Soil, Diatomaceous Earth, Clay, Slate Or Shale Containing, Or Material For Treating Soil Or Earth (e.g., Soil Stabilization, Etc.) Patents (Class 106/811)
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Patent number: 8187589Abstract: The present invention relates to a process for stabilizing aqueous preparations of minerals by adding reuterin to the aqueous preparations, to the use of reuterin for the stabilization of such aqueous mineral preparations, and the aqueous mineral preparations containing reuterin.Type: GrantFiled: August 19, 2009Date of Patent: May 29, 2012Assignee: Omya Development AGInventors: Patrick Schwarzentruber, Nicola Di Maiuta
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Publication number: 20120073813Abstract: A drilling fluid, spacer fluid and cementing compositions for use in subterranean wells are disclosed along with methods for making using same, where the compositions include a weighting system having an effective amount of a metal silicon alloy, mixtures of metal silicon alloys, or mixtures of metal silicon alloys and conventional weighting agents, to produce compositions having a desired high density, while retaining other fluid properties such as pumpability, gas tight sealing, low tendency to segregate, and reduced high temperature cement strength retrogression.Type: ApplicationFiled: September 28, 2010Publication date: March 29, 2012Applicant: CLEARWATER INTERNATIONAL, LLCInventors: Frank Zamora, Marilyn J. Bramblett, Mario B. Hernandez, Sarkis R. Kakadjian, Ron Powell, Olusegun Matthew Falana
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Publication number: 20120070232Abstract: Slurry walls and methods of using those slurry walls to seal unlined solar ponds are provided. The slurry walls are formed from a mixture comprising clay and cement in water. A trench is keyed into the dike surrounding the solar pond, down to a geotechnically predetermined level. The slurry is deposited into the trench and allowed to harden, after which it is covered with a membrane or other covering. The inventive slurry walls reduce, and preferably prevent, leakage of water from the solar pond.Type: ApplicationFiled: September 22, 2011Publication date: March 22, 2012Applicant: GREAT SALT LAKE MINERALS CORPORATIONInventors: Mark Reynolds, Thomas S. Burton, Corey R. Milne, Steven R. Day
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Patent number: 8123854Abstract: A method of treating marine or river dredging sediments, especially harbour zone sediments, whose free water content is between 40% and 80% by weight, for the purpose of obtaining a solid material which is easy to handle, includes the following successive steps: mixing the sediments with a treatment composition including a sulphoaluminate binder and at least one other component selected from a sulphate source and a catalyst of the hydration reactions of the sulphoaluminate binder; a step of setting of the mixture, leading to a compact mixture having a free water content of less than 20% by weight; then fractionating the compact mixture. The sediment thus treated may be incorporated into concrete or mortar formulas, which then have leachable fractions of less than 1% by weight.Type: GrantFiled: September 29, 2009Date of Patent: February 28, 2012Assignee: Ciments FrancaisInventors: Pierre Cassat, Emmanuel Moudilou, Bruno le Rolland
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Patent number: 8105433Abstract: It is an object of the invention to provide a cement admixture that can form concrete having a sufficient self-healing capability and satisfactorily maintaining its self-healing capability for prolonged periods. The cement admixture of the invention contains an expanding material and an alumina-silicate with swelling properties. The cement admixture is combined with cement to form a cement composition. The cement composition is mixed with water and an aggregate to provide concrete with an excellent self-healing capability.Type: GrantFiled: February 13, 2009Date of Patent: January 31, 2012Assignees: The University of Tokyo, National University Corporation Yokohama National University, East Japan Railway CompanyInventors: Toshiharu Kishi, Tae-Ho Ahn, Akira Hosoda, Kaoru Kobayashi
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Publication number: 20120018155Abstract: A method of cementing in a subterranean formation comprising the steps of: (A) introducing a cement composition into the subterranean formation, the cement composition comprising: (i) cement; (ii) water; and (iii) a high-density additive selected from the group consisting of silicon carbide, sintered bauxite, and any combination thereof, wherein the cement composition has a density of at least 16 pounds per gallon; and (B) allowing the cement composition to set. According to an embodiment, the high-density additive is in a concentration of at least 30% by weight of the cement. A cement composition for use in an oil or gas well comprises: (A) cement; (B) water; and (C) a high-density additive selected from the group consisting of silicon carbide, sintered bauxite, and a combination thereof, wherein the high-density additive is in a concentration of at least 30% by weight of the cement, and wherein the cement composition has a density of at least 16 pounds per gallon.Type: ApplicationFiled: July 21, 2010Publication date: January 26, 2012Inventors: Rahul Chandrakant Patil, Sandip Prabhakar Patil, Keith Armstrong
