СЫРЬЕВАЯ СМЕСЬ ДЛЯ ПРИГОТОВЛЕНИЯ ХИМИЧЕСКИ СТОЙКОГО КРЕМНЕБЕТОНА И СПОСОБ ИЗГОТОВЛЕНИЯ ИЗДЕЛИЙ ИЗ СЫРЬЕВОЙ СМЕСИ

Изобретения относятся к области строительных материалов, а именно к составам бетонных смесей на основе кремнеземистого вяжущего и способам их приготовления. Технический результат - повышение химической стойкости и снижение энергетических затрат на производство кремнебетона. Сырьевая смесь для изготовления химически стойкого кремнебетона включает, мас.%: вяжущее - кварцевое стекло фракции 0,315-0,63 мм 8-12 и фракции 0,63-1,25 мм 8-12, наполнитель - кварцевый песок 28-32 и природный песчаник 28-32, совместно измельченные до удельной поверхности 300-350 м2/кг, щелочной компонент (в пересчете на R2O) 0,90-1,2, воду остальное. В качестве щелочного компонента используются карбонаты щелочных металлов и едкие щелочи. Способ изготовления изделий из вышеуказанной сырьевой смеси включает активацию минерального наполнителя, подбор гранулометрии, приготовление смеси путем смешивания указанных выше компонентов и формование изделий из полученной смеси с последующей автоклавной обработкой изделий, которую ...

СИЛИКАТНАЯ МАССА

Изобретение касается силикатной массы, которая характеризуется, по меньшей мере, одной аморфной связующей матрицей, содержащей оксид щелочного металла и диоксид кремния, причем оксидом щелочного металла является оксид лития, натрия и/или калия. Техническим результатом является погодоустойчивая, кислотоустойчивая и температуроустойчивая силикатная масса как для формованных изделий, так и для покрытий, устойчивая при хранении в закрытом сосуде, по крайней мере, три месяца без изменения своих свойств. Аморфная связующая матрица содержит на моль оксида щелочного металла более 25 моль диоксида кремния, кроме того, при равномерном распределении на 1000 г диоксида кремния от 10 до 150 г связанного гидроксифункционального алкилполисилоксана и от 400 до 7000 г наполнителя, и ее частицы обладают размером менее 200 мкм. Алкилполисилоксан получают с высокой долей линейных силоксановых цепей и низкой до средней степенью разветвления. 3 с. 11 з.п. ф-лы.

ГЕОПОЛИМЕРНЫЙ КОМПОЗИТ ДЛЯ БЕТОНА УЛЬТРАВЫСОКОГО КАЧЕСТВА

Изобретение относится к геополимерным композитам. Геополимерный композит для бетона ультравысокого качества, содержащий связующее вещество, содержащее, по меньшей мере, один химически активный алюмосиликат и, по меньшей мере, один химически активный щелочноземельный алюмосиликат, щелочную активирующую присадку, содержащую водный раствор, по меньшей мере, одного вещества из гидроокиси натрия и гидроокиси калия и, по меньшей мере, одного вещества из кремнеземного дыма, стекла из силиката натрия, стекла из силиката калия, раствора силиката натрия и раствора силиката калия, и один или более заполнителей. Способ изготовления продукта геополимерного композита для БУВК, включающий смешивание сухого композита с раствором активирующей присадки для образования пасты ГБУВК и схватывание и отверждение пасты ГБУВК для образования продукта; при этом сухой композит содержит связующее вещество приблизительно от 10 до 50 вес.%, связующее вещество содержит, по меньшей мере, один химически активный алюмосиликат ...

СИСТЕМА И СПОСОБ ДЛЯ ИЗГОТОВЛЕНИЯ АЭРОГЕЛЕВОГО КОМПОЗИТНОГО МАТЕРИАЛА И АЭРОГЕЛЕВЫЙ КОМПОЗИТНЫЙ МАТЕРИАЛ

Изобретение относится к области композитных материалов. Система для промышленного изготовления армированной волокном аэрогелевой панели содержит реакционный резервуар с выполненным с возможностью перемещения коробом для приема множества волокнистых матов. Система также предусматривает множество пластин для удержания волокнистых матов на расстоянии друг от друга. Способ изготовления армированной волокном аэрогелевой панели включает получение силикатного золя. Далее попеременно размещают множество волокнистых матов и соответствующее количество промежуточных пластин в реакционном резервуаре. Затем силикатный золь вводят в реакционный резервуар и начинают гелеобразование. После гелеобразования сливают реакционный раствор и удаляют промежуточные пластины. Сформированные армированные волокном аэрогелевые панели высушивают. Изобретение позволяет минимизировать количество утилизируемых растворителей и исключает трудоемкие процессы переработки. 2 н. и 11 з.п. ф-лы, 6 ил.

