture can include an ore, water, and the composition. 2. The composition of claim 1 , wherein:{'sup': '1', 'Ris a C6 to C12 chain having 0 to 3 unsaturated bonds,'}{'sup': '2', 'Ris a C13 to C24 chain having 0 to 3 unsaturated bonds,'}{'sup': 3', '4, 'Rand Rare hydrogen,'}each m is an integer of 2, 3, or 4, andn is an integer of 2, 3, 4, or 5.3. The composition of claim 1 , wherein:{'sup': 1', '2, 'sub': 9', '15', '9', '13', '11', '23', '11', '21', '15', '33', '15', '31', '15', '29', '17', '35', '17', '33', '17', '31', '17', '29, 'Rand Rare selected from CH, CH, CH, CH, CH, CH, CH, CH, CH, CH, or CH,'}{'sup': 3', '4, 'Rand Rare hydrogen,'}each m is 2, andn is 2, 3, or 4.5. The composition of claim 4 , wherein Ris a C10 to C24 chain having 0 to 2 unsaturated bonds claim 4 , and n is 2 claim 4 , 3 claim 4 , or 4.6. The composition of claim 1 , wherein:{'sup': '1', 'Ris a C10 to C24 chain,'}{'sup': '2', 'Ris a C6 to C18 chain,'}{'sup': 3', '4, 'Rand Rare hydrogen,'}each m is 2, andn is 2, 3, or 4.7. The composition of claim 6 , wherein Ris a C12 to C24 chain having 0 to 2 unsaturated bonds and Ris a C6 to C11 chain having 0 to 2 unsaturated bonds.8. The composition of claim 1 , wherein:n is 2 and the polyamidoamine has a hydrophilic-lipophilic balance of about 7.5 to about 12, as measured according ...

METHOD OF SEPARATING SOLIDS USING BIO-OILS

A process for separating a solid having two or more components, at least one of which is lyophobic and at least one of which is lyophilic. The process comprises, in a single step, comminuting a mixture of the solid in a first liquid to which one of the components is lyophilic and to which the other component is lyophobic and in a second liquid which is immiscible with the first liquid and which will wet the lyophobic component to form agglomerates or floes of the lyophobic component and the second liquid in a mill having positive transport capability such that the mill causes the mixture to be transported therethrough. The second liquid comprises a bio-oil, bio-diesel or combination thereof. The agglomerates are then separated from the mixture. This process may be used for beneficiating a coal containing ash. 1. A process for separating a solid having two or more components , at least one of which is lyophobic and at least one of which is lyophilic , comprising:In a single step comminuting a mixture of the solid in a first liquid to which one of the components is lyophilic and to which the other component is lyophobic and in a second liquid which is immiscible with the first liquid and which will wet the lyophobic component to form agglomerates or flocs of the lyophobic component and the second liquid, in a mill having positive transport capability such that the mill causes the mixture to be transported therethrough, wherein the second liquid comprises a bio-oil, bio-diesel or combination thereof; andthereafter, the further step of separating the agglomerates from the mixture.2. The process according to claim 1 , wherein the solid is a coal containing coal and ash components.3. The process as set out in claim 1 , wherein the mill includes a stationary grinding surface and at least one roller adapted to rotate against the grinding surface claim 1 , the roller having at least one helical groove such that rotation of the roller against the grinding surface creates at ...

AMINE-ALDEHYDE RESINS AND USES THEREOF IN SEPARATION PROCESSES

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 in the beneficiation of value materials (e.g., bitumen, coal, or kaolin clay) to remove impurities such as sand. The resins are also useful for treating aqueous liquid suspensions to remove solid particulates, as well as for removing metallic ions in the purification of water. 1. A method for beneficiation of an ore , comprising:adding a urea-formaldehyde resin to an aqueous slurry comprising an ore to produce a mixture, wherein the urea-formaldehyde resin has a number average molecular weight of about 400 to about 4,000, and wherein the mixture comprises about 400 grams to about 1,000 grams of the urea-formaldehyde resin per metric ton of the ore;forcing air through the mixture to form a hydrophilic fraction in the mixture; andseparating a product comprising a mineral or metal from the hydrophilic fraction.2. The method of claim 1 , wherein the mineral or metal comprises phosphate claim 1 , potash claim 1 , lime claim 1 , sulfate claim 1 , gypsum claim 1 , iron claim 1 , platinum claim 1 , gold claim 1 , palladium claim 1 , titanium claim 1 , molybdenum claim 1 , copper claim 1 , uranium claim 1 , chromium claim 1 , tungsten claim 1 , manganese claim 1 , magnesium claim 1 , lead claim 1 , zinc claim 1 , clay claim 1 , coal claim 1 , silver claim 1 , graphite claim 1 , nickel claim 1 , bauxite claim 1 , borax claim 1 , or borate.3. The method of claim 1 , wherein the mineral or metal comprises phosphate claim 1 , iron claim 1 , copper claim 1 , or coal.4. The method of claim 1 , wherein the mineral or metal comprises iron.5. The method of claim 1 , wherein the urea-formaldehyde resin has a number average molecular weight of about 400 to about 1 claim 1 ,200 claim 1 , and wherein the mixture comprises about 400 grams to about 600 ...

Process for the removal of contamination from a raw material

The present invention relates to a process for the removal of contamination from a raw material comprising a desirable material, such as chitin and/or chitosan. The process comprises mixing a raw material with a liquid, wherein the raw material comprises at least one contaminant and at least one desirable material, and wherein the at least one desirable material is capable of absorbing the liquid; and allowing the at least one contaminant and at least one desirable material to separate in a separation container.

METHOD OF SEPARATING BEADS IN A FLUIDIC CHIP

The present invention provides a method of separating beads in a fluidic chip comprising an internal fluid circuit through which various reactants, in which at least one of the reactants are beads, may be moved by use of centrifugal force, the method comprises the steps of: providing at least a first set of beads (a) having a density m and a second set of beads (b) having a density m in a section () of the fluid circuit, the section comprising at least a first outlet (); providing a first liquid medium in the section, the liquid medium having a density d such that m Подробнее

Method of Separating Anion and Cation Exchange Resins and Device for the Same

A method is provided for separating anion and cation exchange resins. The specific-gravity difference between the anion and cation exchange resins is used for separation with a column body. The column body comprises an outer column and an inner column set within. The inner column has an outlet with position adjustable for outputting the anion exchange resin according to its ratio. The flow zone and the resin expansion zone can effectively shorten the time required for the separation. Besides, the required equipment is simplified. Only the size of the column body needs to be adjusted according to the amount of the mixed bed resin to-be-treated. The present invention can be applied to different proportions of mixed beds and mixed resins. On consideration of equipment cost and operating cost, the method can complete the separation of the anion and cation exchange resins in a short time with the simplified equipment. 1. A method of separating anion and cation exchange resins , comprising steps of: wherein said separator apparatus comprises a column body; a solid-liquid separator connecting to said column body; and a separated-product receiver connecting to said column body and said solid-liquid separator;', 'wherein said column body comprises an outer column and an inner column, said inner column being movably disposed in said outer column with a height position adjustable;', 'wherein said outer column has a resin inlet on top; a fluid inlet at bottom; and a first outlet on the wall of said outer column adjacent to bottom;', 'wherein said inner column is a second outlet; and', 'wherein said mixed bed resin is fed in from said resin inlet to process rough separation for the first time through gravitational settling;, '(a) obtaining a column separator apparatus to separate a mixed bed resin,'} 'wherein a layer of said cation exchange resin is expanded to 2˜2.5 times to original volume; a layer of said anion exchange resin is expanded to 3.8˜5.3 times to original volume; ...

APPARATUS, SYSTEM, AND METHOD FOR COLLECTING A TARGET MATERIAL

This disclosure is directed to an apparatus, system and method for retrieving a target material from a suspension. A system includes a plurality of processing vessels and a collector. The collector funnels portions of the target material from the suspension through a cannula and into the processing vessels. Sequential density fractionation is the division of a sample into fractions or of a fraction of a sample into sub-fractions by a step-wise or sequential process, such that each step or sequence results in the collection or separation of a different fraction or sub-fraction from the preceding and successive steps or sequences. In other words, sequential density fractionation provides individual sub-populations of a population or individual sub-sub-populations of a sub-population of a population through a series of steps. 1. A system for retrieving a target material from a sample stored in a primary vessel , the system comprising:a plurality of processing vessels;a collector having a first opening in fluid communication with an opposing second opening, the collector dimensioned to fit within an opening of the primary vessel; anda plurality of displacement fluids, each of the plurality of displacement fluids to be placed in different processing vessels, wherein when each processing vessel is inserted in the first opening, centrifugation of the primary vessel, collector, and each processing vessel causes each displacement fluid to exchange places with a sub-fraction of a sample fraction via the collector.2. The system of claim 1 , at least one of the plurality of displacement fluids to have a density greater than the target material.3. The system of claim 2 , at least one of the plurality of displacement fluids to have a density less than the target material.4. The system of claim 1 , the plurality of displacement fluids comprising:a first displacement fluid to displace a first sub-fraction of the sample fraction into a first processing vessel; anda second ...

METHOD FOR CONTROLLING THE SEDIMENTATION OF A MINING DERIVATIVE

The invention relates to a method for controlling the sedimentation of an aqueous mineral suspension of a mining derivative by means of the gravimetric concentration of the aqueous suspension in the presence of a flocculating agent and a polymer (P) which has a GPC-measured molecular mass Mw of between 2000 and 20000 g/mol and is prepared using at least one free radical polymerisation reaction of at least one anionic monomer (M). 1. A method for controlling a settling of an aqueous mineral suspension comprising a flocculating agent and with a dry solids content that is greater than 10% by weight of the aqueous mineral suspension , selected from the group consisting of:an aqueous metal ore residue,an aqueous suspension of metal ore andan aqueous suspension of useable metal or of a useable metal derivative and derived from metal ore,{'sup': II', 'III', 'I', 'II, 'the method comprising gravimetrically concentrating the aqueous suspension in the presence of at least one polymer (P) with a molecular mass Mw, measured by GPC, ranging from 2,000 to 20,000 g/mol and prepared by at least one radical polymerisation reaction, at a temperature greater than 50° C., of at least one anionic monomer (M) comprising a polymerisable olefinic unsaturation and a carboxylic acid group or one of its salts, in the presence of at least one radical-generating compound selected from the group consisting of hydrogen peroxide, benzoyl peroxide, acetyl peroxide, laurel peroxide, tert-butyl hydroperoxide, cumene hydroperoxide, ammonium persulphate, an alkaline metal persulphate, an azo compound and their respective combinations or associations with an ion selected from the group consisting of Fe, Fe, Cu, Cuand mixtures thereof.'}2. The method according to claim 1 , wherein the aqueous mineral suspension has a dry solids content:greater than 15% by weight;greater than 10% by weight and less than 20% by weight; andranging from 10 to 50% by weight.3. The method according to claim 1 , wherein the ...

SILVER PARTICLES MANUFACTURING METHOD

A silver particles manufacturing method comprises following steps: providing a silver containing compound; providing an organic solution; adding the silver containing compound into the organic solution, to perform ultrasonic vibrations or a heating process until the silver containing compound is dissolved completely into the organic solution, to form a silver ion solution; performing the ultrasonic vibrations or the heating process, and then let the solution settle down for a period, to form a silver particles synthesized solution; and placing the silver particles synthesized solution into a centrifuge to perform centrifugation and separation, to obtain μm-scale silver particles and nm-scale silver particles. The silver particles manufacturing method has the advantages of low pollution, low cost, high yield, and mass production. 1. A silver particles manufacturing method , comprising following steps:providing a silver containing compound;providing an organic solution;adding the silver containing compound into the organic solution, to perform ultrasonic vibrations or a heating process until the silver containing compound is dissolved completely into the organic solution, to form a silver ion solution;performing the ultrasonic vibrations or the heating process, and then let the solution settle down for a period, to form a silver particles synthesized solution; andplacing the silver particles synthesized solution into a centrifuge to perform centrifugation and separation, to obtain μm-scale silver particles and nm-scale silver particles.2. The silver particles manufacturing method as claimed in claim 1 , wherein the silver containing compound is silver nitride (AgNO) powder.3. The silver particles manufacturing method as claimed in claim 1 , wherein the organic solution is N-Methyl Pyrrolidone (NMP) solution.4. The silver particles manufacturing method as claimed in claim 1 , wherein silver ion concentration of the silver ion solution is 0.001M to 10M.5. The silver ...

