Compositions and Methods for the Stabilization of Clay Containing Soils

The invention is directed to stabilizing functionalized polymers and compositions containing polysaccharides and polysaccharide derivatives functionalized with amine, alkyl and/or alkyl/amine moieties, and methods for reducing swelling of soils and especially clay-containing soils with stabilization functionalized polymers and compositions of the invention. 1. A soil stabilization process comprising:providing a composition comprised of a polymer containing one or more amine and/or alkyl moieties;mixing the composition with an aqueous liquid to form a stabilization solution; andapplying the stabilization solution to a soil.2. The process of claim 1 , wherein the soil stabilization process is performed in association with a mining operation claim 1 , an excavation operation claim 1 , or a drilling operation.3. The process of claim 1 , wherein the soil comprises one or more of minerals claim 1 , dirt claim 1 , organic material claim 1 , inorganic material claim 1 , shale claim 1 , red mud claim 1 , rock claim 1 , mudrock claim 1 , clay claim 1 , slag claim 1 , and tailings.4. The process of claim 1 , wherein the composition is a liquid.5. The process of claim 1 , wherein the composition has a pH of from about 5-8.6. The process of claim 1 , wherein the polymer comprises a saccharide claim 1 , a polysaccharide or a derivative thereof claim 1 , wherein the derivative comprises an oxidized saccharide or polysaccharide.7. The process of claim 6 , wherein the polymer comprises dextran claim 6 , guar gum claim 6 , scleroglucan claim 6 , welan claim 6 , xanthan gum claim 6 , schizophyllan claim 6 , levan claim 6 , chitosan claim 6 , cellulose or a combination thereof.8. The process of claim 1 , wherein the polymer comprises dextran with a molecular weight of about 3 kD to about 2 claim 1 ,000 kD.9. The process of claim 8 , wherein the dextran is coupled to from 0-3 alkylamine moieties per monosaccharide unit and 20 percent or more of the monosaccharide units contain ...

Compositions and Methods for the Removal of Sulfates and Metals From Waste Water

The invention is directed to compounds, compositions and methods for the removal of contaminants from fluids and, in particular sulfates and/or metals from industrial waste water. Compounds and compositions of the invention contain polysaccharides and other organic molecules. These flocculating agents are safe and effective, requiring no special handling procedures. Flocculation compounds include biopolymers of dextran, modified dextran and blends of dextrans, plus other organic and/or inorganic molecules. With the addition of flocculants of the invention to waste water, contaminants such as sulfate and toxic heavy metals can be safely, easily and efficiently removed. 1. A flocculant comprising a polymer and a humic acid , wherein the polymer comprises a polysaccharide.2. The flocculant of claim 1 , wherein the polysaccharide comprises dextran claim 1 , guar gum claim 1 , scleroglucan claim 1 , welan claim 1 , xanthan gum claim 1 , schizophyllan claim 1 , pullulan claim 1 , levan claim 1 , cellulose claim 1 , modified polysaccharides claim 1 , blends of polysaccharides claim 1 , and/or combinations thereof.3. The flocculant of claim 2 , wherein the modified polysaccharide comprises dextran sulfate claim 2 , dextran phosphate claim 2 , acidified dextran and/or combinations thereof.4. The flocculant of claim 1 , wherein the polysaccharide contains one or more acidic groups.5. The flocculant of claim 4 , wherein the one or more acidic groups comprises at least one diacid group.6. The flocculant of claim 4 , wherein the one or more acidic groups contain one or more carbon linkers.7. The flocculant of claim 1 , wherein the polymer contains substitutions of one or more monomers of the polymer.8. The flocculant of claim 7 , which contains substitutions of up to 100 percent of the monomers.9. The flocculant of claim 1 , further comprising one or more inorganic salts.10. The flocculant of claim 9 , wherein the one or more inorganic salts comprises calcium oxide claim 9 , ...