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Patent number: 8083845Abstract: Composition and process of a composition of additivated sodic bentonite through the addition of dextrin and sugar (saccharose), preferably refined sugar, or starch and sugar (saccharose), preferably refined sugar, in specific quantities during the process of calcic bentonite activation by means of incorporation of sodium carbonate into the in natura ore, belonging to the field of chemical industry for use in the composition of green sand for cast molding, offering a wide range of advantages in comparison with the existing formulas.Type: GrantFiled: October 19, 2007Date of Patent: December 27, 2011Assignee: Coque do Sul do Brasil LtdaInventor: Arnaldo Romanus
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Patent number: 8057594Abstract: The various embodiments of the present invention relate generally to high strength foam materials and methods of making the same. More particularly, various embodiments of the present invention relate to high strength foam materials comprising pozzolans, such as cenospheres derived from fly ash. An embodiment of the present invention comprises, a pozzolan foam material comprising a pozzolan, an alkali, a silicate, and an organosilicon compound. Various embodiments of the present invention are directed to strong, lightweight materials that are environmentally-friendly and can be economically manufactured.Type: GrantFiled: June 19, 2008Date of Patent: November 15, 2011Assignee: Georgia Tech Research CorporationInventors: Mulalo Doyoyo, Paul Biju-Duval
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Patent number: 8007586Abstract: A clay plaster formulation and application. The clay plaster is a mixture of various clays, and aggregate. This plaster is both functional and decorative and is for use on new and existing construction.Type: GrantFiled: June 23, 2010Date of Patent: August 30, 2011Inventor: Armin Croft Elsaesser
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Publication number: 20110073311Abstract: The invention provides geopolymeric compositions, which have controllable thickening and setting times for a wide range of temperatures and a large range of geopolymer slurry densities. The geopolymer slurry compositions have good mixability and pumpability, whilst the set materials develop good compressive strength and permeability. The invention discloses a method for preparing geopolymer for oilfield cementing applications. The geopolymeric compositions according to the invention comprises a suspension made of an aluminosilicate source, a carrier fluid, an activator taken from the list constituted by: a metal silicate, a metal aluminate, an alkali activator, or a combination thereof, and an aluminum containing compound taken in the list constituted of bauxite, aluminum oxide and aluminum salt and the suspension is a pumpable composition in oilfield industry and the suspension is able to set under well downhole conditions.Type: ApplicationFiled: February 17, 2009Publication date: March 31, 2011Inventors: Olivier Porcherie, Elena Pershikova
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Publication number: 20110033247Abstract: This invention describes a simple and effective method, through introducing fluoride ion releasing agent/salt(s), such as sodium fluoride, for preventing, reducing or eliminating the undesirable construction heave/expansion/distresses/damage, characterized by loss of dimensional stability and integrity of expansive soil layers or concrete structural elements, primarily caused by the formation of ettringite or similar minerals. We demonstrated the technology that can be easily applied to new construction sites and to the sites where repair/retrofit of the existing or potential distresses in soil subgrade, base, subbase, or construction materials is needed. Experiments have demonstrated the effectiveness and efficiency of the technology with applications to stabilization of soils with all range of aluminum and sulfate contents including more than 3000 ppm of sulfate, and to treating cementitious construction materials.Type: ApplicationFiled: August 6, 2009Publication date: February 10, 2011Applicant: AMERICAN ACCUTECH LTD. CO.Inventors: Yun Deng, Lianxiang Du