ASH MANAGEMENT TRENCH

An ash management trench system is provided for harvesting byproducts from sluice water, such as a discharge from a power plant. The system comprises a first section comprising at least one flow control structure. The at least one flow structure is typically configured to capture a predetermined byproduct. The system further comprises a second section comprising a stilling basin. The second section is coupled to the first section by a connection structure. 1. An ash management trench system for harvesting byproducts , the system comprising:a first section comprising at least one flow control structure to capture a predetermined first byproduct; anda second section comprising a stilling basin, the second section being coupled to the first section, wherein the stilling basin is structured for separation and settling of a predetermined second byproduct;wherein the at least one flow control structure comprises a mesh screen, having a plurality of apertures of a predetermined dimension so as to prevent the predetermined first byproducts with a dimension greater than the predetermined dimension from passing through the at least one flow control structure; anda casting area, wherein the casting area is structured to store excavated predetermined first and second byproducts received from the first section or the second section.2. The system of further comprises a separator dam.3. The system of further comprises a geotextile layer.4. The system of claim 1 , wherein the first section is constructed out of a solid construction material claim 1 , wherein the solid construction material is lined with at least one of a roughly-textured surface configured to capture byproducts and/or at least one smoothly-textured surface configured to allow uninhibited flow of sluice waters.5. The system of further comprises a flexible high density polyethylene membrane liner claim 1 , wherein the flexible high density polyethylene membrane liner is installed along limits of at least one of the ...

METHODS FOR SORTING NANOTUBES BY ELECTRONIC TYPE

A method of separating carbon nanotubes by electronic type includes centrifuging a carbon nanotube composition in contact with a first fluid medium comprising a first density gradient; and separating the carbon nanotube composition into two or more separation fractions. The carbon nanotube composition comprises two or more non-ionic amphiphilic surface active components and a carbon nanotube population comprising double-walled carbon nanotubes having a semiconducting outer wall (s-DWCNTs), and double-walled carbon nanotubes having a metallic outer wall (m-DWCNTs). The two or more separation fractions comprise a first separation fraction comprising a carbon nanotube subpopulation comprising a higher percentage of s-DWCNTs than the carbon nanotube population, and a second separation fraction comprising a carbon nanotube subpopulation comprising a higher percentage of m-DWCNTs than the carbon nanotube population. 1. A method of separating carbon nanotubes by electronic type , the method comprising:centrifuging a carbon nanotube composition in contact with a first fluid medium comprising a first density gradient; andseparating the carbon nanotube composition into two or more separation fractions,wherein the carbon nanotube composition comprises two or more non-ionic amphiphilic surface active components and a carbon nanotube population comprising double-walled carbon nanotubes having a semiconducting outer wall (s-DWCNTs), and double-walled carbon nanotubes having a metallic outer wall (m-DWCNTs); andwherein the two or more separation fractions comprise a first separation fraction comprising a carbon nanotube subpopulation comprising a higher percentage of s-DWCNTs than the carbon nanotube population, and a second separation fraction comprising a carbon nanotube subpopulation comprising a higher percentage of m-DWCNTs than the carbon nanotube population.2. The method of claim 2 , wherein the two or more surface active components comprise a planar surface active ...

DEVICE AND METHOD FOR MAGNETIC SEPARATION

The invention relates to an apparatus for removing magnetizable particles in a substance, the apparatus comprising a magnetic separation chamber for filtering magnetizable particles and flocs from the substance, wherein the magnetic separation chamber comprises a first housing that defines a first space through which the substance can flow, as well as at least one first magnet of which a first magnetic field reaches into the first space, and which first magnet is located within a first holder that has an interface with the first space; and a flocculation chamber for inducing flocculation of the particles in a substance, the flocculation chamber being in fluid connection with the magnetic separation chamber; wherein the magnetic separation chamber is located downstream of the flocculation chamber, and wherein the flocculation of the magnetizable particles results in magnetizable flocs, and the magnetic field of the first magnet causes the magnetizable flocs to be attracted towards the first magnet, thereby removing the flocs of magnetizable particles from the substance. 1. An apparatus for removing magnetizable particles in a substance , the apparatus comprising:a magnetic separation chamber for filtering magnetizable particles and flocs from the substance, wherein the magnetic separation chamber comprises a first housing that defines a first space through which the substance can flow, as well as at least one first magnet of which a first magnetic field reaches into the first space, and which first magnet is located within a first holder that has an interface with the first space; anda flocculation chamber for inducing flocculation of the particles in the substance, the flocculation chamber being in fluid connection with the magnetic separation chamber,characterized in that the flocculation chamber comprises a second housing that defines a second space through which the substance can flow, as well as at least one second magnet which is located within a second holder ...

METHOD OF PREPARING A WATER IN OIL EMULSION

A method of preparing a water in oil emulsion comprises forming a mixture of oil and emulsifying agent, progressively adding an aqueous salt solution to the mixture and dispersing the aqueous salt solution into the mixture. A concentrated water in oil emulsion is formed with drops of the aqueous salt solution () packed inside the oil solution phase (). The emulsion is added to water and then mixed so that the emulsion absorbs the water. The salt concentration of the emulsion relative to the salt concentration of the water is controlled. Methods of agglomerating fine hydrophobic particles in a slurry using the water in oil emulsion are provided, where the emulsion is added to the slurry and then mixed so that the emulsion absorbs the water in the slurry. The salt concentration of the emulsion relative to the salt concentration of the slurry is controlled. 1. A method of preparing a water in oil emulsion , comprising:forming a mixture of oil and emulsifying agent;progressively adding an aqueous salt solution to said mixture and dispersing said aqueous salt solution into said mixture, thereby forming a concentrated water in oil emulsion with drops of said aqueous salt solution packed inside the oil solution phase;adding said emulsion to water; andmixing said emulsion and said water so that said emulsion absorbs said water; andcontrolling the salt concentration of said emulsion relative to the salt concentration of said water.2. The method of claim 1 , wherein the salt concentration of said aqueous salt solution in said emulsion is greater than the salt concentration of said water.3. The method of claim 1 , wherein the salt concentration of said aqueous salt solution in said emulsion is less than the salt concentration of said water.4. The method of claim 1 , wherein said emulsion forms into smaller portions as a result of mixing said water and said emulsion.5. The method of claim 1 , wherein the salt concentration of said aqueous salt solution in said emulsion is below ...

SYSTEM AND METHOD FOR REMOVAL OF SCALE FORMING COMPONENTS

A method includes supplying a supersaturated brine stream having a plurality of minerals and anti-scalant from a water treatment system to a gypsum removal system disposed within a mineral removal system. The gypsum removal system includes a gypsum reactor that may receive the supersaturated brine, may deactivate the anti-scalant such that gypsum precipitates from the supersaturated brine, and may generate a gypsum slurry having a mixture of desupersaturated brine, precipitated gypsum, and the anti-scalant in solution with the desupersaturated brine. The method also includes supplying gypsum seed crystals to the gypsum reactor. The gypsum seed crystals may precipitate the gypsum from the supersaturated brine to generate the gypsum slurry. The method also includes directing a first portion of the gypsum slurry from the gypsum reactor to a gypsum settler. The gypsum settler may reactivate the anti-scalant such that the anti-scalant absorbs onto the precipitated gypsum to remove the anti-scalant from the desupersaturated brine and may generate anti-scalant-gypsum crystals and a desupersaturated overflow having at least a portion of the plurality of minerals. The method further includes generating the gypsum seed crystals supplied to the gypsum reactor using the anti-scalant-gypsum crystals. 1. A system , comprising:a gypsum reactor configured to receive a supersaturated brine stream comprising a plurality of minerals and an anti-scalant, wherein the plurality of minerals comprises gypsum, the gypsum reactor is configured to deactivate the anti-scalant such that gypsum precipitates from the supersaturated brine and the gypsum reactor is configured to generate a gypsum slurry having a mixture of a desupersaturated brine, precipitated gypsum, and the anti-scalant in solution with the desupersaturated brine; anda gypsum settler disposed downstream from and fluidly coupled to the gypsum reactor, wherein the gypsum settler is configured to receive a first portion of the ...

A method of purifying metal oxide particles and uses thereof

A method of purifying a plurality of metal oxide particles produced from a synthesis process is disclosed. The method comprises the step of washing a plurality of metal oxide particles in a first solvent composition comprising of at least one aliphatic ether, and at least one flocculant. In one embodiment, the plurality of metal oxide particles are iron oxide particles produced from a thermal decomposition synthesis process between an iron-oleate complex and oleic acid in 1-octadecene, wherein the first solvent composition comprises a 1:1 (vol/vol) ratio of an aliphatic ether in the form of diethyl ether and a flocculant in the form of methanol. The washed iron oxide particles are further washed in a second solvent composition comprising a 1:1 (vol/vol) ratio of hexane and ethanol, and then finally dispersed in hexane. The resulting iron oxide particles find use as a contrast agent for magnetic resonance imaging (MRI) or as magnetic particles in magnetic separation, magnetism-directed targeting or magnetism-induced heating.

METHOD FOR TREATING SUSPENSIONS OF SOLID PARTICLES IN WATER USING AMPHOTERIC POLYMERS

The invention relates to a method for treating an aqueous suspension of solid mineral particles arising from the extraction of ores, comprising the following steps: a soluble polymer is prepared in water, comprising: o at least one non-ionic monomer, selected from the group consisting of acrylamide; methacrylamide; N-monoderivatives of acrylamide; N-monoderivatives of methacrylamide; N,N-derivatives of acrylamide; N,N-derivatives of methacrylamide; acrylic esters; methacrylic esters; N-vinylformamide; and N-vinylpyrrolidone; o at least one anionic monomer representing between 10 and 70 mol %, selected from the group consisting of monomers having a carboxylic functional group and salts thereof; monomers having a sulphonic acid functional group and salts thereof; monomers having a phosphonic acid functional group and salts thereof; o at least one cationic monomer representing between 0.2 and 6 mol %, selected from the group consisting of diallyl dimethylammonium chloride, methacrylamidopropyltrimethylammonium chloride and acrylamidopropyltrimethylammonium chloride; adding said soluble polymer into the water having the aqueous suspension of solid particles. This method is particularly useful for treating residues resulting from the extraction of bituminous sand. 1. A method for treating an aqueous suspension of solid mineral particles arising from the extraction of ores , comprising adding into the aqueous suspension of solid mineral particles a: at least one non-ionic monomer selected from the group consisting of acrylamide; methacrylamide; N-monoderivatives of acrylamide; N-monoderivatives of methacrylamide; N,N-derivatives of acrylamide; N,N-derivatives of methacrylamide; acrylic esters; methacrylic esters; N-vinylformamide; and N-vinylpyrrolidone;', 'at least one anionic monomer representing between 10 and 70 mol %, selected from the group consisting of monomers having a carboxylic functional group and salts thereof; monomers having a sulfonic acid functional group ...

System and method for the treatment of wastewater

A system and method for the treatment of wastewater. In one aspect, the invention can be a method of treating wastewater comprising: a) introducing wastewater having a first turbidity level into a wastewater treatment system; b) injecting an aqueous polymer mixture into the wastewater to flocculate suspended solids within the wastewater; and c) removing the flocculated suspended solids from the wastewater to form a treated water having a second turbidity, the second turbidity being lower than the first turbidity.