Polysaccharide Compositions and Particulate Materials Coated Therewith

Loose particulate materials can be problematic in various aspects. For example, loose particulate materials may generate dust or be difficult to consolidate together. Fines in loose particulate materials may also be an issue. Coated particulates may alleviate some of the foregoing issues. Suitable coated particulates may comprise a particulate material comprising sand or a ceramic, and a polysaccharide composition coated upon the particulate material, the polysaccharide composition comprising a functionalized polysaccharide. Other particulate materials such as wood chips and animal litter particulates may be coated with functionalized polysaccharides to achieve similar advantages. 114-. (canceled)15. An animal litter product comprising:a particulate base litter material; anda polysaccharide composition coated upon the particulate base litter material, the polysaccharide composition comprising a crosslinked polysaccharide.16. The animal litter product of claim 15 , wherein the particulate base litter material comprises a clay material.17. The animal litter product of claim 15 , wherein the polysaccharide composition further comprises a clay material.18. The animal litter product of claim 17 , wherein the clay material comprises bentonite.19. The animal litter product of claim 15 , wherein the crosslinked polysaccharide comprises a crosslinked dextran claim 15 , a crosslinked levan claim 15 , a crosslinked guar claim 15 , or any combination thereof.20. An animal litter product comprising:a particulate base litter material; anda polysaccharide composition coated upon the particulate base litter material, the polysaccharide composition comprising a clay material and a partially oxidized polysaccharide formed from a parent polysaccharide comprising a plurality of monosaccharide rings, in which at least a portion of the monosaccharide rings are oxidatively opened in the partially oxidized polysaccharide.21. The animal litter product of claim 20 , wherein the clay material ...

Crosslinked polysaccharide compositions and concerte blends containing the same

Compositions comprising crosslinked polysaccharides, particularly levan and/or dextran, may provide advantageous benefits when admixed with concrete blends. Suitable compositions may comprise a biologically sourced surfactant, and a crosslinked polysaccharide, in which the crosslinked polysaccharide comprises at least one crosslinking group bonded via ether linkages to a first polysaccharide chain and a second polysaccharide chain. Concrete blends may comprise such compositions, a cement and water. Methods for forming and/or using the concrete blends may comprise allowing the concrete blends to form a hardened mass.

ENHANCED BINDERS FOR IRON ORE PELLETING AND CEMENT ADHESIVE MATERIALS

The present invention is directed to composition and methods for iron ore pelleting and cement binders. More particularly, the binders are bio compatible crosslinked levan and crosslinked polysaccharides or groups or salts thereof. 1. A binder composition comprising:a cross-linked polysaccharide; andbentonite.2. The composition of claim 1 , wherein the polysaccharide comprises.3. The composition of claim 1 , wherein the cross link of the cross-linked polysaccharide contains from 1 to 10 carbons.4. The composition of claim 1 , wherein the cross linked polysaccharide comprises levan cross linked with epichlorohydrin.5. The composition of claim 1 , wherein the polysaccharide contains substitutions along from one or more of the saccharide unites of the polysaccharide.6. The composition of claim 1 , wherein the polysaccharide contains substitutions along each of the saccharide unites of the polysaccharide.7. A method of pelletizing a mineral ore comprising:providing mineral ore as boulders or fines, wherein boulders are reduced to approximately 5-30 mm in size;{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'adding the binder composition of to the mineral ore and forming agglomerates; and'}pelletizing the agglomerates forming mineral bore pellets.8. The method of claim 7 , wherein the mineral ore comprises iron ore.9. The method of claim 8 , wherein the iron ore pellets have a dry compressive strength that is comparable to or greater than iron ore pellets manufactured with conventional binder compositions.10. The method of claim 8 , wherein the iron ore pellets have a ball drop strength that is comparable to or greater than iron ore pellets manufactured with conventional binder compositions.11. The method of claim 8 , wherein the iron ore pellets have a pellet friability that is comparable to or greater than iron ore pellets manufactured with conventional binder compositions.12. The method of claim 8 , wherein the iron ore pellets have a tensile strength that is ...

BIOPOLYMERS FOR FUGITIVE DUST CONTROL

The present invention is directed to compositions and methods for dust control in particular in industrial operations such as mining. More particularly, the dust controlling agents are functionalized polysaccharides, partially oxidized polysaccharides that may or may not also be functionalized, or salts thereof. 1. A method of dust control in an environment comprising:mixing a polymer containing one or more amine and/or alkyl moieties and an aqueous liquid to form a mixture; andapplying the mixture to an area that generates dust.2. The method of claim 1 , wherein the polymer comprises natural claim 1 , oxidized or partially oxidized saccharide claim 1 , polysaccharide claim 1 , saccharide or polysaccharide derivative claim 1 , or a combination thereof.3. The method of claim 2 , wherein the partially oxidized saccharide claim 2 , polysaccharide claim 2 , saccharide derivative claim 2 , or polysaccharide derivative contains intact glycosidic bonds.4. The method of claim 1 , wherein the polymer comprises a levan claim 1 , chitosan claim 1 , guar gum claim 1 , starch claim 1 , scleroglucan claim 1 , welan claim 1 , xanthan gum claim 1 , dextran claim 1 , schizophyllan claim 1 , cellulose claim 1 , or combinations thereof.5. The method of claim 1 , wherein the polymer has a molecular weight of from about 5 kDa to about 50 claim 1 ,000 kDa.6. The method of claim 1 , wherein the polymer comprises amino dextran claim 1 , amino levan claim 1 , amino guar or a combination thereof.7. The method of claim 1 , wherein the one or more amine moieties comprises one or more primary claim 1 , diamine and/or tetra-amine moieties.8. The method of claim 1 , wherein the polymer comprises partially oxidized dextran diethyl amine claim 1 , partially oxidized levan diethyl amine claim 1 , partially oxidized sugar guar diethyl amine claim 1 , or a combination thereof.9. The method of claim 1 , wherein the one or more alkyl moieties comprises one or more alkane claim 1 , alkene claim 1 , ...