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Publication number: 20110028607Abstract: Methods and compositions that include a method of cementing comprising providing a cement composition comprising water, a hydraulic cement, and an additive comprising at least one additive selected from the group consisting of a stevia retarder and inulin; placing the cement composition in a subterranean formation; and permitting the cement composition to set in the formation.Type: ApplicationFiled: October 8, 2010Publication date: February 3, 2011Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: Ronnie G. Morgan, William J. Caveny, Rickey L. Morgan
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Publication number: 20100319587Abstract: According to the present invention, a hydraulic powder is prepared by including a step of grinding a hydraulic compound in the presence of (A) glycerin and (B) polyethyleneglycol that are present in a fixed weight ratio.Type: ApplicationFiled: August 7, 2008Publication date: December 23, 2010Applicant: Kao CorporationInventors: Masaaki Shimoda, Masafumi Shonaka, Toshimasa Hamai, Kenichi Kobata
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Patent number: 7846244Abstract: The sealing agent for waterproof barriers in the form of a clay and cement suspension made of polymineral clays, characterized by the fact that it contains 3-15% parts by weight of cement, up to 65% parts by weight of fly-ash and/or rock dust of similar granulation, and 30-60% parts by weight, or better up to 50% parts by weight, of water suspension of clay, heavy or loamy.Type: GrantFiled: March 15, 2007Date of Patent: December 7, 2010Inventors: Grazyna Janik, Roman Kus
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Patent number: 7842632Abstract: A pulling roll for glass manufacture comprised of a high-temperature millboard material. The millboard comprises aluminosilicate refractory fiber, silicate, mica, and kaolin clay. A method of manufacturing a pulling roll is disclosed, together with a roll produced by the methods disclosed herein. The method comprises forming a pulling roll and densifying at least a portion of the pulling roll by exposing to the pulling roll to high temperatures.Type: GrantFiled: February 10, 2009Date of Patent: November 30, 2010Assignee: Corning IncorporatedInventors: Dean Veral Neubauer, Maurice Lacasse
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Publication number: 20100258038Abstract: A clay plaster formulation and application. The clay plaster is a mixture of various clays, and aggregate. This plaster is both functional and decorative and is for use on new and existing construction.Type: ApplicationFiled: June 23, 2010Publication date: October 14, 2010Inventor: Armin Croft Elsaesser
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Patent number: 7803227Abstract: A flexible seal for constructions and method of using such seals where the seals include a mixture of soil and a polymeric additive including polymeric methacrylamide, which additive opens a water casing around soil grains, wherein 1 m3 of soil contains up to 0.5% by volume of the additive wherein the additive also contains saponified paraffins or further contains between 15 kg and 25 kg of cement and/or lime per 1 m3 of soil which cement and/or lime in turn contains 1% by weight to 10% by weight of the additive or wherein a proportion of between 20% by weight and 50% by weight of water is added to the mixture to make it capable of flow.Type: GrantFiled: March 16, 2004Date of Patent: September 28, 2010Assignees: Concolid Technik Deutschland GmbH, Sachsische Bau GmbHInventors: Knut Asendorf, Falk Kittler
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Publication number: 20100224101Abstract: The method for recycling construction and demolition fines involves using mixed fines from construction and demolition debris that would otherwise be disposed of at landfills as an ingredient in cement or concrete. The mixed fines contain a plurality of materials selected from the group consisting of asphalt, plastics, ceramics, fiberglass and batt insulation, soil, dust, drywall, wood, plaster, paper, cardboard, dirt. The fines may also contain particles of recyclable materials, such as concrete, bricks, mortar, metals, glass, and the like. The fines may range in size from microns up to 6 inches in at least one direction. The recycler may incorporate the fines into a concrete mix for bulk sale to commercial enterprises, or may himself form precast, lightweight concrete products, such as decorative columns, pedestals and table bases, trim moldings and cornices, door surrounds, etc.Type: ApplicationFiled: March 5, 2009Publication date: September 9, 2010Inventors: Robert S. Cummings, Paul G. Chuckran
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Patent number: 7789960Abstract: A clay plaster formulation and application. The clay plaster is a mixture of various clays, and aggregate. This plaster is both functional and decorative and is for use on new and existing construction.Type: GrantFiled: February 3, 2009Date of Patent: September 7, 2010Inventor: Armin Croft Elsaesser