PORTABLE TEST-DEVICE FOR SELECTIVE FLOCCULATION

This disclosure relates generally to selective flocculation, and more particularly to portable test-device for performing selective flocculation experiments in continuous mode. The test-device includes a slurry inflow system, a flocculant tank, a static mixer, a control pumping system, and a thickener system. The static mixer is connected to the slurry inflow system and the flocculant tank, to receive and mix flocculant solution and slurry and cause formation of floc. The control pumping system connects the flocculant tank and the slurry inflow system to the static mixer to control the control parameters responsible for pumping the slurry and flocculant solution in the continuous mode in the static mixer. The thickener system comprises a thickener tank to receive treated slurry and the floc from the static mixer, separately collect tailings and the floc from the thickening tank. The components of the portable test-device are removably connected to each other. 1. A portable test-device for performing selective flocculation experiments in continuous mode , the test-device comprising:a slurry inflow system adapted to receive slurry, the slurry inflow system comprising a first static mixer capable of being removably connected to slurry pipes, the slurry pipes capable of carrying slurry from a plant;a flocculant tank capable of storing a flocculant solution, the flocculant solution capable of causing formation of floc when mixed with the slurry;a second static mixer removably connected to the first static mixer and the flocculant tank, and capable of in-line mixing the flocculant solution and the slurry, to cause formation of the floc and tailings, the second static mixer comprising a plurality of mixing elements configured to divide and rotate a fluid comprising the flocculant solution and the slurry in a plurality of flow-directions, wherein the second static mixer is adapted to minimize dead zones encountered in the mixing of the flocculant solution and the slurry;a ...

SEPARATOR THAT REMOVES FREE LIQUID AND PARTICLES FROM A GAS STREAM

A separator includes a shell: adapted to be vertically oriented in use; a combined wet gas feedstock ingress and separated liquid egress at the bottom of the shell; a separated gas egress at the top of the shell; a first permeable, fluid flow barrier disposed within the shell at the bottom end thereof proximate the ingress and comprising a first medium; a second permeable, fluid flow barrier disposed within the shell atop and proximate to the first barrier and comprising a second medium; and a third permeable, fluid flow barrier dispose within the shell at the top thereof proximate the egress and comprising the first medium, the third barrier being dispose such that there is a gap between the second and third barriers. 1. A separator , comprising:a shell adapted to be vertically oriented in use;a combined wet gas feedstock ingress and separated liquid egress at the bottom of the shell;a separated gas egress at the top of the shell;a first permeable, fluid flow barrier disposed within the shell at the bottom end thereof proximate the ingress and comprising a first medium;a second permeable, fluid flow barrier disposed within the shell atop and proximate to the first barrier and comprising a second medium; anda third permeable, fluid flow barrier dispose within the shell at the top thereof proximate the egress and comprising the first medium, the third barrier being dispose such that there is a gap between the second and third barriers.2. The separator of claim 1 , wherein the shell is cylindrically shaped.3. The separator of claim 1 , wherein the first and third barriers comprise a metal mesh.4. The separator of claim 3 , wherein the wire mesh includes a stainless steel mesh.5. The separator of claim 1 , wherein the second barrier comprises a plurality of pall rings.6. A method for separating gas from liquid in a pressurized wet gas feedstock claim 1 , comprising:feeding the wet gas feedstock upward through a first port at the bottom of a shell;passing the wet gas ...

CLAY FLOTATION OF TAILINGS

A process for treating and dewatering tailings comprising fine clay minerals, fine silt minerals and water is provided, comprising treating the tailings with a sufficient amount of a clay surface reagent to selectively modify the surface properties of the fine clay minerals; subjecting the treated tailings to froth flotation to float a portion of the fine clay minerals and form a clay froth layer and froth flotation tails having a reduced fine clay minerals content; and recovering the clay froth layer and subjecting it to dewatering. 1. A process for treating and dewatering tailings comprising fine clay minerals , fine silt minerals and water , comprising:(a) treating the tailings with a sufficient amount of a clay surface reagent to selectively modify the surface properties of the fine clay minerals;(b) subjecting the treated tailings to froth flotation to float a portion of the fine clay minerals and form a clay froth layer and froth flotation tails having a reduced fine clay minerals content; and(c) recovering the clay froth layer and subjecting it to dewatering.2. The process as claimed in claim 1 , wherein the clay froth layer is dewatered by drainage and air drying.3. The process as claimed in claim 1 , further comprising:(d) dewatering the froth flotation tails by subjecting the froth flotation tails to liquid solids separation to yield a solids product for reclamation.4. The process as claimed in claim 1 , wherein the clay surface reagent is a cationic collector selected from the group consisting of dodecylamine (DDA) claim 1 , docecylamine hydrochloride (DDAHCl) claim 1 , docecyl-trimethylammonium chloride (DTAC) and cetyl-trimethylammonium bromide (CTAB).5. The process as claimed in claim 1 , further comprising pre-treating the tailings with a flocculant claim 1 , a coagulant or both selective for clay minerals prior to treatment with the clay surface reagent.6. The process as claimed in claim 5 , wherein the flocculant is an anionic polyacylamide.7. The ...

Oil Extraction Method and Composition For Use In The Method

A composition is disclosed for aiding extraction of an emulsified oil from an oil and water emulsion. The composition includes silicon containing particles at a level of 0.1 wt. % to 30 wt. %; an emulsifying agent at a level of 1 wt. % to 30 wt. %; and water at a level of 40 wt. % to 99 wt. %. A method of extracting oil from an oil and water emulsion in a material is also disclosed. The method includes the steps of (a) dispersing silicon containing particles into the material using a mechanical blending device; and (b) separating the oil from the material. A method of extracting oil from an oil and water emulsion in a material is also disclosed. The method includes the steps of (a) providing a dispersion of silicon containing particles in water; (b) metering the dispersion into the material; and (c) separating the oil from the material. 1. A composition for aiding extraction of an emulsified oil from an oil and water emulsion , the composition comprising:silicon containing particles at a level of greater than 5 wt. %;a polysorbate; andwater,wherein the silicon containing particles are dispersed in the water.2. The composition of wherein:the silicon containing particles are present at greater than 5 wt. % to 30 wt. %.3. The composition of wherein:the silicon containing particles are selected from the group consisting of silica, talc, clay, quartz, diatomaceous earth, and mixtures thereof.4. The composition of wherein:the silicon containing particles are hydrophobic.5. The composition of wherein:the silicon containing particles have an average particle size of less than 100 micrometers.6. The composition of wherein:the silicon containing particles have an average particle size of less than 50 micrometers.7. The composition of wherein:the silicon containing particles have an average particle size of less than 20 micrometers.8. A method of extracting oil from an oil and water emulsion in a material claim 1 , the method comprising:(a) creating a dispersion of hydrophobic ...

Multiphase Systems and Uses Thereof

A multi-phase system includes a phase-separated solution comprising at least two phases, each phase having a phase component selected from the group consisting of a polymer, a surfactant and combinations thereof, wherein at least one phase comprises a polymer, wherein the phases, taken together, represent a density gradient. Novel two-phase, three-phase, four-phase, five-phase, or six-phase systems are disclosed. Using the disclosed multi-phase polymer systems, particles, or other analyte of interest can be separated based on their different densities or affinities. 1. A method of analyzing or separating a sample comprising: the at least two phases each comprises a phase component selected from the group consisting of a polymer, a surfactant and combinations thereof, wherein at least one phase comprises a polymer;', 'each said phase has an upper and a lower phase boundary; and', 'each of the two or more phases has a different density and the phases, taken together, represent a density gradient; and, 'providing a phase-separated system comprising at least two phases, wherein'}b) introducing a sample comprising one or more analytes of interest to the multi-phase system without disrupting the phase-separated solution; andc) allowing each of the analytes to migrate to a location in the phase-separated system that is characteristic of its density, wherein during migration the sample contacts one or more of the two or more phases sequentially.2. The method of claim 1 , wherein greater than 80% of the analyte is located at one or more of the phase boundaries.3. The method of claim 1 , wherein greater than 90% of the analyte is located at one or more of the phase boundaries.4. The method of claim 1 , wherein the sample comprises a plurality of analytes and each analyte migrates to a different location in the phase-separated system.5. The method of claim 1 , wherein after migration claim 1 , the analyte resides at a boundary location.6. The method of claim 1 , wherein the ...

METHOD AND APPARATUS FOR SEPARATING LIGNOCELLULOSE PARTICLE FRACTION AND LIGNIN PARTICLE FRACTION, LIGNIN PARTICLE COMPOSITION, LIGNOCELLULOSE PARTICLE COMPOSITION AND THEIR USE

The invention relates to a method and an apparatus for separating lignocellulose particle fraction () and lignin particle fraction (), in which crude lignin () formed from starting material () comprises lignocellulose particles and lignin particles. According to the invention, the method comprises adding stabilizing chemical () and/or hydrophobic chemical () into the crude lignin () in at least one step, and treating the crude lignin by separating the lignin particle fraction () and lignocellulose particle fraction () from each other in at least one separation step (). Further, the invention relates to a lignocellulose particle fraction and a lignin particle fraction and their uses. 14. A method for separating a lignocellulose particle fraction and a lignin particle fraction () from crude lignin , the method comprising:adding a stabilizing chemical and/or a hydro-phobic chemical into the crude lignin in at least one step, andseparating the lignin particle fraction and the lignocellulose particle fraction from the crude lignin in at least one separation step.2. The method according to claim 1 , wherein the at least one separation step is more than one separation step.3. The method according to claim 1 , wherein the at least one separation includes application of centrifugal forces claim 1 , sedimentation claim 1 , elutriation claim 1 , aggregation claim 1 , flotation claim 1 , flocculation claim 1 , screening claim 1 , or any combination thereof.4. The method according to claim 1 , wherein the crude lignin is formed by hydrolysis.5. The method according to claim 1 , wherein the stabilizing chemical is polysaccharide.6. The method according to claim 1 , wherein the hydrophobic chemical includes diesel oil claim 1 , biodiesel oil claim 1 , fuel oil claim 1 , bio fuel oil claim 1 , kerosene claim 1 , biokerosene claim 1 , other middle distillate fraction claim 1 , or any combination thereof.743. The method according to claim 2 , wherein the lignin particle fraction () ...

SYSTEMS AND METHODS FOR SEPARATING SURFACE MATERIALS FROM A FLUID USING ACOUSTIC PRESSURE SHOCK WAVES

A method of separating material, such as foam, sludge, oil or grease, at a fluid's surface, by applying acoustic pressure shock waves to the material and the fluid's surface such that acoustic pressure shock waves are propagated in liquid medium of the fluid and in gas medium above the fluid surface.

Systems and methods for activating and dewatering sludge using acoustic pressure shock waves

A method of activating and dewatering sludge through application of acoustic pressure shock waves to wastewater.

Sorting Two-Dimensional Nanomaterials by Thickness

The Present teachings provide, in part, methods of separating two-dimensional nanomaterials by atomic layer thickness. In certain embodiments, the present teachings provide methods of generating graphene nanomaterials having a controlled number of atomic layer(s).

Oil Extraction Method and Composition For Use In The Method

A composition is disclosed for aiding extraction of an emulsified oil from an oil and water emulsion. The composition includes silicon containing particles at a level of 0.1 wt. % to 30 wt. %; an emulsifying agent at a level of 1 wt. % to 30 wt. %; and water at a level of 40 wt. % to 99 wt. %. A method of extracting oil from an oil and water emulsion in a material is also disclosed. The method includes the steps of (a) dispersing silicon containing particles into the material using a mechanical blending device; and (b) separating the oil from the material. A method of extracting oil from an oil and water emulsion in a material is also disclosed. The method includes the steps of (a) providing a dispersion of silicon containing particles in water; (b) metering the dispersion into the material; and (c) separating the oil from the material. 1. A composition for aiding extraction of an emulsified oil from an oil and water emulsion , the composition comprising:silicon containing particles;an emulsifying agent selected from the group consisting of fatty alcohol alkoxylates and fatty acid alkoxylates; andwater.2. The composition of wherein:the silicon containing particles are present at a level of 0.1 wt. % to 30 wt. %;the emulsifying agent is present at a level of 1 wt. % to 30 wt. %; andwater is present at a level of 40 wt. % to 99 wt. %.3. The composition of wherein:the silicon containing particles are present at greater than 5 wt. % to 15 wt. %;the emulsifying agent is present at a level of 4 wt. % to 15 wt. %; andwater is present at a level of 70 wt. % to 90 wt. %.4. The composition of wherein:the silicon containing particles are selected from the group consisting of silica, talc, clay, quartz, diatomaceous earth, and mixtures thereof.5. The composition of wherein:the silicon containing particles are precipitated silica particles.6. The composition of wherein:the silicon containing particles are hydrophilic.7. The composition of wherein:the silicon containing particles ...

