The present invention relates to a crystalline form hydrated with 2-acrylamido-2-methylpropane sulphonic acid having an x-ray diffraction pattern on powder comprising spikes at 10.58°, 11.2°, 12.65°, 13.66°, 16.28°, 18.45°, 20°, 20.4°, 22.5°, 25.5°, 25.88°, 26.47°, 28.52°, 30.28°, 30.8°, 34.09°, 38.19°, 40.69°, 41.82°, 43.74°, 46.04° 2-theta degrees (+/- 0.1°). The present invention further relates to a method for manufacturing this form of 2-acrylamido-2-methylpropane sulphonic acid, as well as to a method for preparing an aqueous solution A of a salt of this form of 2-acrylamido-2-methylpropane sulphonic acid and the (co)polymer of this form of 2-acrylamido-2-methylpropane sulphonic acid.
C07C 309/15 - Sulfonic acids having sulfo groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton containing amino groups bound to the carbon skeleton the nitrogen atom of at least one of the amino groups being part of any of the groups X being a hetero atom, Y being any atom
2.
ENHANCED OIL RECOVERY METHOD USING A (CO)POLYMER OF A HYDRATED CRYSTALLINE FORM OF 2-ACRYLAMIDO-2-METHYLPROPANE SULFONIC ACID
An enhanced oil recovery method comprising the following steps: a) Preparing an injection fluid comprising at least one water-soluble (co)polymer prepared at least from 2-acrylamido-2-methylpropane sulfonic acid (ATBS) or at least one of the salts of same, with water or with brine, the 2-acrylamido-2-methylpropane sulfonic acid being a hydrated crystalline form of 2-acrylamido-2-methylpropane sulfonic acid having an X-ray powder diffraction pattern with peaks at 2-theta angles 10.58°, 11.2°, 12.65°, 13.66°, 16.28°, 18.45°, 20°, 20.4°, 22.5°, 25.5°, 25.88°, 26.47°, 28.52°, 30.28°, 30.8°, 34.09°, 38.19°, 40.69°, 41.82°, 43.74°, 46.04°, b) Injecting the injection fluid into an underground formation, c) Flushing the underground formation by means of the injected fluid, d) Recovering an aqueous and hydrocarbon mixture.
C07C 309/15 - Sulfonic acids having sulfo groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton containing amino groups bound to the carbon skeleton the nitrogen atom of at least one of the amino groups being part of any of the groups X being a hetero atom, Y being any atom
3.
METHOD FOR TREATING A SUSPENSION OF SOLID PARTICLES IN WATER USING A (CO)POLYMER OF A HYDRATED CRYSTALLINE FORM OF 2-ACRYLAMIDO-2-METHYLPROPANESULFONIC ACID
The invention relates to a method for treating a suspension of solid particles in water using hydrosoluble (co)polymers prepared from the hydrated crystalline form of 2-acrylamido-2-methylpropanesulfonic acid or at least one of the salts thereof. This method is particularly useful for the treatment of mining residues.
C07C 309/15 - Sulfonic acids having sulfo groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton containing amino groups bound to the carbon skeleton the nitrogen atom of at least one of the amino groups being part of any of the groups X being a hetero atom, Y being any atom
4.
FRACTURING FLUID COMPRISING A (CO)POLYMER OF A HYDRATED CRYSTALLINE FORM OF 2-ACRYLAMIDO-2-METHYLPROPANE SULPHONIC ACID AND HYDRAULIC FRACTURING METHOD
The present invention relates to a fracturing fluid comprising at least one support agent and at least one hydrosoluble (co)polymer prepared from the hydrated crystalline form of 2-acrylamido-2-methylpropane sulphonic acid and/or from at least one of its salts. The invention further relates to a method for preparing said fluid, as well as to a hydraulic fracturing method using said fluid.