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Publication number: 20100212549Abstract: The present invention concerns a method for preparing materials containing binder systems derived from amorphous silica and bases as well as the materials prepared by the method. Relative to known methods, the present invention allows for a continuous production of material as the two components of the binder are brought onto into contact where the binder system is to be applied. The product achieved by the invention has a broad range of applications, such as for construction materials, insulating materials, fire proof materials, reinforcement materials etc. The present invention also relates to a method for preparing materials containing binder systems derived from amorphous inorganic material and bases as well as the materials prepared by the method.Type: ApplicationFiled: January 22, 2010Publication date: August 26, 2010Inventors: Kjeld HOLBEK, Erik Gydesen Sogaard
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Publication number: 20100175588Abstract: Cement compositions and methods for making cement compositions are provided. The cement compositions can comprise at least one oxide having a particle size of less than about 600 nm.Type: ApplicationFiled: February 26, 2008Publication date: July 15, 2010Applicants: TATA CHEMICALS LIMITED, NANODYNAMICS, INC.Inventors: Richard J. Schorr, Suvankar Sengupta, Richard L. Helferich, Gary M. Gordon, Debabrata Rautaray
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Patent number: 7740682Abstract: An improved composite material, and method of manufacture thereof, comprising varying amounts tungsten powder, or metal/alloy powder of similar density, and clay or silicone is disclosed. The improved composite material may be useful as a replacement for lead and lead-based composites where similar densities are required but the use of lead is undesirable. The disclosed composite material permits a large variety of tungsten powder particle sizes to be utilized and results in improved ductility over known tungsten powder composites.Type: GrantFiled: July 19, 2006Date of Patent: June 22, 2010Inventors: Randall C. Ragan, Randall M. Ragan, Richard Vaughn Culbertson
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Publication number: 20100139527Abstract: The process is described for the dry mixing of fibers of different types and sizes with materials formulated with cementants or agglutinant components, granular aggregates and able to include or otherwise other additional ingredients. The principal characteristics of the process are to ensure a correct incorporation of the fibers with the rest of the materials, increase the mechanical fastening of same with the rest of the components and facilitate the use of formulas with high fiber content (over-fibration).Type: ApplicationFiled: November 21, 2006Publication date: June 10, 2010Inventor: Carlos Javier Fernandez-Garcia
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Publication number: 20100095871Abstract: Methods and compositions that comprise sub-micron alumina for accelerating setting of a cement composition. An embodiment includes a method of cementing in a subterranean formation. The method may comprise introducing a cement composition into the subterranean formation, wherein the cement composition comprises hydraulic cement, sub-micron alumina, and water. The method further may comprise allowing the cement composition to set in the subterranean formation. Another embodiment includes a cement composition that may comprise hydraulic cement, sub-micron alumina, and water.Type: ApplicationFiled: January 4, 2010Publication date: April 22, 2010Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: Rahul Chandrakant Patil, B. Raghava Reddy, Abhimanyu Deshpande, Christopher L. Gordon, Craig W. Roddy, Jiten Chatterji, Roger S. Cromwell
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Publication number: 20090320720Abstract: A variety of methods and compositions are disclosed herein, including, in one embodiment, a method comprising: introducing a settable composition into a subterranean formation, wherein the settable composition comprises: a cementitious component comprising a hydraulic cement and cement kiln dust; a swellable particle; and water; and allowing the settable composition to set in the subterranean formation. Another embodiment comprises a settable composition comprising: a cementitious component comprising a hydraulic cement and cement kiln dust, a swellable particle, and water.Type: ApplicationFiled: September 11, 2009Publication date: December 31, 2009Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: Craig W. Roddy, Jiten Chatterji, D. Chad Brenneis, Bobby J. King