METHOD AND APPARATUS FOR WASHING AND GRADING SAND

An apparatus for washing and grading sand includes a first vibrating screen having a deck arranged to receive a feed material. Oversize material passes over the deck of the first vibrating screen for collection as a first product, and undersize material and water are collected in a sump of the first vibrating screen before being pumped to a hydrocyclone. A second vibrating screen receives an underflow from the hydrocyclone upon a deck thereof, with oversize material passing over the deck of the second vibrating screen for collection as a second product. An overflow from the hydrocyclone passes into a settling tank, and a water storage reservoir receives water overflowing from the settling tank while sludge is collected and removed from a lower end of the settling tank. Water is passed from the water storage reservoir to the first and second vibrating screens to wash and fluidise material thereon. 1. A method of washing and grading particulate material comprising:washing and grading a feed material on a first vibrating screen;collecting oversize material from the first vibrating screen as a first product and collecting undersize material and water from the first vibrating screen in a first sump;pumping the undersize material and water from the first sump into a first hydrocyclone, thereby removing fine contaminants from the material;passing the underflow from the first hydrocyclone onto a second vibrating screen, and collecting oversize material from the second vibrating screen as a second product;passing the overflow from at least the first hydrocyclone into a settling tank, and collecting sludge in a lower end of the settling tank and removing the sludge therefrom; andcollecting water overflowing from the settling tank into a water storage reservoir and delivering water from the storage reservoir to the first and second vibrating screens.2. The method of claim 1 , comprising adding a portion of the overflow from at least the first hydrocyclone to the sump of the ...

Selective Flocculants for Mineral Ore Benefication

Selective flocculants comprise a polymer comprising recurring units of one or more acrylamide monomers; recurring units of one or more monomers selected from hydroxyalkyl alkylacrylate, allyloxyalkyldiol, allyloxyethanol, trimethylolpropane allyl ether, and 2-hydroxy ethyl acrylate; and optionally, recurring units of one or more acrylic acid monomers. Also disclosed are processes for enriching a desired mineral from an ore comprising the desired mineral and gangue, wherein the process comprises carrying out a selective flocculation process in the presence of one or more of the selective flocculants. 1. A selective flocculant comprising a polymer comprising: a) recurring units of one or more acrylamide monomers; b) recurring units of one or more monomers selected from hydroxyalkyl alkylacrylate , allyloxyalkyldiol , allyloxyethanol , trimethylolpropane allyl ether , and 2-hydroxy ethyl acrylate; and optionally , c) recurring units of one or more acrylic acid monomers.2. The selective flocculant of claim 1 , wherein the polymer comprises recurring units of one or more hydroxyalkyl alkylacrylate monomers.3. (canceled)4. (canceled)5. (canceled)6. The selective flocculant of claim 2 , wherein the one or more hydroxyalkyl alkylacrylate monomers comprise hydroxyethyl methylacrylate.7. (canceled)8. (canceled)9. The selective flocculant of claim 6 , wherein the one or more selective flocculants comprises a polymer consisting essentially of: a) recurring units of one or more acrylamide monomers; b) recurring units of hydroxyethyl methylacrylate monomers; and c) recurring units of one or more acrylic acid monomers.10. (canceled)11. A composition comprising: one or more selective flocculants according to ; and a slovent.12. The composition of claim 11 , wherein the solvent is water.13. A process for enriching a desired mineral from an ore comprising the desired mineral and gangue claim 1 , wherein the process comprises carrying out a flocculation process in the presence of one ...

Selective Polysaccharide Agents and Flocculants for Mineral Ore Beneficiation

Selective polysaccharide agents or flocculants comprise one or more types of polysaccharides comprising one or more types of pentosan units. Also disclosed are processes for enriching a desired mineral from an ore comprising the desired mineral and gangue and/or other minerals, wherein the process comprises treating the ore in an aqueous medium with one or more selective polysaccharide agents or flocculants comprising one or more types of polysaccharides comprising one or more types of pentosan units. 1. A process for enriching a desired mineral or material from an ore having iron-containing material and/or silicate-containing gangue , includes treating the ore in an aqueous medium with one or more selective polysaccharide agents or flocculants comprising one or more types of pentosan units.2. The process of claim 1 , wherein the desired mineral is an iron-containing mineral.3. The process of claim 1 , wherein the gangue comprises oxides of silica claim 1 , silicates or siliceous materials.4. The process of claim 1 , wherein the process comprises the steps of:(i) mixing a ground ore with a solvent to form a mixture;(ii) adding the one or more selective polysaccharide agents or flocculants to the mixture;(iii) agitating the mixture to distribute the selective polysaccharide agents or flocculants;(iv) allowing flocs to form; and(v) isolating the flocs.5. The process of claim 1 , wherein the one or more selective flocculants are added to tailings streams.6. A process for enriching claim 1 , or facilitating recovery of claim 1 , a desired mineral from a tailings stream comprising the desired mineral and gangue and/or other minerals claim 1 , wherein the process comprises treating the tailings stream with one or more selective polysaccharide agents or flocculants comprising one or more types of polysaccharides comprising one or more types of pentosan units.7. The process of claim 6 , wherein the tailings stream is a tailings stream of a desliming process.8. The process ...

유체칩 중의 비드의 분리 방법

본 발명은 적어도 하나의 반응물이 비드(bead)인 각종 반응물이 원심력의 사용에 의해 이동될 수도 있는 내부 유체 회로를 포함하는 유체칩 중의 비드의 분리 방법을 제공하고, 상기 방법은: 유체 회로의 섹션(7, 15, 18) 중에 적어도 밀도 m1의 제 1 비드 세트(8a) 및 밀도 m2의 제 2 비드 세트(8b)를 제공하는 단계로서, 섹션은 적어도 제 1 출구(16, 13, 17)를 포함하는, 단계; 섹션 중에 제 1 액체 매체를 제공하는 단계로서, 액체 매체는 ml < d3 < m2이도록 밀도 d3을 갖는, 단계; 및 제 1 비드 세트(8a) 및 제 2 비드 세트(8b)가 섹션 내에서 반대 방향으로 이동하도록 제 1 원심력(G)을 가하는 단계를 포함한다.

Selective flocculants for mineral ore beneficiation

Selective flocculants comprise a polymer comprising recurring units of one or more acrylamide monomers; recurring units of one or more monomers selected from hydroxyalkyl alkylacrylate, allyloxyalkyldiol, allyloxyethanol, trimethylolpropane allyl ether, and 2-hydroxy ethyl acrylate; and optionally, recurring units of one or more acrylic acid monomers. Also disclosed are processes for enriching a desired mineral from an ore comprising the desired mineral and gangue, wherein the process comprises carrying out a selective flocculation process in the presence of one or more of the selective flocculants.

Apparatus and method for preparing polymer latex resin powder

The present invention relates to an apparatus and a method for preparing a polymer latex resin powder. An aspect of the present invention provides an apparatus for preparing a polymer latex resin powder, comprising a first coagulation tank to which a polymer latex and a coagulant are supplied, wherein the first coagulation tank is provided with a rotation shaft, a stirring part including at least one impeller mounted on the rotation shaft, and a discharge line, and is arranged to operate as a closed system when the stirring part is operated.

Cryo-sedimentation process

Depressants for use in Separation Processes

Methods for removing particulates from an aqueous suspension are provided. In at least one specific embodiment, the method can include mixing a polyamidoamine-epihalohydrin resin with an aqueous suspension comprising one or more first particulates to produce a treated mixture. An amount of the polyamidoamine-epihalohydrin resin in the treated mixture can be less than 500 g/tonne of the one or more first particulates. The method can also include recovering from the treated mixture a purified water having a reduced concentration of the one or more first particulates relative to the aqueous suspension, a purified first particulate product having a reduced concentration of water relative to the aqueous suspension, or both.

ALUMINA RECOVERY PROCESS

SUIVANT LE PROCEDE DE L'INVENTION, DES SUSPENSIONS AQUEUSES DE BOUES ROUGES SONT EFFICACEMENT ENLEVEES DU PROCEDE BAYER POUR LA FABRICATION D'ALUMINE PAR L'ADDITION, AU MOINS AU PREMIER STADE DU CIRCUIT DE RECUPERATION PAR BASE CAUSTIQUE, D'UN FLOCULANT CHOISI PARMI L'AMIDON, DES HOMOPOLYMERES D'ACIDE ACRYLIQUE OU D'ACRYLATES, DES COPOLYMERES D'ACIDE ACRYLIQUE OU D'ACRYLATES CONTENANT AU MOINS 80MOLES POUR CENT DE MONOMERES D'ACIDE ACRYLIQUE OU D'ACRYLATE ET LEURS COMBINAISONS, ET PAR ADDITION SUBSEQUENTE, AUX STADES SUIVANTS, PLUS DILUES, DU CIRCUIT DE RECUPERATION D'UN COPOLYMERE CONTENANT ENVIRON 35 A 75MOLES POUR CENT D'ACIDE ACRYLIQUE OU D'ACRYLATE ET ENVIRON 65 A 25 MOLES POUR CENT DE MONOMERES POLYMERISABLES A INSATURATION ETHYLENIQUE, NOTAMMENT L'ACRYLAMIDE. FOLLOWING THE PROCESS OF THE INVENTION, AQUEOUS RED SLUDGE SUSPENSIONS ARE EFFECTIVELY REMOVED FROM THE BAYER PROCESS FOR THE MANUFACTURE OF ALUMINA BY THE ADDITION, AT LEAST IN THE FIRST STAGE OF THE CAUSTIC-BASED RECOVERY CIRCUIT, FROM A SELECTED FLOCCULANT. STARCH, HOMOPOLYMERS OF ACRYLIC ACID OR ACRYLATES, COPOLYMERS OF ACRYLIC ACID OR ACRYLATES CONTAINING AT LEAST 80 MOLES PERCENT OF ACRYLIC ACID OR ACRYLATE MONOMERS AND THEIR COMBINATIONS, AND BY SUBSEQUENT ADDITION, AT THE FOLLOWING, MORE DILUTE, STAGES OF THE RECOVERY CIRCUIT OF A COPOLYMER CONTAINING ABOUT 35 TO 75 MOLES PERCENT OF ACRYLIC OR ACRYLATE AND ABOUT 65 TO 25 MOLES PERCENT OF POLYMERISABLE MONOMERS WITH ETHYLENIC INSATURATION, IN PARTICULAR ACRYLIC.

在流控芯片中分离珠的方法

本发明提供了在包含内部流体回路的流控芯片中分离珠的方法，其中多种反应物通过所述内部流体回路的移动可以通过使用离心力来实现，其中至少一种反应物是珠，所述方法包括以下步骤：在所述流体回路的节段(7、15、18)中至少提供密度为m1的第一组珠(8a)和密度为m2的第二组珠(8b)，所述节段至少包含第一出口(16、13、17)；在所述节段中提供第一液体介质，所述液体介质的密度为d3，使得m1＜d3＜m2；以及施加第一离心力(G)，使得所述第一组珠(8a)和所述第二组珠(8b)在所述节段内沿相反方向移动。

转移珠的方法

本发明提供了在包含内部流体回路的流控芯片中转移珠的方法，其中多种反应物通过所述内部流体回路的移动可以通过使用离心力来实现，其中至少一种反应物是珠，所述方法包括以下步骤：在所述流体回路的节段(7、15)中提供密度等于或小于m1的珠(8)，所述节段包含至少第一出口(16、13)；向所述节段提供第一液体介质，所述液体介质的密度为d2，使得d2＞m1；以及施加离心力，使得所述珠在所述离心力的相反方向上移动。

Arrangement for purifying waste water

Treatment of iron ore to increase recovery through the use of low molecular weight polyacrylate dispersants

The described invention relates to the processing of iron ore, particularly taconite ore. In particular, the invention relates to the separation of the iron containing component from the silicious and other gangue components such as phosphorus compounds in low grade iron ore. Typically, the separation is accomplished by a flotation process to remove the gangue to recover the iron component.