СЫРЬЕВАЯ СМЕСЬ ДЛЯ ПОЛУЧЕНИЯ ЛЕГКИХ БЕТОНОВ

Изобретение относится к промышленности строительных материалов и касается составов сырьевых смесей для получения легких бетонов. Сырьевая смесь для получения легких бетонов содержит, мас.%: жидкое стекло 0,1-0,3; известняк-ракушечник 25-30; керамзитовый гравий 61-66,5; гранулированный доменный шлак 1,9-3,7; известь 4,5-7. Технический результат - снижение объемной массы бетона. 1 табл.

ГЕОПОЛИМЕРНЫЙ КОМПОЗИТ

Изобретение относится к производству строительных материалов, в частности к производству облицовочного материала в виде строительного кирпича, позволяет эффективно утилизировать большие объемы отходов, как железорудных, так и золошлаковых отходов с последующим использованием для получения полезной продукции. Техническим результатом является создание состава с высокими прочностными свойствами и утилизацией отходов производства. Геополимерный композит включает компоненты при следующем соотношении, мас.%: отходы обогащения железной руды 54,55-54,84, зола сжигания твердого топлива 17,58-18,18, раствор силиката натрия 27,27-27,58. 3 табл.

СЫРЬЕВАЯ СМЕСЬ ДЛЯ ПРИГОТОВЛЕНИЯ ЯЧЕИСТОГО КРЕМНЕБЕТОНА

... 1. Сырьевая смесь для приготовления ячеистого кремнебетона, содержащая вяжущее, кварцевый песок, порообразователь, щелочной компонент и воду, отличающаяся тем, что смесь содержит кварцевый песок, измельченный до удельной поверхности 300-350 м2/кг, в качестве вяжущего используется кварцевое стекло фракций 0,315-0,63 мм, 0,63-1,25 мм, а в качестве порообразователя используется стекло фракции 1,25-2,5 мм, при следующем соотношении указанных компонентов, мас.%: кварцевое стекло фракции 0,315-0,63 мм 2,35-2,45 кварцевое стекло фракции 0,63-1,25 мм 4,70-4,90 кварцевое стекло фракции 1,25-2,5 мм 16,60-17,10 измельченный кварцевый песок 55,30-56,90 щелочной компонент в пересчете на R2О 0,95-1,25 вода остальное 2. Сырьевая смесь по п.1, отличающаяся тем, что в качестве щелочного компонента используются карбонаты щелочных металлов и едкие щелочи.

Архитектурный бетон

Изобретение относится к промышленности строительных материалов, а именно к декоративному бетону, и может быть использовано в изготовлении архитектурных бетонов («арх-бетонов») для производства мелкоштучных изделий любой формы, которые применяют в декоративных целях. Архитектурный бетон получают из смеси, содержащей, мас.%: кварцевый песок 28,96-29,15, черный щебень фракции 2-5 мм или фракции 5-20 мм 36,45-36,67, вяжущее - отходы промышленности 24,3-24,45, щелочной активатор вяжущего 6,08-9,33, железноокислый пигмент черного цвета 0,81, вода - остальное. Технический результат – получение архитектурного бетона черного цвета, обладающего глубиной цвета в 2% отраженного света, с низким расходом пигмента, утилизация отходов промышленности. 6 з.п. ф-лы, 1 ил., 2 табл., 7 пр.

Теплоизоляционная масса

ТЕПЛОИЗОЛЯЦИОННАЯ МАССА, включающая алюмосиликатное огнеупорное волокно и золь кремниевой кислоты , отличающаяся тем, что, с целью повьш1ения прочности при йдновременном снижении объемной массы, она дополнительно содержит эмульсию полиметилсилоксановой жидкости с мол.м. 8000-11000 при следующем соотношении компонентов, мас.%: Алимосиликатное огнеупорное волокно 65-95 Золь кремниевой кислоты (на сухое вещество )4,9-30 Эмульсия полиметилсилоксановой жидкости с мол.м. 8000-11000 (на концентрированное . вещество) 0,1-5 ...