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Publication number: 20090199741Abstract: The invention relates to a method for producing a coated basic material for a hydraulic composition (11) comprising a basic material (14, 16) and water (15). According to the invention, the basic material can consist of several sub-groups (14, 16) and at least one hydraulic binding agent (14) and to produce the hydraulic composition the basic material (14, 16) and the water (15) are mixed in a mixer (8). Prior to the mixing of the hydraulic composition, the basic material (14, 16) is at least partially coated with an additive (13). The invention also relates to a coated basic material to be used in concrete production, to an additive for concrete production and to a method for producing a hydraulic composition.Type: ApplicationFiled: September 6, 2005Publication date: August 13, 2009Applicant: SIKA TECHNOLOGY AGInventors: Alexander Bleibler, Urs Mader, Alexander Stucheli, Christian M. Burge, Ralf Beissel, Beat Schnider
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Publication number: 20090183652Abstract: A clay plaster formulation and application. The clay plaster is a mixture of various clays, and aggregate. This plaster is both functional and decorative and is for use on new and existing construction.Type: ApplicationFiled: February 3, 2009Publication date: July 23, 2009Applicant: AMERICAN CLAY ENTERPRISES, LLCInventor: Armin Croft Elsaesser
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Patent number: 7556686Abstract: The present invention relates to a material composition using mainly yellow soil for molding structures for construction, such as a brick for construction, a heated floor plate, a block for construction, and the like. More particularly, the material composition for construction using mainly yellow soil, includes yellow soil, decomposed granite soil, a small amount of cement serving as a water-curing material, a solidifying agent serving as a material for solidification, acrylic monomers for improving the compactness of tissue to impart waterproofness and strength, and functional powder.Type: GrantFiled: June 24, 2008Date of Patent: July 7, 2009Inventor: Se-Kyu Im
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Patent number: 7556685Abstract: The invention is a composition of an architectural papier-mâché, and articles made therewith. Articles formed from using the architectural papier-mâché have excellent weather resistance, and can be used outdoors, as well as indoors. The composition is comprised of cellulose insulation and a joint compound. Cellulose insulation is a paper-based material, like newsprint or phonebook paper that is shredded and chemically treated with boric acid, which imparts resistance to mold, mildew, fungus, insects, moisture and flammable combustion.Type: GrantFiled: September 3, 2005Date of Patent: July 7, 2009Assignee: Nicholson-Goheen, LLCInventors: Jared Morris Nicholson, Sharon Anklin Goheen
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Publication number: 20090145334Abstract: The non-settling refractory mortar of the invention contains 100 parts of ceramic powder such as cordierite, mullite, alumina, or silicon carbide, 0.5 to 1.5 parts of clay mineral, and colloidal oxide solution, in which the Ca content in total solid component is defined at 0.01 to 0.5% as converted to oxide so as to be provided with thixotropic property. As a result, the coating performance is not lowered if stored for a long period after kneading, the dimension change rate after coating is small, and cracks or gaps are not formed on the coat surface. The median diameter of ceramic powder is preferred to be 10 to 50 ?m, and in order to reduce the dimension change rate after coating, the content of particles of 0.1 to 5 ?m in ceramic powder is desired to be 1 to 20%.Type: ApplicationFiled: February 21, 2008Publication date: June 11, 2009Applicants: NGK Insulators, Ltd., NGK Adrec Co., Ltd.Inventors: Tsuneo Komiyama, Osamu Yamakawa, Tetsuhiro Honjo, Akito Higuchi
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Patent number: 7517405Abstract: Disclosed herein is a composition for solidifying soil and industrial waste. The solidifying composition contains 16-24 wt % of straight asphalt, 0.06-0.10 wt % of an emulsifier for asphalt, 0.8-1.2 wt % of light oil, heavy oil or a mixture thereof, 0.01-0.03 wt % of calcium chloride, 0.8-1.2 wt % of lignin, 0.7-1.3 wt % of an acrylic emulsion-based asphalt modifier, 0.13-0.21 wt % of sodium hydroxide, 0.22-0.34 wt % of oleic acid, and the balance of water. A solidified material formed using this solidifying composition has increased density, strength and elasticity, improved durability and a short curing time. Furthermore, the solidifying composition enables soil and industrial waste to be recycled as a substitute for stone materials, such that it allows material sources to be readily secured in public or construction work fields, leading to a reduction in construction cost, and can also contribute to the preservation of the natural environment.Type: GrantFiled: June 27, 2007Date of Patent: April 14, 2009Assignee: Charista Global CorpInventor: Kap-Sok Yi