A process for producing high grade blast furnace feed from poor grade iron ore ultra fines

一种用于从低等级铁矿超细粉生产高等级高炉供料的方法，在于：通过选择性分散来处理超细粉，以将脉石材料与沉淀的铁材料分开；并通过使用非选择性分散剂进行再次分散来处理沉淀的铁材料。通过使用改性淀粉进行选择性絮凝来处理分散后的沉淀材料，以将用于高炉的浓缩铁与尾矿分离，从而使脉石矿物留在分散相中。在使用非选择性分散剂进行再次分散以及为了更好的絮凝而通过旋液分离过程来分离更细的颗粒的过程中，含铁矿物和所述脉石矿物之间的分离过程在特定的pH下基于表面电荷条件来进行，以生产含68％Fe、1％氧化铝和1％二氧化硅的最终产物。

Method of introducing coagulant in the water treatment process

Изобретение может быть использовано в водоподготовке и водоочистке для очистки и обеззараживания питьевой и сточной воды. Способ введения коагулянта включает подачу коагулянта (2) в очищаемую воду, находящуюся в трубопроводе (1), активирование коагулянта путем перемешивания его в воде. При этом в зоне ввода коагулянта в поток по его поперечному сечению создают с помощью лучевого распределителя (3) равномерно распределенные турбулентные струи воды, относительно их подают коагулянт с возможностью, по крайней мере, частичного самозахвата его этими струями и перемещения образованной смеси к следующей зоне (4), где в этой смеси турбулентные струи воды с коагулянтом дробят на решетке (5) на меньшие аналогичные образования с увеличением самозахвата турбулентными струями воды коагулянта (6), образуя активное перемешивание коагулянта в воде. Способ обеспечивает использование энергии потока воды в трубопроводе, с помощью которой осуществляют эффективное перемешивание раствора коагулянта с обрабатываемой водой при малых скоростях потока 0,2-0,5 м/с без дополнительной активации в условиях не принудительного растворения в воде коагулянта. 1 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 657 903 C1 (51) МПК C02F 1/52 (2006.01) C02F 1/72 (2006.01) B03D 3/02 (2006.01) B01D 21/01 (2006.01) C02F 103/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C02F 1/5209 (2006.01); C02F 1/5236 (2006.01); B03D 3/02 (2006.01); B01D 21/01 (2006.01); C02F 2103/02 (2006.01) (21)(22) Заявка: 2017125305, 14.07.2017 14.07.2017 Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 14.07.2017 (56) Список документов, цитированных в отчете о поиске: RU 2165891 C1, 27.04.2001. RU 2 6 5 7 9 0 3 R U Адрес для переписки: 191015, Санкт-Петербург, ул. Кавалергардская, 42, руководителю по интеллектуальной собственности Департамента технологического развития и охраны окружающей среды Мурашеву Сергею Владимировичу 2225846 С2, 20.03.2004. RU 2355648 С1, ...

Method and apparatus for separating lignocellulose particle fraction and lignin particle fraction, lignin particle composition, lignocellulose particle composition and use thereof

FIELD: chemistry.SUBSTANCE: invention relates to a method for separating a lignocellulose particle fraction and a lignin particle fraction, in which crude lignin is formed from starting material, comprising lignocellulose particles and lignin particles, wherein the method includes adding stabilising chemical and/or hydrophobic chemical into the crude lignin in at least one step, so that at least a stabilising agent is added to the crude lignin, wherein said stabilising agent is a polysaccharide or a modified polysaccharide, and treating the crude lignin by separating the lignin particle fraction and the lignocellulose particle fraction from each other in at least one solid phase separation step. Invention also relates to a device for separating a lignocellulose particle fraction and a lignin particle fraction, in which the crude lignin formed from the starting material comprises lignocellulose particles and lignin particles, the device includes at least one separation device for separating the lignin particle fraction and the lignocellulose particle fraction from each other in at least one solid phase separation step, at least one first feeding device for feeding crude lignin to the separation device and at least one second feeding device for adding a stabilising chemical to the crude lignin, separately or in combination with a hydrophobic chemical in at least one step, so that at least a stabilising agent is added to the crude lignin, wherein said stabilising agent is a polysaccharide or a modified polysaccharide. In addition, the invention relates to a lignocellulose particle fraction and a lignin particle fraction and their use.EFFECT: objective of the invention is to disclose a new method for separating lignocellulose particle fraction and lignin particle fraction.19 cl, 4 dwg, 1 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК C08H 7/00 C08H 8/00 C08L 97/00 C08L 97/02 (11) (13) 2 676 069 C2 (2011.01) (2010.01) (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ ...

Coagulation precipitation treatment method

【課題】被処理水の凝集沈澱処理方法において、急速撹拌の消費エネルギーを節約し、かつ沈澱水濁度を低下させることができるＧR値及びＴR値の選択方法を提供すること。【解決手段】被処理水に対する無機凝集剤注入工程と、注入が行われる急速攪拌工程において、従来技術において通常採用されている１５０ｓ-1〜２０００ｓ-1の範囲にあるＧR値及び１分〜５分の範囲にあるＴR値に対し、ＧR・ＴR値を同一の値に設定したうえで、前記範囲にあるＧR値よりも小さな数値のＧR値を選択し、かつ１０分以上という大きな数値のＴR値を選択することによって、前記課題を達成する被処理水の凝集沈澱処理方法。【選択図】図２ The present invention provides a method for selecting a GR value and a TR value, which can save energy consumed for rapid stirring and reduce the turbidity of the precipitated water in a coagulation-precipitation treatment method of water to be treated. In a process of injecting an inorganic flocculant into water to be treated and a rapid stirring process in which injection is performed, a GR value in a range of 150 s-1 to 2000 s-1 and 1 minute to 5 which are usually employed in the prior art. Set the GR / TR value to the same value for the TR value in the minute range, select a smaller GR value than the GR value in the range, and set a larger TR value of 10 minutes or more. A method for coagulating and precipitating water to be treated which achieves the above-mentioned problem by selecting a value. [Selection] Figure 2

Resource treatment method of high-sulfur copper tailings, product and application thereof

本发明提供了一种高硫铜尾矿的资源化处理方法及其产品和应用，涉及尾矿资源化处理技术领域。该高硫铜尾矿的资源化处理方法，通过将高硫铜尾矿进行脱硫处理后，得到硫精矿和尾矿矿浆A，然后将尾矿矿浆A进行处理，得到建筑砂和尾矿矿浆B，再将尾矿矿浆B进行处理，得到水泥活性混合材；该处理方法在规避高硫、细粒级、高水分难利用铜尾矿中含硫组分对下游资源化利用产品的不利影响的同时，实现了高硫铜尾矿的全组分高效回收利用，在解决尾矿处置难题的同时，有效缓解了建筑砂石、水泥行业原料供应压力；同时，高硫铜尾矿的资源化处理方法无二次废物产生，适合于工业上生产。

Modified amino aldehydes resins and their use in separation

FIELD: process engineering. SUBSTANCE: invention relates to modified resins to be used in selective separation of solid or ionic particles, say, metal cations, from water media. Method of separating clay from clay-containing ore with organic or inorganic admixtures comprises bringing water slime of clay-containing ore in contact with amino aldehydes resin comprising silane binder, and separating clay from said ore in or after contact by foam flotation of, at least, one organic or inorganic additive. Method of cleaning bitumen comprises bringing bitumen slime comprising bitumen and one or several soluble or insoluble additives in contact with amino aldehydes resin comprising silane binder, and separating clay from said ore in or after contact by foam flotation of, at least, one organic or inorganic additive. Method of cleaning water compound comprising water and one or several soluble or insoluble admixtures comprises brining said compound with in contact with amino aldehydes resin comprising silane binder to obtain resin-admixture complex, and separating said complex from water compound in or after treatment to produce purified water. Method of ore enrichment comprises processing of water slime of ore including valuable mineral and one or more admixtures with amino aldehydes resin comprising silane binder to obtain resin-admixture complex, and separating said valuable material from foam flotation water slime. Modified carbamide formaldehyde resin comprises silane binder with covalent bond with carbamide formaldehyde resin with molar urea-to-formaldehyde ratio varying from 1:2 to 1:3. EFFECT: higher efficiency of treatment and enrichment. 42 cl, 1 dwg, 4 tbl, 5 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 420 358 (13) C2 (51) МПК B03D 1/02 (2006.01) C02F 1/52 (2006.01) B01D 43/00 (2006.01) C10C 3/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2007127780/03, 21.12.2005 (24) ...

PROCESS FOR THE TREATMENT OF SUSPENSIONS OF SOLID PARTICLES IN WATER USING AMPHOTERIC POLYMERS

L'invention concerne un procédé pour traiter une suspension aqueuse de particules solides grâce à un polymère soluble dans l'eau ajouté à la suspension, ledit polymère étant obtenu par polymérisation d'au moins un monomère non ionique, d'au moins un monomère anionique et d'une quantité d'au moins un monomère cationique comprise entre 0,2 et 6 mol%. Ce procédé est particulièrement utile pour le traitement de résidus minéraux et en particulier de résidus résultant de l'extraction de sable bitumineux. The invention relates to a process for treating an aqueous suspension of solid particles with a water-soluble polymer added to the suspension, said polymer being obtained by polymerization of at least one nonionic monomer, of at least one anionic monomer. and an amount of at least one cationic monomer of between 0.2 and 6 mol%. This process is particularly useful for the treatment of mineral residues and in particular residues resulting from the extraction of bituminous sand.

A kind of coal slime floating process and device of selectivity reunion clay mineral

本发明公开了一种选择性团聚粘土矿物的煤泥浮选工艺及装置，工艺步骤为：在调浆过程中向入浮煤泥中添加硫酸钠溶液；向与硫酸钠作用后的入浮煤泥中添加聚合氯化铝溶液；添加捕收剂、起泡剂并按照常规浮选流程进行浮选作业；向浮选尾煤中添加聚环氧乙烷溶液。通过在浮选调浆过程中添加硫酸钠和聚合氯化铝，使煤泥中微细的粘土矿物发生选择性团聚，显著降低粘土矿物在浮选过程中的水流夹带，使浮选精煤灰分降低，提高浮选精煤品质；并在浮选尾煤中添加聚环氧乙烷，由于聚合氯化铝中和了粘土颗粒表面的负电荷，因此显著增强了聚环氧乙烷的絮凝效果，使浮选尾煤沉降速率加快，有利于得到澄清的循环水，并显著提高浮选尾煤的脱水效率。

Flocculant composition and process for producing the same

本发明涉及凝集剂组合物及其制造方法，该凝集剂组合物利用交联性水溶性高分子和直链性水溶性高分子的优点，以污泥粒子的粒度分布的状态为指标来改变交联性水溶性高分子和直链性水溶性高分子的配比，对悬浮粒子的吸附性能优异且不会增加污泥粘性，机械脱水时能很好地除去水分而使饼含水率下降，从而能适应于多种污泥。即，通过配合电荷内包率为20％以上的乙烯基聚合类交联性水溶性高分子(A)和电荷内包率为5％以上且不足20％的乙烯基聚合类直链性水溶性高分子(B)而形成的凝集剂组合物。上述凝集剂组合物优选根据污泥中的200目筛上粒子相对于该污泥中的总悬浮粒子的质量％的变化来改变上述电荷内包率为20％以上的乙烯基聚合类交联性水溶性高分子(A)和电荷内包率为5％以上且不足20％的乙烯基聚合类直链性水溶性高分子(B)的配合。

In-situ online characterization method for structural characteristics of micro-fine particle iron mineral aggregate

本发明属于矿物分选领域，具体涉及一种微细粒铁矿物团聚体结构特征原位在线表征方法。本发明采用高速摄像技术和聚焦光束反射实时测量技术对微细粒铁矿聚团调浆过程中铁矿物团聚体的图像特征和颗粒粒度组成情况进行实时采集，然后结合图像分析技术对微细粒铁矿物团聚体的结构特征进行实时表征，具有采集精度高，采集速度快的特点。在选矿厂大规模连续生产过程中进行实时监测，根据实时采集的表征结果结合分选指标通过调整工艺参数对矿物团聚体结构进行在线实时调控，从而选出分选指标较优的聚团分选工艺的工艺参数，为微细粒铁矿聚团分选技术的应用提供技术支持，实现通过聚团分选工艺实现微细粒复杂难选铁矿资源的高效开发利用。

Apparatus and method for the treatment of a contaminated fluid

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 mixer (300) in the bottom of an innermost cylinder (110) that has first stage aerating means (400); a rotary skimmer (500) above the fluid level of the innermost cylinder and a second stage aeration cylinder (120) that has second stage aerating means (600) surrounding the innermost cylinder; a de-aeration baffle (700) on the same plane as the rotary skimmer (500) and extending around an outermost cylinder (150); fluid level control means (800), between the second stage aeration cylinder (120) and the outermost cylinder (150), directing fluid flow from the second stage aeration cylinder (120) out of the tank (100); means (900) for powering the mixer (300) and the rotary skimmer (500) ; and an outlet (1000), permitting clear fluid to exit the tank (100), and an outlet (1100) permitting waste effluent to exit the tank (140).