C07C 309/15 - Sulfonic acids having sulfo groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton containing amino groups bound to the carbon skeleton the nitrogen atom of at least one of the amino groups being part of any of the groups X being a hetero atom, Y being any atom
The present invention provides methods and compositions for treating clay-bearing aggregates, particularly those used for construction purposes, whereby inclusion of fines is maximized due to minimization of clay washing which tends to remove such fines, and whereby performance of the aggregate-containing construction material is enhanced. Exemplary methods comprise introducing to clay a water-soluble, functionalized polyamine comprising a water-soluble polyamine formed by reacting an amine compound with an epoxy compound, the polyamine thus reacted being functionalized through the use of certain halide, sulfate, or epoxy compounds.
C09K 8/467 - Compositions for cementing, e.g. for cementing casings into boreholesCompositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement containing additives for specific purposes
C04B 40/00 - Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
The present invention is concerned with the treatment of produced water, obtained from a chemically enhanced oil recovery process using viscosity-increasing polymeric compounds. Said treatment comprises particularly the steps of obtaining a produced water, from an oil- water mixture recovered from an oil-bearing formation, wherein the produced water comprises the viscosity-increasing polymeric compounds; and, of directing the produced water to a specific filtration device, and subjecting the produced water to filtration, for obtaining a retentate stream and a permeate stream. Said process allows particularly obtaining a permeate comprising the viscosity-increasing polymeric compounds, said permeate being substantially free of suspended solids, free oil and emulsified oil.
The present invention provides methods and compositions for treating clay-bearing aggregates, particularly those used for construction purposes, whereby inclusion of fines is maximized due to minimization of clay washing which tends to remove such fines, and whereby performance of the aggregate-containing construction material is enhanced. Exemplary methods comprise introducing to clay a water-soluble, functionalized polyamine comprising a water-soluble polyamine formed by reacting an amine compound with an epoxy compound, the polyamine thus reacted being functionalized through the use of certain halide, sulfate, or epoxy compounds.
C04B 24/26 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
C04B 40/00 - Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
C09K 8/18 - Clay-containing compositions characterised by the organic compounds
C09K 8/467 - Compositions for cementing, e.g. for cementing casings into boreholesCompositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement containing additives for specific purposes
The present invention provides methods and compositions for treating clay-bearing aggregates, particularly those used for construction purposes, whereby inclusion of fines is maximized due to minimization of clay washing which tends to remove such fines, and whereby performance of the aggregate-containing construction material is enhanced. Exemplary methods comprise introducing to clay a water-soluble, functionalized polyamine comprising a water-soluble polyamine formed by reacting an amine compound with an epoxy compound, the polyamine thus reacted being functionalized through the use of certain halide, sulfate, or epoxy compounds.
C04B 24/26 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
C04B 40/00 - Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
The present invention provides methods and compositions for treating clay-bearing aggregates, particularly those used for construction purposes, whereby inclusion of fines is maximized due to minimization of clay washing which tends to remove such fines, and whereby performance of the aggregate-containing construction material is enhanced. Exemplary methods comprise introducing to clay a water-soluble, functionalized polyamine comprising a water-soluble polyamine formed by reacting an amine compound with an epoxy compound, the polyamine thus reacted being functionalized through the use of certain halide, sulfate, or epoxy compounds.
C04B 24/26 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
C04B 40/00 - Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
A composition based on lime comprising at least one mineral agent consisting of slaked lime in the solid phase and of an organic polymer incorporated into said solid phase, a method for its making and the use for its application in the treatment of water and sludge, in particular for conditioning sludge before dewatering.
B01J 20/04 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
B01J 20/22 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising organic material
11.
COMPOSITION BASED ON CALCIUM HYDROXIDE, METHOD FOR THE PRODUCTION THEREOF AND USE OF SAME FOR TREATING WATER AND MUD
The invention relates to a composition based on calcium hydroxide, comprising at least one mineral agent consisting of calcium hydroxide in a solid phase and an organic polymer integrated into said solid phase. The invention also relates to a method for producing said composition and to the use of same for the treatment of water and mud, especially for the conditioning of mud before dehydration.