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Publication number: 20090090278Abstract: Method for producing an aqueous suspension, which is based on a hydraulic binder, and a hardened binder product. According to the invention, a composition of blending agents is added in the aqueous phase into the binder, which composition comprises calcium carbonate particles having an average particle size of 2-200 nm, in order to generate an aqueous suspension and, if needed, mineral fillers are added into this suspension, in order to produce a hardening plaster or concrete mixture. Besides calcium carbonate, the composition of blending agents can comprise calcium hydrogen carbonate and meta-kaolin sinter, too.Type: ApplicationFiled: November 20, 2006Publication date: April 9, 2009Applicant: NORDKALK OYJ ABPInventor: Pentti Virtanen
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Publication number: 20090078161Abstract: A method of reducing plastic shrinkage cracking in concrete compositions that includes a) combining 3-40 volume percent cement, 5-50 volume percent fine aggregate, 5-50 volume percent coarse aggregate, and 10-22 volume percent water to form a concrete mixture; b) during or after (a), adding 1.5-40 volume percent of prepuff particles to the concrete mixture to form a concrete composition; c) placing the concrete composition in a form; and d) allowing the concrete to set and harden to form a hardened concrete article substantially free of plastic shrinkage cracking. The prepuff particles have an average particle diameter of from 0.2 mm to 8 mm, a bulk density of from 0.02 g/cc to 0.64 g/cc, an aspect ratio of from 1 to 3. The concrete composition has a density of from about 40 to about 135 lb./ft3.Type: ApplicationFiled: September 17, 2008Publication date: March 26, 2009Applicant: NOVA CHEMICALS INC.Inventors: Daniel Woolfsmith, Larry Chappell, Luke Kimble
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Publication number: 20090071374Abstract: A dry mix cement composition including an alkaline multi-phase aluminosilicate material, wherein the alkaline multi-phase aluminosilicate material provides a source of alkaline and soluble silicate to the cement composition.Type: ApplicationFiled: September 26, 2008Publication date: March 19, 2009Applicant: ZEOBOND RESEARCH PTY LTDInventors: Jan Stephanus Jakob Van Deventer, Dingwu Feng, Peter Duxson
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Publication number: 20090044726Abstract: A novel cement slurry composed of cement and water that can be used in cement stabilization applications. The cement slurry compound itself is chemically treated, by means of a cellulosic or other thixotropic thickening agent(s) to create a thixotropic system wherein the wetted cement remains in suspension and does not settle out prior to use even without further mixing. A chemical retarder/stabilizer is also used to prevent the slurry from prematurely setting during shipping. A novel apparatus and method for mixing the novel cement slurry is disclosed to insure the exact proportioning of all ingredients and the proper wetting of the cement.Type: ApplicationFiled: August 13, 2007Publication date: February 19, 2009Inventors: Fred Brouillette, Cliff Ryan
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Patent number: 7485186Abstract: A clay plaster formulation and application. The clay plaster is a mixture of various clays, and aggregate. This plaster is both functional and decorative and is for use on new and existing construction.Type: GrantFiled: June 17, 2003Date of Patent: February 3, 2009Assignee: American Clay Enterprises, LLCInventor: Armin Croft Elsaesser
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Patent number: 7470317Abstract: The invention relates to suspensions, to the production of said suspensions, and to the use thereof for accelerating the setting and hardening of cement and mixtures containing the same. According to the invention, said suspensions consist of aluminium sulphate in a quantity of more than 8 wt. % as Al2O3, preferably between 10 and 12 wt. %, and of suspended bentonite in a quantity of between 1 and 7 wt. %. Said suspensions can especially be used as economical and ecological alternatives in the field of wet spraying. The inventive suspensions are free of COD and alkali.Type: GrantFiled: August 21, 2003Date of Patent: December 30, 2008Assignee: BK Giulini GmbHInventors: Rudolf Lunkenheimer, Hubert Dörrer, Jochen Stein