Process for reducing soluble organic content in produced waters associated with the recovery of oil and gas

A chemical treatment process and separation module are described for removal of soluble organic compounds and suspended or emulsified oils and/or solids from produced waters that accompany operations for oil and gas recovery. The process occurs in its entirety within an interval of several minutes. The solubility of organic compounds is first reduced, in an optional step, by pH reduction, followed by treatment with coagulants and flocculants, the latter in conjunction with microbubble flotation. The organic compounds that are rendered insoluble, along with other oily solids, are captured in the floe created by the coagulant and flocculant treatment, and simultaneously made buoyant by the concurrent addition of microbubbles. The water and floe is passed over an array of sloped strainers that separates and diverts the floe from the effluent water, which contains significantly reduced soluble organic content. The separated stream of oily solids can be dewatered for disposal as waste.

Two stage wastewater flotation

In a first stage, a flow of wastewater is adjusted to near zero streaming potential by injecting a mineral acid into the wastewater. The thus adjusted flow enters a basin where it is subjected to a decreasing gradient of small bubbles to form and separate off a first buoyant floc from the flow of wastewater. The flow of wastewater then passes to a second stage. In the second stage, a metal coagulant is injected into the wastewater, and the wastewater and coagulant enter a coagulation cell into which dense quantities of bubbles are supplied. Buoyant composites of particulates, coagulant and bubbles are formed in the cell. These composites leave the cell together with the wastewater flow and enter a second flotation basin where a second buoyant floc is separated off. The first and second floc combined have a higher solids content, have a lesser relative volume, and have physical properties such that valuable materials are more readily recovered therefrom than from a floc that would be formed if the wastewater were subjected to the second stage only.

Process for reducing soluble organic content in recovered water

A chemical treatment process and separation module are described for removal of soluble organic compounds and suspended or emulsified oils and/or solids from produced waters that accompany operations for oil and gas recovery. The process occurs in its entirety within an interval of several minutes. The solubility of organic compounds is first reduced, in an optional step, by pH reduction, followed by treatment with coagulants and flocculants, the latter in conjunction with microbubble flotation. The organic compounds that are rendered insoluble, along with other oily solids, are captured in the floe created by the coagulant and flocculant treatment, and simultaneously made buoyant by the concurrent addition of microbubbles. The water and floe is passed over an array of sloped strainers that separates and diverts the floe from the effluent water, which contains significantly reduced soluble organic content. The separated stream of oily solids can be dewatered for disposal as waste.

Patent JPH0148075B2

Apparatus and a method for removing suspended particles from water in a circular tank having a distribution and flocculation chamber immersed in the tank of water and carried circularly around the tank by a carriage. Flocculating material and inlet water are introduced into the body of water from the moving flocculating chamber at the same rate as clarified water is discharged through a filter substantially covering the bottom of the tank. A majority of particles in the water is collected by flocs in the water and floated to the water surface by air bubble action. The floating sludge is removed by a spiral scoop carried by the carriage. The water is then passed through the bottom filter which removes the remaining flocs completing the clarification of the water for discharge. Apparatus is provided for selectively back washing sections of the filter while the remainder of the filter is in operation.

Device for flocculation of solids from suspensions

The invention relates to an apparatus for flocculation of solids from suspensions, in particular from sludges or waste waters (effluents), using flocculation aids, having a vessel (1) with a vertical axis (2) and a rotationally symmetrical wall (3), which vessel is provided with inlets for the suspensions and the flocculation aid and outlets for the filtrate and the pelleted flocs (6) and in which is provided a rotationally symmetrical guide wall (7) for forming a loop flow, a screen wall (9) being provided between the guide wall (7) and the wall (3) of the vessel (1), the screen wall being arranged rotationally symmetrically to the axis (2) of the vessel (1) and dividing off a filtrate space (11). <IMAGE>

Device for flocculating solids from suspensions

Method and apparatus for clarification of liquids, in particular water, saturated with material in the form of suspension

FIELD: method and equipment for physicochemical clarification by flotation of water saturated with material in the form of suspension. SUBSTANCE: method involves stage of static flocculation with descending flow, said stage comprising the step of primary separation of heavier particles, with zone where primary separation of heavier particles is performed being positioned under zone, wherein static flocculation step is performed, and including removal of heavier particles, with settling velocities of heavier particles held at this stage of static flocculation/primary separation being lower or equal to settling velocities of floated particles, and flotation step, during which step light particles are removed, with settling velocity of light particles being lower than cutoff threshold of settler. It is preferable that before flocculation step, high-energy mixing step be provided, said step being combined with introduction of one or number of reactants, such as coagulant or flocculant. Apparatus for effectuating said method according to any version comprises static flocculator equipped with deflectors and cutoff devices, lamellar settler positioned directly under static flocculator, and flotation unit with high pressure-expansion system designed for generation of bubbles for flotation of lighter particles, said parts of apparatus being arranged in one and the same volume. Apparatus is further provided with one or number of mechanical flocculation cells, which are supported during mixing process and into which flocculant is injected. Cell is positioned between coagulator and static flocculator-lamellar settler. EFFECT: provision for optimal quality of clarification with the use of flotation treatment of water containing floatable and non-floatable particles, compact construction and provision for preventing formation of bottom sediment in flotation unit. 6 cl, 5 dwg ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (11) 2 282 592 (13) C2 (51) ÌÏÊ C02F 1/24 (2006.01) C02F 1/52 (2006.01) B03D ...

Prepare the method and system of iron ore concentrate

本发明公开了制备铁精矿的方法和系统。其中，制备铁精矿的方法包括：将含铁矿石与分散剂进行第一调浆处理，以便得到具有磁性颗粒和非磁性颗粒异相絮凝的混合物；将所述混合物与表面活性剂进行第二调浆处理，使所述磁性颗粒疏水絮凝，以便得到含有磁性絮凝颗粒的混合物；以及将所述含有磁性絮凝颗粒的混合物进行磁选处理，以便获得铁精矿。该方法在调浆过程中加入六偏磷酸钠作为分散剂，消除溶液中的磁性颗粒和非磁性颗粒异相絮凝，实现分散。然后添加表面活性剂使弱磁性颗粒疏水化，形成含有磁性絮凝颗粒的混合物，使矿浆中的小粒径的磁性颗粒易于磁选，从而有效磁选矿浆中的磁性颗粒。

Boron remover and boron removal method

水溶性の陽イオン性高分子電解質並びにポリビニルアルコール及び／又は陰イオン性変性ポリビニルアルコールを、アルカリ条件下でホウ素含有水溶液に接触させ、生成した凝集物を除去することにより、ホウ素含有水溶液からホウ素を除去する。 A water-soluble cationic polyelectrolyte and polyvinyl alcohol and / or an anion-modified polyvinyl alcohol are brought into contact with the boron-containing aqueous solution under alkaline conditions to remove boron from the boron-containing aqueous solution. Remove.

Water treatment apparatus using lamella structure

본 발명의 일 실시예에 따른 라멜라 구조를 이용한 수처리 장치는, 피처리수를 통과시키는 제1 처리조; 및 상기 제1 처리조의 후단에 설치되어 상기 피처리수를 수용하고, 내부로 기포가 공급되는 제2 처리조를 포함하고, 상기 복수의 경사판은 교번하여 배치되는 양전극판 및 음전극판을 포함하며, 상기 피처리수는 상기 양전극판 및 상기 음전극판 사이를 통과할 수 있다.

Using silicon-containing polymers to improve flocculation of red mud in bayer process

FIELD: chemistry. ^ SUBSTANCE: compositions contain water-soluble or water-dispersed organosilicon polymer flocculants for the desilication product and an anionic polymer flocculant for Bayer process red mud, in which the weight ratio of the amount of the silicon-containing flocculant to the amount of the polymer flocculant ranges from approximately 100:1 to approximately 1:10. The disclosed flocculation methods involve mixing Bayer process streams with the disclosed compositions in an amount which is sufficient for flocculation of suspended solid particles contained in the red mud, the desilication product and mixtures thereof. ^ EFFECT: high degree of separation of suspended solid substances in Bayer process streams when said streams come into contact with silicon-containing polymer flocculants and high degree of purity of the obtained product - aluminium oxide. ^ 24 cl, 14 tbl, 17 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 429 207 (13) C2 (51) МПК C02F B01D C01F C02F 1/56 (2006.01) 21/01 (2006.01) 7/06 (2006.01) 103/16 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2009142813/05, 20.03.2008 (24) Дата начала отсчета срока действия патента: 20.03.2008 (73) Патентообладатель(и): САЙТЕК ТЕКНОЛОДЖИ КОРП. (US) R U Приоритет(ы): (30) Конвенционный приоритет: 20.04.2007 US 60/912,981 (72) Автор(ы): ДАЙ Ки (US), ШПИТЦЕР Дональд Пол (US), ХЕЙТНЕР Хауард И. (US), ЧЕН Х-Л Тони (US) (43) Дата публикации заявки: 27.05.2011 Бюл. № 15 2 4 2 9 2 0 7 (45) Опубликовано: 20.09.2011 Бюл. № 26 (56) Список документов, цитированных в отчете о поиске: RU 2147013 C1, 27.03.2000. RU 2278125 C2, 27.12.2004. RU 2174987 C2, 20.10.2001. WO 97/16378 A1, 09.05.1997. US 6048463 A, 11.04.2000. US 5286391 A, 15.02.1994. 2 4 2 9 2 0 7 R U (86) Заявка PCT: US 2008/057676 (20.03.2008) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 20.11.2009 (87) Публикация заявки РСТ: WO 2008/130766 ( ...

A kind of method from Tungsten smelting slag recovery tungsten

本发明属于固体废物回收利用技术领域，涉及一种从钨冶炼渣回收钨的方法。具体操作为：钨冶炼渣自然晾干后，采用堆锥法分匀，先加入水调成10％浓度，置入搅拌转速为2000r/min的高速矿浆搅拌筒搅拌30～60分钟，使微细粒钨与微细粒脉石预分散；将预分散矿浆置入浮选机进行浮选试验，加入矿浆调整剂硫酸，钨分散剂马来酸‑丙烯酸共聚物(MA‑AA)，脉石抑制剂氟硅酸钠，絮凝剂淀粉，钨捕收剂731氧化石蜡皂，消泡剂BY‑2，粗选得到钨粗精矿；对钨粗矿进行两次精选浮选作业后，得到钨精矿，同时对粗选矿浆进行两次扫选作业得到尾矿。采用本发明能够有效回收钨冶炼渣中的钨，特别适应于钨冶炼渣中超细粒(‑10微米)钨的回收，浮选回收钨工艺成熟，易实现工业生产。

Method for coal enrichment

A process is disclosed for the beneficiation of coal by means of selective agglomeration, wherein an agglomerating blend is used, which is constituted by: - one or more main agglomerating agent(s), selected from the light hydrocarbons having a boiling temperature not higher than 70°C, - one or more non-ionic additive(s), selected from oil-­soluble ethoxylated compounds; - one or more heavy co-agglomerating agent(s) selected from oils deriving from the distillation of coal-tar, having a boiling temperature comprised within the range of from 200 to 400°C or the residual products from oil processing or blends thereof.