C02F 11/14 - Treatment of sludgeDevices therefor by de-watering, drying or thickening with addition of chemical agents
C08J 3/05 - Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media from solid polymers
C02F 1/68 - Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
The invention relates to a composition for conditioning mud, said composition comprising a mineral compound of calcium hydroxide and an organic compound which is a cationic organic coagulant having an average ponderal molecular weight less than or equal to 5 million g/mol and higher than or equal to 20,000 g/mol, said cationic organic coagulant being selected from the group of linear or branched polymers based on diallyldialkyl ammonium salts.
C02F 1/68 - Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
C02F 11/14 - Treatment of sludgeDevices therefor by de-watering, drying or thickening with addition of chemical agents
C08J 3/05 - Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media from solid polymers
13.
Method for treating mineral sludge above ground using polymers
Provided is a method for treating sludge from the mining or mineral industry, including before above-ground spreading, contacting the sludge with a flocculating agent that is a water-soluble, organic polymer having a molecular weight of from 5,000,000 to 25,000,000 g/mol and an anionicity of from 10 to 40 mol %, to produce contacted sludge, wherein the water-soluble organic polymer includes at least one anionic monomer having a carboxylic function or having a sulfonic acid function, at least one non-ionic monomer, and optionally one or more cationic monomers, where the flocculating agent is branched, and has from 0.02 to 2 mol % hydrophobic monomers.
Process for enhanced oil recovery consisting in introducing into the injection water a solution containing at least one polymer and at least one surfactant, the surfactant/polymer weight ratio being between 1 and 10 and the concentration of surfactant in the solution being greater than 100 ppm (parts per million), characterized in that said polymer contains at least one hydrophobic cationic monomer.
C09K 8/584 - Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific surfactants
C09K 8/588 - Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific polymers
E21B 43/22 - Use of chemicals or bacterial activity
15.
WATER-SOLUBLE POST-BRANCHED CATIONIC ACRYLAMIDE POLYMERS AND USE THEREOF
The invention relates to a cationic (co)polymer obtained by means of a Hofmann degradation reaction in aqueous solution in the presence of an alkali and/or alkaline-earth hydroxide and an alkali and/or alkaline-earth hypohalide on a base (co)polymer containing at least one nonionic monomer selected from the group comprising acrylamide (and/or methacrylamide), N,N dimethylacrylamide and/or acrylonitrile, characterised in that it is branched after the Hofmann degradation reaction, in the presence of at least one polyfunctional branching agent, and in that it is soluble in water.
C08F 226/02 - Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen by a single or double bond to nitrogen
The invention relates to acrylamide cationic copolymers obtained by a so-called Hofman degradation reaction using an alkaline and/or alkaline-earth hydroxide and an alkaline and/or alkaline-earth hypohalide. The invention also relates to the use of these copolymers essentially as resistance agents for paper and/or coagulation agents. The copolymers are characterised in that they have a desalination coefficient (Cd) higher than 0.6, preferably higher than 0.65, and advantageously higher than 0.7.
The invention relates to stable branched cationic or amphoteric (co)polymers derived from acrylamide, obtained by means of the degradation reaction known as the Hofmann reaction, using an alkaline and/or alkaline earth hydroxide and calcium hypochlorite, and uses of same primarily as flocculating, retaining and/or draining agents.
A fertilizer granule contains, as a binder, at least one organic polymer. The organic polymer is a hydrosoluble polymer that is at least partially cationic.
A01N 25/00 - Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of applicationSubstances for reducing the noxious effect of the active ingredients to organisms other than pests
A hydro-seeding composition having the form of an aqueous mixture comprising a polyacrylamide polymer and seeds. The polyacrylamide polymer is a potassium anionic polymer salt or an ammonium anionic polymer salt, instead of a sodium-based polyacrylamide polymer. The hydro-seeding composition may also include various soil amendments. The seeds are grass seeds or plant seeds.
C09K 17/00 - Soil-conditioning materials or soil-stabilising materials
B29C 47/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor (extrusion blow-moulding B29C 49/04)
C08G 18/38 - Low-molecular-weight compounds having hetero atoms other than oxygen
C08F 220/12 - Esters of monohydric alcohols or phenols
patents