COMPOSITIONS AND METHODS FOR THE STABILIZATION OF CLAY CONTAINING SOILS

The invention is directed to stabilizing functionalized polymers and compositions containing polysaccharides and polysaccharide derivatives functionalized with amine, alkyl and/or alkyl/amine moieties, and methods for reducing swelling of soils and especially clay-containing soils with stabilization functionalized polymers and compositions of the invention. 1. A process comprising: 'wherein the partially oxidized polysaccharide comprises an amine moiety at a site of oxidative opening; and', 'providing a composition comprising an aqueous liquid and a partially oxidized polysaccharide in which glycosidic bonds are retained from a parent polysaccharide and partial oxidation comprises oxidative opening of a monosaccharide unit of the parent polysaccharide;'} 'wherein the partially oxidized polysaccharide stabilizes a clay in the clay-containing formation.', 'introducing the composition into a clay-containing formation;'}2. The process of claim 1 , wherein the composition is introduced into the clay-containing formation during a drilling operation.3. The process of claim 1 , wherein the composition is introduced into the clay-containing formation during a stimulation operation.4. The process of claim 3 , wherein the stimulation operation is a matrix acidizing operation or a hydraulic fracturing operation.5. The process of claim 1 , wherein the composition is introduced into the clay-containing formation during a clean-up operation.6. The process of claim 1 , wherein the partially oxidized polysaccharide comprises a partially oxidized dextran claim 1 , a partially oxidized levan claim 1 , or a partially oxidized guar.7. The process of claim 1 , wherein the parent polysaccharide comprises a plurality of monosaccharide units and about 5%-80% of the plurality of monosaccharide units are oxidatively opened and bear an amine moiety at the site of oxidative opening.8. The process of claim 1 , wherein the composition further comprises a surfactant claim 1 , a defoaming agent ...

Compositions and methods for the stabilization of clay-containing soils.

La invención está dirigida a polímeros funcionalizados y composiciones de estabilización que contienen polisacáridos y derivados polisacáridos funcionalizados con restos amina, alquilo y/o alquilo/amina y métodos para reducir el hinchamiento de suelos y especialmente suelos que contienen arcilla con polímeros y composiciones de estabilización funcionalizados de la invención. La presente invención supera los problemas y desventajas asociados con estrategias y diseños actuales y proporciona nuevas herramientas, composiciones y métodos para estabilizar suelos y otros materiales.

Amine-functionalized saccharide polymers prepared by hypochlorite oxidation

Amine-functionalized saccharide polymers, including oligosaccharides and polysaccharides, may be effective for promoting clay stabilization in subterranean formations. Oxidative synthesis of amine-functionalized saccharide polymers using sodium hypochlorite pentahydrate as an oxidation reagent may afford a different distribution and type of sites of oxidative opening as compared to other types of oxidation reagents. Amine-functionalized saccharide polymers may be prepared by exposing a saccharide polymer comprising a trans-vicinal diol to an oxidation reagent comprising sodium hypochlorite pentahydrate, reacting the trans-vicinal diol to form a site of oxidative opening bearing at least one aldehyde, exposing the at least one aldehyde to an amine to form an imine intermediate at the site of oxidative opening, and reducing the imine intermediate into a secondary or tertiary amine at the site of oxidative opening.