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Publication number: 20080314295Abstract: A lightweight concrete composition containing from 10 to 90 volume percent of a cement composition, from 10 to 90 volume percent of particles having an average particle diameter of from 0.2 mm to 8 mm, a bulk density of from 0.03 g/cc to 0.64 g/cc, an aspect ratio of from 1 to 3, and from 0 to 50 volume percent of aggregate; where the sum of components used does not exceed 100 volume percent, and where after the lightweight concrete composition is set it has a compressive strength of at least 1700 psi as tested according to ASTM C39 after seven days. The concrete composition can be used to make concrete masonry units, construction panels, road beds and other articles.Type: ApplicationFiled: August 13, 2008Publication date: December 25, 2008Applicant: NOVA CHEMICALS INC.Inventors: Tricia Guevara, Michael T. Williams, David A. Cowan, John K. Madish, Kolapo Adelwale, Roger Moore, Mary Margaret Moore, Tobias Blain Hileman
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Publication number: 20080308012Abstract: A burnt product is produced by burning a raw material containing chromium, in which the fine-grained portion is removed. Even in the burnt product produced from a raw material containing chromium, the chromium (VI) content is reduced.Type: ApplicationFiled: March 8, 2006Publication date: December 18, 2008Applicant: Taiheiyo Cement CorporationInventors: Takayoshi Okamura, Masahiko Moriya, Satoshi Yamazaki, Kota Sasaki, Makoto Kobayakawa, Kenichi Honma
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Patent number: 7419540Abstract: A swellable layer silicate is described based on smectite or sepiolite/palygorskite for use in media containing di- or polyvalent cations that reduce swellability, characterized by a swelling volume of about 5 to 50 mL, measured by addition of 2 g layer silicate (air-dried) to 100 mL water, and by a fineness of maximum 5 wt. % >40 ?m and maximum 20% >20 ?m, as dry sieve residue.Type: GrantFiled: August 29, 2001Date of Patent: September 2, 2008Assignee: Sud-Chemie AGInventors: Markus Möller, Helmut Coutelle, Robert Warth, Wolfgang Heininger
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Patent number: 7387674Abstract: Disclosed herein are a method for solidifying soil and industrial waste and a solidified material prepared thereby. The solidified material of soil and industrial waste is prepared by adding 2-6 parts by weight of a 3-5-fold dilution of a solidifying agent and 3-15 parts by weight of cement to 100 parts by weight of soil, industrial waste or a mixture of two or more thereof. The solidified material prepared according to this method has excellent density, strength, elasticity and durability, and thus can be used as a substitute for stone material. Also, it can be advantageously used in high-temperature and high-humidity areas, because external impact or pressure is relieved because it is absorbed by asphalt.Type: GrantFiled: June 27, 2007Date of Patent: June 17, 2008Inventor: Kap Sok Yi
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Publication number: 20080116131Abstract: Cost-effective tailored earth materials and methods of making and using these tailored earth materials are disclosed. These tailored earth materials can be used to treat (filter) emergent contaminants, such as perchlorate, from water or brine. The sorbed contaminants on the spent tailored earth materials can be degraded after use by bioremediation.Type: ApplicationFiled: November 15, 2005Publication date: May 22, 2008Inventor: Valentine A. Nzengung
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Patent number: 7353870Abstract: The present invention provides settable compositions that comprise water and cement kiln dust. The settable compositions optionally may comprise an additive that comprises at least one of the following group: fly ash; shale; slag cement; zeolite; metakaolin; and combinations thereof. The settable compositions optionally may be foamed with a gas. Methods of cementing also are provided that comprise: providing the settable composition; introducing the settable composition into a location to be cemented; and allowing the settable composition to set therein. The location to be cemented may be above ground or in a subterranean formation.Type: GrantFiled: September 9, 2005Date of Patent: April 8, 2008Assignee: Halliburton Energy Services, Inc.Inventors: Craig W. Roddy, Jiten Chatterji, D. Chad Brenneis, Bobby J. King
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Publication number: 20080028995Abstract: The invention provides geopolymeric compositions intended for use in carbon dioxide injection or production wells or storage reservoirs and preferably in a supercritical carbon dioxide conditions. The geopolymeric composition is formed from a suspension comprising an aluminosilicate source, a metal silicate, an alkali activator, a retarder and/or an accelerator and a carrier fluid wherein the oxide molar ratio M2O/SiO2 is greater than 0.20 with M an alkali metal.Type: ApplicationFiled: August 7, 2006Publication date: February 7, 2008Inventors: Veronique BARLET-GOUEDARD, Benedicte Zusatz-Ayache, Olivier Porcherie