Rear combination lamp assembly

본 발명은 리어 콤비네이션 램프 어셈블리의 재생 방법에 관한 것으로서, 더욱 상세하게는 서로 다른 재질의 종(Sub) 부품으로 구성된 폴리프로필렌계(PP)계 리어 콤비네이션 램프 어셈블리를 분쇄하고 이들 분쇄물을 분리용액 중에서 최소한 일 회 재질별로 분리회수한 후 건조하고, 압출기를 사용하여 압출 재생함으로써 폐기물 처리비용을 절감하고 생산공정 또는 조립공정 중 발생하는 불량품의 재활용에 유용하게 이용될 수 있는 리어 콤비네이션 램프 어셈블리의 재생 방법에 관한 것이다. The present invention relates to a method for regenerating a rear combination lamp assembly, and more particularly, to pulverizing a polypropylene-based rear combination lamp assembly composed of sub-components of different materials, and pulverizing these powders in a separation solution. Recycling method of the rear combination lamp assembly that can be separated and recovered at least once by material and dried, and then extruded and regenerated by using an extruder to reduce waste disposal costs and be useful for recycling defective products generated during production or assembly processes. It is about.

METHOD, SYSTEM AND DEVICES FOR SORTING DIFFERENT MATERIALS

1. Концентратор для сортировки повторно используемых материалов в легкую и тяжелую фракции, содержащий ! конвейер, подающий поток материалов, по меньшей мере, некоторые из которых пригодны для повторного использования, ! по меньшей мере, один сепараторный модуль, который принимает, по меньшей мере, часть потока материалов и разделяет материалы в легкую фракцию и тяжелую фракцию за счет воздействия на поток движущегося воздуха, за счет чего, по меньшей мере, одна фракция отклоняется от своего первоначального направления, и ! откатный конвейер для устранения легких или круглых кусков, по меньшей мере, из одной из фракций. ! 2. Концентратор по п.1, в котором сепараторный модуль содержит воздушный нож. ! 3. Концентратор по п.1, дополнительно содержащий, по меньшей мере, один бак флотации/осаждения, который принимает, по меньшей мере, одну из фракций и разделяет эту фракцию в подфракции в соответствии с заданным удельным весом. ! 4. Концентратор по п.3, в котором, по меньшей мере, один бак флотации/осаждения принимает тяжелую фракцию. ! 5. Концентратор по п.4, в котором тяжелая фракция содержит, по меньшей мере, проволоку и металл. ! 6. Концентратор по п.5, в котором заданный удельный вес составляет порядка 1,4. ! 7. Концентратор по п.5, в котором заданный удельный вес составляет порядка 1,1 - 2. ! 8. Концентратор по п.1, дополнительно содержащий магнитные средства для выделения магнитных материалов в потоке материалов. ! 9. Концентратор по п.8, в котором поток подается к магнитным средствам перед сепараторным модулем. ! 10. Концентратор по п.4, дополнительно содержащий сеточный модуль для устранения грязи и мелких частиц из тяжелой фракции. ! 11. Конце� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2008 120 598 (13) A (51) МПК B03B 7/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21), (22) Заявка: 2008120598/03, 24.10.2006 (71) Заявитель(и): ВАЛЕРИО Томас А. (US) (30) Конвенционный приоритет: 24.10.2005 US ...

Amino aldehyde resins and their use in separation methods

FIELD: technological processes. SUBSTANCE: invention relates to resins for use in separation methods and especially in selective separation of solid substances and/or ion particles, such as metal cations, from water media. Method for removal of admixtures from bitumen-containing slurry includes delivery of bitumen-containing slurry, including bitumen, water and at least one admixture, aeration of bitumen-containing slurry, contact of aerated bitumen-containing slurry with amino aldehyde resin, to produce lower and upper fractions and foam, and then lower fraction is separated from medium fraction and foam. Method for dehydration of coal-containing slurry includes delivery of coal-containing slurry, including coal and water, contact of coal-containing slurry with dispersion of aminoformaldehyde resin produced by interaction of urea and formaldehyde at mole ratio of formaldehyde to urea between 1.75:1 and 3:1, besides aminoformaldehyde resin has value of number-average molecular mass between 400 and 1200 g/mole, therefore coal is separated from slurry, and then separated coal is dehydrated by filtration, deposition or drying. Method for removal of admixtures from water includes delivery of contaminated water, including admixtures, such as solid particles, metal cations or their combinations, contact of contaminated water with dispersion of aminoformaldehyde resin produced by interaction of urea and formaldehyde at mole ratio of formaldehyde to urea between 1.75:1 and 3:1, besides aminoformaldehyde resin has value of number-average molecular mass between 400 and 1200 g/mole, therefore admixtures are settled from contaminated water to produce purified water having lower concentration of admixtures compared to contaminated water, and further admixtures are separated from purified water. Method for treatment of clay from ore, which contains clay as the main component, includes delivery of slurry from clay-containing ore and water, contact of slurry with amino aldehyde ...

Analytical method

본 발명은 정성적(qualitatively) 및/또는 정량적으로(quantitatively) 측정될 분석물을 함유하는 샘플의 분석 방법을 제공하며, 상기 방법은 결합 단계 및 세정 단계를 포함하고, 상기 결합 단계는: 밀도 m1의 비드(bead)와 분석물을 상호작용시키는 단계; 밀도 m2의 정량 가능 비드 착물을 포함하는 충전된 비드의 구조를 얻는 단계를 포함하고; 세정 단계는: 밀도 d > m2 및 m1의 액체 매체 중에 충전된 비드를 분산시키는 단계; 및 액체 매체와 정량 가능 비드 착물을 포함하는 비드를 분리하는 단계를 포함한다. The present invention provides a method of analyzing a sample containing an analyte to be quantitatively and / or quantitatively measured, the method comprising a combining step and a washing step, wherein the combining step comprises: Interacting the bead of the analyte with the analyte; Obtaining a structure of filled beads comprising a quantifiable bead complex of density &lt; RTI ID = 0.0 &gt; m2 &lt; / RTI &gt;; The cleaning step comprises: dispersing the filled beads in a liquid medium of density d &gt; m2 and m1; And separating the bead comprising the liquid medium and the quantifiable bead complex.

Method for measuring a degree of homogeneity of oils using reverse titration

본 발명은 역적정을 이용한 유분의 혼화성 정도를 측정 방법에 관한 것으로, 상기 유분의 왁스 및 아스팔텐 성분 중 적어도 어느 하나를 응집제로 침전시켜 응집액을 얻는 단계; 상기 응집액에 용해제를 가하면서 상기 응집액의 자외선 투과도를 측정하는 단계; 및 상기 용해제의 투입량 및 자외선 투과도의 변화로부터 상기 유분의 혼화성을 측정하는 단계를 포함하며, 상기 혼화성은 자외선 투과도의 증가 기울기 변화시점을 기초로 측정한다. The present invention relates to a method for measuring the miscibility of an oil using back titration, comprising the steps of precipitating at least one of a wax and asphaltene component of the oil with a coagulant to obtain a coagulant; measuring the ultraviolet transmittance of the aggregate while adding a dissolving agent to the aggregate; and measuring the miscibility of the oil component from the change in the amount of the solubilizer and the change in UV transmittance, wherein the miscibility is measured based on the time point at which the increase slope of the UV transmittance changes.

- modified amine-aldehyde resins and uses thereof in separation processes

액체에 용해 및/또는 현탁되어 있는 다양한 종류의 고체 및/또는 이온성 화학종을 상기 액체로부터 제거하기 위한 변형 수지를 개시한다. 이 변형 수지는 모래와 같은 고체 불순물로부터 경제 광물인 역청을 분리하는 경우, 및 점토 불순물을 포함하는 미정제 석탄을 선광하는 경우를 포함하는 다양한 종류의 물질(예를 들어 광물과 금속 원광)의 선광에서 부유 부상 억제제(froth flotation depressant)로서 특히 유용하다. 상기 변형 수지는 또한 물의 정제시 금속 이온을 제거하는 것뿐만 아니라 고체 입자를 수성 현탁액으로부터 제거하는데 유용하다. 상기 변형 수지는 커플링제로 변형된 바탕 수지를 포함하고, 이 바탕 수지는 고체 불순물, 특히 모래 또는 점토와 같은 규산질 물질과 고도의 선택성을 가지고 결합한다. Modified resins are disclosed for removing various types of solid and / or ionic species from the liquid that are dissolved and / or suspended in the liquid. This modified resin is used for beneficiation of various types of materials (eg mineral and metal ore), including the separation of bitumen, an economic mineral, from solid impurities such as sand, and the beneficiation of crude coal containing clay impurities. It is particularly useful as a float flotation depressant. The modified resins are also useful for removing solid particles from aqueous suspensions as well as removing metal ions upon purification of water. The modified resin comprises a base resin modified with a coupling agent, which base resin combines with high selectivity with solid impurities, in particular siliceous materials such as sand or clay. 변형 수지, 분리 공정, 커플링제, 역청, 점토, 석탄 Strain Resin, Separation Process, Coupling Agent, Bitumen, Clay, Coal

Flat panel display device and method of manufacturing that device

본 발명은 외부 수분 및 산소 등의 침투가 방지된 평판 표시 장치 및 그 제조방법을 위하여, 서로 대향된 전면 기판과 배면 기판 사이에 복수개의 화소들이 구비된 평판 표시 패널 및 상기 평판 표시 패널에 구비되는 브래킷을 포함하며, 상기 브래킷은 상기 평판 표시 패널의 측면과 가장자리를 감싸는 것을 특징으로 하는 평판 표시 장치를 제공한다. The present invention provides a flat panel display panel having a plurality of pixels between a front substrate and a rear substrate opposed to each other, and a flat panel display panel for preventing a penetration of external moisture, oxygen, and the like. It includes a bracket, the bracket provides a flat panel display device characterized in that it surrounds the side and edge of the flat panel display panel.

Method for preparing oligomer

본 발명은 올리고머의 제조방법에 관한 것으로, 단량체 스트림 및 용매 스트림을 반응기로 공급하여 올리고머화 반응시켜 반응 생성물을 제조하는 단계; 상기 반응 생성물을 포함하는 반응기 배출 스트림을 분리 장치로 공급하고, 분리 장치 하부 배출 스트림은 침전조로 공급하는 단계; 상기 침전조에 유기계 응집제를 투입하여 고분자를 침전시켜 제거하고, 고분자가 제거된 분리 장치 하부 배출 스트림을 고비점 분리탑으로 공급하는 단계; 및 상기 고비점 분리탑에서 하부 배출 스트림으로부터 고비점 물질을 제거하고, 올리고머를 포함하는 상부 배출 스트림은 용매 분리탑으로 공급하는 단계를 포함하는 올리고머 제조방법을 제공한다.

Water treatment agent

【課題】水の浄化効果に優れ、例えば、界面活性剤を含む廃水に対しても、優れた浄化効果を発揮する水処理剤を提供する。【解決手段】（ａ）重量平均分子量５０万以上のポリアルキレンオキサイド、及び（ｂ）無機凝集剤を含有する、水処理剤。【選択図】なし

Method of dehydration of pulps of nickel-containing oxidized ores

FIELD: mining industry. SUBSTANCE: invention proposes method enabling removal of most water contained in pulps of oxidized nickel ores. Method comprises diluting pulp with water to concentration of solids below 150 g/l, injecting, into diluted pulp, aqueous solution of organic flocculant based on acrylic acid copolymer with molecular weight 2•10 6 to 3•10 6 in amounts between 50 and 1000 g per 1 t solids in pulp, injected solution being then allowed to be in contact with diluted pulp for a period of time long enough to reduce concentration of solids in clarified solution below 100 mg/l, whereas concentration of solids in thickened product reaches value between 450 and 300 g/l. Thickened product is finally separated from clarified solution. EFFECT: enhanced process efficiency and reduced expenses on flocculant. 13 cl, 6 ex 942160сСсс ПЧ сэ РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК? ВИ "” 2 209 775. 13) С2 С 02 Е 1/52, 14/12 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 98115385/12, 05.08.1998 (24) Дата начала действия патента: 05.08.1998 (30) Приоритет: 06.08.1997 ЕК 9710075 (43) Дата публикации заявки: 21.08.2000 (46) Дата публикации: 10.08.2003 (56) Ссылки: ЕК 2320781 А1, 15.04.1977. ЗЦ 522785 А, 25.07.1976. КЦ 2026867 СЛ, 20.01.1995. ММО 93/06046 АЛ, 01.04.1993. 4$ 4802993 А, 07.02.1989. (98) Адрес для переписки: 129010, Москва, ул. Б. Спасская, 25, стр.3, ООО "Юридическая фирма Городисский и Партнеры", Ю.Д.Кузнецову (71) Заявитель: СОСЬЕТЕ ЛЕ НИКЕЛЬ - СЛН (МС) (72) Изобретатель: КАРДИНИ Жан-Луи (МС), РЕНБУЛЬ Жан Роже Поль (МС) (73) Патентообладатель: СОСЬЕТЕ ЛЕ НИКЕЛЬ - СЛН (МС) (74) Патентный поверенный: Кузнецов Юрий Дмитриевич (54) СПОСОБ ОБЕЗВОЖИВАНИЯ ПУЛЬП НИКЕЛЬСОДЕРЖАЩИХ ОКИСЛЕННЫХ РУД (57) Изобретение относится к способу, обеспечивающему возможность удаления большей части воды, содержащейся в пульпах окисленных никелевых руд. Способ обезвоживания пульп никельсодержащих окисленных руд включает разбавление ...