Compositions and methods for the stabilization of clay-containing soils

Amine-functionalized saccharide polymers prepared by hypochlorite oxidation

Amine-functionalized saccharide polymers, including oligosaccharides and polysaccharides, may be effective for promoting clay stabilization in subterranean formations. Oxidative synthesis of amine-functionalized saccharide polymers using sodium hypochlorite pentahydrate as an oxidation reagent may afford a different distribution and type of sites of oxidative opening as compared to other types of oxidation reagents. Amine-functionalized saccharide polymers may be prepared by exposing a saccharide polymer comprising a trans-vicinal diol to an oxidation reagent comprising sodium hypochlorite pentahydrate, reacting the trans-vicinal diol to form a site of oxidative opening bearing at least one aldehyde, exposing the at least one aldehyde to an amine to form an imine intermediate at the site of oxidative opening, and reducing the imine intermediate into a secondary or tertiary amine at the site of oxidative opening.

Cross-linked levan blends as lost circulation materials

The present invention is directed to compositions and methods for reducing lost circulation in drilling wells with compositions preferably comprising cross linked levan and calcium carbonate mixed with clay minerals such as kaolinite and other minerals blends or salts thereof.

Ammonium-Functionalized Saccharide Polymers and Methods for Production and Use Thereof

Metal contaminants may be problematic in a number of industries, particularly in the mining industry. Fines production and dust control may be similarly problematic in many industries, including the mining industry. Reaction products formed from a saccharide polymer and diallyldimethylammonium chloride (DADMAC) under room temperature to heating conditions in the presence of a hydroxide base or a radical initiator may be effective for promoting removal of metal contaminants from clay-containing substances, such as through froth flotation. The reaction products may also be effective for mitigating fines production and providing dust control by forming a coating upon a plurality of particulates.

Compositions and methods for the stabilization of clay containing soils

Polysaccharides may be partially oxidized by oxidative opening of a monosaccharide unit while still retaining glycosidic bonds. Such polysaccharides may be further functionalized with an amine moiety at a site of oxidative opening. Polysaccharides that are partially oxidized and amine-functionalized in this manner may be combined with an aqueous liquid to form compositions suitable for stabilizing clays in clay-containing formations. Clay stabilization may promote reduced swelling of the clays in the presence of water.

Cross-linked levan blends as lost circulation materials

Compositions and methods for the removal of sulfates and metals from waste water

The invention is directed to compounds, compositions and methods for the removal of contaminants from fluids and, in particular sulfates and/or metals from industrial waste water. Compounds and compositions of the invention contain polysaccharides and other organic molecules. These flocculating agents are safe and effective, requiring no special handling procedures. Flocculation compounds include biopolymers of dextran, modified dextran and blends of dextrans, plus other organic and/or inorganic molecules. With the addition of flocculants of the invention to waste water, contaminants such as sulfate and toxic heavy metals can be safely, easily and efficiently removed.

Polysaccharide compositions and particulate materials coated therewith

Loose particulate materials can be problematic in various aspects. For example, loose particulate materials may generate dust or be difficult to consolidate together. Fines in loose particulate materials may also be an issue. Coated particulates may alleviate some of the foregoing issues. Suitable coated particulates may comprise a particulate material comprising sand or a ceramic, and a polysaccharide composition coated upon the particulate material, the polysaccharide composition comprising a functionalized polysaccharide. Other particulate materials such as wood chips and animal litter particulates may be coated with functionalized polysaccharides to achieve similar advantages.

Biopolímeros para el control de polvo fugitivo

La presente invención está dirigida a composiciones y métodos para el control del polvo, en particular en operaciones industriales tales como la minería. Más particularmente, los agentes de control del polvo son polisacáridos funcionalizados, polisacáridos parcialmente oxidados que pueden o no estar también funcionalizados, o sales de los mismos. (Traducción automática con Google Translate, sin valor legal)

Biopolymers for fugitive dust control

Biopolimery do kontroli unoszenia się pyłów

Aqueous compositions comprising functionalized saccharide polymers for dewatering of particulates

Aqueous compositions comprising an aqueous carrier fluid, a reaction product of a saccharide polymer and a fatty acid or a fatty ester obtained in the aqueous carrier fluid in the presence of a hydroxide base and a neutral surfactant or a reaction product form thereof, a zwitterionic surfactant, and optionally an amine-functionalized saccharide polymer may facilitate dewatering of a plurality of particulates. The reaction product of the saccharide polymer and the fatty acid or the fatty ester, in combination with the neutral surfactant or the reaction product form thereof, and the zwitterionic surfactant may also promote increased aqueous fluid flow through the plurality of particulates. The amine-functionalized saccharide polymer may further increase dewatering of the plurality of particulates and improve clarity of an aqueous filtrate obtained from the plurality of particulates.