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Publication number: 20080028994Abstract: The invention provides geopolymeric compositions, which have controllable thickening and setting times for a wide range of temperatures and a large range of geopolymer slurry densities. The geopolymer slurry compositions have good mixability and pumpability, whilst the set materials develop good compressive strength and permeability. The invention discloses a method for preparing geopolymer for oilfield cementing applications. The geopolymeric compositions according to the invention comprises a suspension comprising an aluminosilicate source, a metal silicate, an alkali activator, lightweight or heavyweight fillers and a carrier fluid wherein the suspension of said geopolymeric composition is pumped in a well and allowed to set.Type: ApplicationFiled: August 7, 2006Publication date: February 7, 2008Inventors: Veronique Barlet-Gouedard, Benedicte Zusatz-Ayache, Olivier Porcherie
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Patent number: 7316744Abstract: The present invention relates to an additive which is added in order to reinforce cement. The additive comprises chlorides of alkali metals, alkaline earth metals and/or transition metals and oxides selected from the group consisting of alkali metal and alkaline earth metal oxides, aluminum oxide, silica, apatite and/or zeolites and comprises, in particular, a combination of sodium chloride, ammonium chloride, aluminum chloride, potassium chloride, calcium chloride, magnesium chloride, magnesium oxide, magnesium sulfate, sodium carbonate, silica, apatite and/or zeolites. Additives of this type can be used, inter alia, to stabilize/modify cement; consolidate sand and/or soil, such as when building roads, dykes, tunnels, foundations and the like, immobilize pollutants, during the injection of cement compositions, such as grouting, and for the production of concrete.Type: GrantFiled: December 14, 2001Date of Patent: January 8, 2008Assignee: Megatech Holding B.V.Inventor: Robin De La Roij
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Publication number: 20070227404Abstract: Rheological control of liquid phases is provided with a composition comprising a high-alumina cement component a) for controlling the rheology of liquid phases based on a clay component b). Component a) is preferably a calcium aluminate cement and component b) is preferably a clay of the smectite variety. The compositions comprise at least 20% by weight representative of the calcium aluminate cement and is preferably used for rheology control of water- or oil-based systems.Type: ApplicationFiled: October 30, 2006Publication date: October 4, 2007Applicant: BASF Construction Polymers GmbHInventors: Johann Plank, Gregor Keilhofer, Jurgen Heidlas, Peter Lange
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Patent number: 7255739Abstract: This invention provides cement compositions that comprise a high alumina cement, vitrified shale, a soluble phosphate, and water sufficient to form a slurry. This invention also presents methods of enhancing the corrosion resistance of a cement composition that comprise the step of adding vitrified shale to the cement composition.Type: GrantFiled: October 26, 2004Date of Patent: August 14, 2007Assignee: Halliburton Energy Services, Inc.Inventors: Lance E. Brothers, William J. Caveny
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Patent number: 7214264Abstract: The present invention relates to a hydrous kaolin product having improved optical properties, for example, when used in the production of paper products. The present invention comprises an improved barrier coating for paper and a method of making the coated paper. The present invention also comprises an improved method from making filled and coated paper products. The present invention uses a composition comprising kaolin having a shape factor of at least about 70:1, such as at least about 80:1 or at least about 100:1.Type: GrantFiled: April 19, 2005Date of Patent: May 8, 2007Assignee: Imerys Pigments, Inc.Inventors: J. Philip E. Jones, Robert J. Pruett, Jun Yuan, Michael J. Garska, David O. Cummings, Bomi M. Bilimoria, Robin Wesley
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Patent number: 7213646Abstract: Cementing compositions are provided that comprise water, cement kiln dust, vitrified shale, zeolite, and/or amorphous silica, that utilize a packing volume fraction such that the solid particulate materials of the fluid are in a hindered settling state. Methods of cementing are provided that utilize compositions comprising water, cement kiln dust, vitrified shale, zeolite, and/or amorphous silica, that utilize a packing volume fraction such that the solid particulate materials of the fluid are in a hindered settling state.Type: GrantFiled: July 12, 2006Date of Patent: May 8, 2007Inventors: Craig W. Roddy, Ricky L. Covington, Jiten Chatterji