METHOD AND DEVICE FOR CLARIFYING LIQUIDS, ESPECIALLY WATER, LOADS OF SUSPENSION MATERIALS

A method is disclosed for clarifying, by flotation, waters contaminated with suspended matter, wherein the clarification treatment takes place in two successive steps implemented in a single installation. The method principally involves flowing contaminated water through a downflow static flocculation step and then down through a lamellar settler separation step positioned directly below the downflow static flocculation step, the settling rates of the heavier particles of the lamellar settler separation step removing heavier particles from the water retained during the static flocculation/lamellar separation step being less than or equal to the settling rates of the floatable particles. The water which has passed through the static flocculation/lamellar settler separation step is then subjected to a flotation step which removes the light particles in the water of which the settling rate is lower than a flotation cutoff threshold.

Continuous chemical treatment of effluents - esp. from laundries, contg. dissolved, emulsified or colloidal contaminants

Dissolved, emulsified and/or colloidal contaminants are removed from effluent liqs. using fine gas bubbles blown into a vertical section contg. the liq. mixed with the required chemicals. As it descends in a chamber for flocculation/coagulation/flotation the mixed liq. is mixed with fresh incoming liq. Risen solids are removed from the top of this chamber. In an adjacent settling chamber sludge is removed from the bottom and purified liq. from the top. Process can be regulated by the amt. of gas used. Appts. is also claimed. System is esp. for removing detergent, grease, oil and dirt from laundry effluent, and is applied in a single unit with no mechanical stirring. Recirculation of active flocculate reduces chemical consumption and produces less sludge.

Scheelite recovery from alluvial tungsten ore - by flotation in alkali soln contg a deflocculant, polyvalent cations and a fatty acid

The ore in slurried and foamed and flotated in the presence of a deflocculant in alkaline soln. a source of polyvalent cations to depress in calcium bearing minerals other than scheelite, and a fatty acid to collect the scheelite. The slurry is agitated vigorously for at least 5 mins. prior to flotation.

APPARATUS AND METHOD FOR CLARIFYING WATER BY COMBINED USE OF FLOTATION AND FILTRATION PROCESSES

L'INVENTION CONCERNE UN APPAREIL ET UN PROCEDE POUR ENLEVER DES PARTICULES EN SUSPENSION DANS DE L'EAU DANS UNE CUVE CIRCULAIRE 10 COMPORTANT UNE CHAMBRE DE DISTRIBUTION ET FLOCULATION IMMERGEE DANS LA MASSE D'EAU ET ENTRAINEE CIRCULAIREMENT AUTOUR DE LA CUVE PAR UN CHARIOT 12. UNE MATIERE DE FLOCULATION ET L'EAU ENTRANTE SONT INTRODUITES DANS LA MASSE D'EAU A PARTIR DE LA CHAMBRE DE FLOCULATION MOBILE 38 A LA MEME VITESSE QUE DE L'EAU CLARIFIEE ET DECHARGEE PAR L'INTERMEDIAIRE D'UN FILTRE 24 RECOUVRANT PRATIQUEMENT LE FOND DE LA CUVE 10. LA MAJORITE DES PARTICULES CONTENUES DANS L'EAU SONT COLLECTEES PAR DES FLOCONS PRODUITS DANS LA MASSE D'EAU ET FLOTTANT VERS LA SURFACE DE L'EAU SOUS L'ACTION DE BULLES D'AIR FORMEES; LA BOUE EN FLOTTATION EST EVACUEE PAR UN AUGET SPIRAL 62 PORTE PAR LE CHARIOT 12; L'EAU PASSE ENSUITE AU TRAVERS DU FILTRE QUI ENLEVE LE RESTE DES FLOCONS EN TERMINANT LA CLARIFICATION DE L'EAU AVANT SA DECHARGE. APPLICATION AUX INSTALLATIONS D'EPURATION D'EAU. THE INVENTION RELATES TO AN APPARATUS AND A PROCESS FOR REMOVING PARTICLES IN SUSPENSION IN WATER IN A CIRCULAR TANK 10 INCLUDING A DISTRIBUTION AND FLOCULATION CHAMBER IMMERSED IN THE MASS OF WATER AND CIRCULARLY DRIVEN AROUND THE TANK BY A TROLLEY 12 FLOCCULATING MATERIAL AND THE ENTERING WATER ARE INTRODUCED INTO THE WATER MASS FROM MOBILE FLOCCULATION CHAMBER 38 AT THE SAME SPEED AS CLARIFIED WATER AND DISCHARGED THROUGH A FILTER 24 COVERING PRACTICALLY THE BOTTOM OF THE TANK 10. THE MAJORITY OF THE PARTICLES CONTAINED IN THE WATER ARE COLLECTED BY FLAKES PRODUCED IN THE MASS OF WATER AND FLOAT TOWARDS THE SURFACE OF THE WATER UNDER THE ACTION OF AIR BUBBLES; THE FLOATING MUD IS EVACUATED BY A SPIRAL AUGET 62 CARRIED BY CARRIAGE 12; THE WATER THEN PASSES THROUGH THE FILTER WHICH REMOVES THE REMAINING FLAKES BY COMPLETING THE CLARIFICATION OF THE WATER BEFORE ITS DISCHARGE. APPLICATION TO WATER TREATMENT SYSTEMS.

Mineral separation process for high-intensity magnetic separation recovery of ultra-fine grain grade low-grade hematite and limonite

本发明提供了一种用于超细粒级低品位赤褐铁矿强磁选回收的选矿工艺，该工艺包括如下步骤：1）将经弱磁选后的赤褐铁矿尾矿进行磨矿至粒径为-1250目的矿物达到95%以上；2）向步骤1）所得物加入分散剂并进行充分强烈搅拌；3）向步骤2）所得物加入絮凝剂并进行搅拌，絮凝剂的加入量为100-400g/吨·矿物；所述絮凝剂按重量份计由以下组分构成：3份腐植酸钠、1份阴离子聚丙烯酰胺、20-80份水；4）对步骤3）所得物进行强磁选，得到铁精矿。本发明适用于具有铁矿物含量低、嵌布粒度极细特点的超细粒级低品位赤褐铁矿的选矿工作，所得铁的回收率高，可获得优质的铁精矿；在本发明工艺中，絮凝剂的使用量小。

APPARATUS AND METHOD FOR CLARIFYING WATER BY COMBINED USE OF FLOTATION AND FILTRATION PROCESSES

Apparatus and a method for removing suspended particles from water in a circular tank having a distribution and flocculation chamber immersed in the tank of water and carried circularly around the tank by a carriage. Flocculating material and inlet water are introduced into the body of water from the moving flocculating chamber at the same rate as clarified water is discharged through a filter substantially covering the bottom of the tank. A majority of particles in the water is collected by flocs in the water and floated to the water surface by air bubble action. The floating sludge is removed by a spiral scoop carried by the carriage. The water is then passed through the bottom filter which removes the remaining flocs completing the clarification of the water for discharge. Apparatus is provided for selectively back washing sections of the filter while the remainder of the filter is in operation.

AQUEOUS EFFLUENT TREATMENT PROCESS

PROCEDE DE TRAITEMENT D'EFFLUENT AQUEUX L'invention concerne une formulation de floculation. L'invention concerne également le traitement de résidus miniers sous la forme d'effluents aqueux comprenant des particules solides. Le procédé de l'invention permet de séparer tout ou partie de l'eau d'un effluent aqueux comprenant des particules solides. Figure pour l'abrégé : néant The invention relates to a flocculation formulation. The invention also relates to the treatment of mining residues in the form of aqueous effluents comprising solid particles. The method of the invention makes it possible to separate all or part of the water from an aqueous effluent comprising solid particles. Figure for the abstract: none

Separation of minerals

ABSTRACT Minerals in low concentration are separated from an ore body by treating the mineral to give it a lyophilic surface, grinding and forming a slurry and then carrying out an agglomeration treatment with addition of an oil and agglom-erates of the mineral having a size below 500 microns. The agglomeration treatment is continued with recyling of the agglomerates to increase the mineral content in the agglomer-ates. Suitable minerals are cassiterite, chalcopyrite, sphalerite and galena.

CHECKING THE SEDIMENTATION OF A MINING DERIVATIVE

L'invention concerne une méthode de contrôle de la sédimentation d'une suspension minérale aqueuse d'un dérivé minier par concentration par gravimétrie de la suspension aqueuse en présence d'un agent de floculation et d'un polymère (P) préparé par au moins une réaction de polymérisation radicalaire d'au moins un monomère anionique (M). L'invention concerne également la suspension produite dont la viscosité Brookfield est inférieure à 1 800 mPa.s ou dont le seuil d'écoulement est inférieur à 80 Pa. The invention relates to a method of controlling the sedimentation of an aqueous mineral suspension of a mining derivative by gravimetric concentration of the aqueous suspension in the presence of a flocculating agent and of a polymer (P) prepared by at least a radical polymerization reaction of at least one anionic monomer (M). The invention also relates to the suspension produced, the Brookfield viscosity of which is less than 1800 mPa.s or the yield point of which is less than 80 Pa.

PROCESS FOR FLOCCULATING URANIUM ACID LEACHING DISPERSIONS

DEVICE FOR SEPARATING BLOOD AND OBTAINING SERUM

PROCESS FOR TREATING A MIXTURE OF AGGREGATES AND CLAY MATERIALS

Patent FR2496081B1

Lamellar decanter for waste water treatment has feed duct collecter permitting recuperation of floating material and improved decanter feed

The lamellar decanter, equipped with a sludge scraper bridge (11) and treated water recuperation troughs preceded by coagulation and flocculation systems, has its feed duct (6) equipped with a collector (7) in the general shape of a chamber combining the recuperation of floating material with improved decanter feed. A system for levelling floating material is provided by a manually or automatically adjustable tilting chute at the top of the chamber, the bottom of which is inclined and connected directly to a pump for evacuating the floating material through a pipe.

METHOD AND DEVICE FOR PURIFYING FLOCCULATED PRODUCTS

FLOCCULATION PROCESS

L'invention concerne un procédé d'obtention de liquide limpide, à partir d'une suspension de solides dans le liquide. Ce procédé consiste à ajouter un agent de floculation polymère à la suspension, à mélanger la suspension pendant au moins 30 s, à ajouter en mélangeant de l'agent de floculation supplémentaire dans la suspension, à soumettre cette suspension à un procédé de séparation solides/liquide par sédimentation ou par flottation pour obtenir un liquide séparé, puis à clarifier le liquide séparé par filtration. On utilise de préférence ce procédé pour séparer des suspensions inorganiques, telles que celles obtenues lors d'un procédé de lessivage du minerai. The invention relates to a process for obtaining a clear liquid from a suspension of solids in the liquid. This process consists of adding a polymeric flocculating agent to the suspension, mixing the suspension for at least 30 s, adding by mixing additional flocculating agent into the suspension, subjecting this suspension to a solids / separation process. liquid by sedimentation or flotation to obtain a separated liquid, and then clarifying the separated liquid by filtration. This process is preferably used to separate inorganic suspensions, such as those obtained in an ore leaching process.

Mineral sludge settling process