Compositions and methods for the stabilization of clay-containing soils

The invention is directed to stabilizing functionalized polymers and compositions containing polysaccharides and polysaccharide derivatives functionalized with amine, alkyl and/or alkyl/amine moieties, and methods for reducing swelling of soils and especially clay-containing soils with stabilization functionalized polymers and compositions of the invention. The present invention overcomes the problems and disadvantages associated with current strategies and designs and provides new tools, compositions and methods for stabilizing soils and other materials.

Enhanced binders for iron ore pelleting and cement adhesive materials

The present invention is directed to composition and methods for iron ore pelleting and cement binders. More particularly, the binders are bio compatible crosslinked levan and crosslinked polysaccharides or groups or salts thereof.

Brine-tolerant compositions comprising fatty acid or fatty ester reaction products of saccharide polymers

Surfactant compositions comprising a reaction product of a saccharide polymer and a fatty acid or a fatty ester may be obtained in an aqueous fluid in the presence of a hydroxide base and a neutral surfactant or a reaction product form thereof, the saccharide polymer comprising a dextran, a dextrin compound, or any combination thereof. One or more zwitterionic surfactants may be combined with the surfactant composition in a ratio sufficient to render the resulting combined surfactant composition brine-tolerant, even when both the reaction product and one or more of the zwitterionic surfactant(s) are brine-intolerant. The one or more zwitterionic surfactants may be further selected to render the combined surfactant composition non-emulsifying toward oleaginous fluids.

Emulsifying compositions comprising fatty acid or fatty ester reaction products of saccharide polymers formulated with mixed surfactants

Aqueous compositions comprising a reaction product of a saccharide polymer and a fatty acid or a fatty ester may be obtained in an aqueous fluid in the presence of a hydroxide base and a neutral surfactant or a reaction product form thereof, the saccharide polymer comprising a dextran, a dextrin compound, or any combination thereof. When further combined with a zwitterionic surfactant in a sufficient concentration, emulsifying compositions may be obtained. The emulsifying compositions may be contacted with an oleaginous substance to produce an emulsified fluid, which may define an oil-in-water emulsion.

Biopolymers for fugitive dust control

The present invention is directed to compositions and methods for dust control in particular in industrial operations such as mining. More particularly, the dust controlling agents are functionalized polysaccharides, partially oxidized polysaccharides that may or may not also be functionalized, or salts thereof.

Biopolymerer til styring af flygtigt støv

Polysaccharide compositions and particulate materials coated therewith

Loose particulate materials can be problematic in various aspects. For example, loose particulate materials may generate dust or be difficult to consolidate together. Fines in loose particulate materials may also be an issue. Coated particulates may alleviate some of the foregoing issues. Suitable coated particulates may comprise a particulate material comprising sand or a ceramic, and a polysaccharide composition coated upon the particulate material, the polysaccharide composition comprising a functionalized polysaccharide. Other particulate materials such as wood chips and animal litter particulates may be coated with functionalized polysaccharides to achieve similar advantages.

Compositions and methods for the removal of sulfates and metals from waste water

The invention is directed to compounds, compositions and methods for the removal of contaminants from fluids and, in particular sulfates and/or metals from industrial waste water. Compounds and compositions of the invention contain polysaccharides and other organic molecules. These flocculating agents are safe and effective, requiring no special handling procedures. Flocculation compounds include biopolymers of dextran, modified dextran and blends of dextrans, plus other organic and/or inorganic molecules. With the addition of flocculants of the invention to waste water, contaminants such as sulfate and toxic heavy metals can be safely, easily and efficiently removed.

Polimeros de sacaridos con funcionalidad amina preparados por oxidacion con hipoclorito.

Los polímeros de sacáridos con funcionalidad amina, que incluye oligosacáridos y polisacáridos, pueden ser efectivos para promover la estabilización de arcilla en formaciones subterráneas. La síntesis oxidativa de polímeros de sacáridos con funcionalidad amina utilizando hipoclorito de sodio pentahidratado como un reactivo de oxidación pueden proporcionar una diferente distribución y tipo de sitio de abertura oxidativa en comparación a otros tipos de reactivos de oxidación. Los polímeros de sacáridos con funcionalidad amina se pueden preparar al exponen un polímero de sacárido que comprende un dio trans-vecinal a un reactivo de oxidación que comprende hipoclorito de sodio pentahidratado, al hacer reaccionar el diol transvecinal para formar un sitio de abertura oxidativa que contiene al menos un aldehído, al exponer el por lo menos un aldehído a una amina para formar un compuesto intermedio de imina en el sitio de abertura oxidativa, y al reducir el compuesto intermedio de imina en una amina secundaria o terciaria en el sitio de abertura oxidativa.