Verfahren zur Herstellung von zementierten und behäuteten nadelförmigen Mulltiwabenstrukturen

Es werden organische Polymerteilchen in einer Zementzusammensetzung bereitgestellt, die zum Aufbringen einer Haut auf eine Keramikwabe oder zum Bondieren der Keramikwabe an eine andere Wabe oder ein anderes Material verwendet wird. Das Vorliegen der organischen Polymerteilchen reduziert das Eindringen der Zementzusammensetzung durch die porösen Wände der Wabe. Auf diese Weise ist ein geringeres Blockieren der Wabenzellen zu sehen und die Reduktion der Wärmeschockleistung, die oft zu sehen ist, wenn Zementzusammensetzungen auf Keramikwaben aufgebracht werden, ist reduziert.

Composite material, components comprising same and method of using same

A composite material comprises 50 to 95 mass % grains of primary material selected from the group consisting of talc, mica, graphite and hexagonal boron nitride, and 0.01 to 40 mass % fibres having a length of 0.05 to 20 mm, and a ratio of length todiameter of at least 5. The grains of the primary material have a mean size of 3 to 150 microns. Preferably the composite comprises 0.01 to 40 mass % grains of secondary material selected from ceramic material, cubic boron nitride (cBN) or diamond. The fibres may comprise carbon, metal or ceramic material, and may be continuous fibres, single fibres, tangled fibres, chopped fibres or multi-fibres. Preferably the composite material comprises an inorganic binder. The composite material may be used as a component for an ultra-high pressure press, such as a gasket 10, containment vessel, electrically conducting heater element, an electrical insulation component or a reaction component.

Investment casting binder comprising colloidal silicas

A binder for making an investment casting mould comprises an aqueous dispersion of a mixture of colloidal silicas having average particle diameters of 4, 8 and 13 nanometers preferably in amounts 20-70 wt%, 10-40 wt% and 10-40 wt% respectively. The binders may also contain latex polymers and/or water soluble polymers in amount 0.25-20 wt%. In another embodiment the binder has a solids content of greater than 15% and comprises silica particles at least 30% of which have an average diameter less than 4nm. The moulds have high green strength and low fired strength.

Improvements in or relating to glazing materials

A cold-glazing coating-composition comprises an aqueous slurry of Portland cement, together with a "lime-binding substance" consisting of ground asbestos, reactive silicic acid, and alumina or talcum.

Colloidal Silica Foams

... 1,175,760. Silica foam. E.I. DU PONT DE NEMOURS & CO. 21 Dec., 1967 [22 Dec., 1966; 17 Oct., 1967], No. 58100/67. Heading C1A. An aqueous foam comprises 60% by weight of colloidal silica based on the weight of water + silica, and a nitrogen-onium compound or amine containing 1 or 2 alkyl chains of at least 8 carbon atoms. A preferred range is 4-50% by weight of colloidal silica and the foam may contain 0À01-5 mol. per cent of the onium compound or amine based on the silica content. Preferably, the onium compound has 10-50 carbon atoms and contains 1 or 2 alkyl chains of 10-20 carbon atoms. The amine used may have 10-40 carbon atoms and contain 1 or 2 alkyl chains of 10-20 carbon atoms. The onium compound or amine may be a substituted amine or an ammonium, imonium, hydroxyl ammonium, diazonium, hydrazonium, or guadonium compound and the compound or the amine used is preferably substituted by a straight or branched chain aliphatic group of 1-24 carbon atoms, or by a cyclo-alkyl, aryl or alkyl ...

A solidified, thermally insulating composition

A thermally insulating composition comprises: (A) an aqueous liquid, wherein the aqueous liquid is the continuous phase of the composition; (B) a particulate, wherein the particulate is silica, and wherein the particulate is a dispersed phase of the composition; and (C) an activator, wherein the activator causes at least some of the particulate to aggregate and form a network of at least the particulate, wherein the formation of the network causes the insulating composition to become a gel, and wherein the gelled insulating composition inhibits or prevents heat loss from two areas having different temperatures. A method of thermally insulating a portion of an annulus comprises: introducing the insulating composition into a portion of an annulus, wherein the gelled insulating composition inhibits or prevents heat loss from the portion of the annulus to an area adjacent to the outside of a second object.

Protective coating and method of making same

A coating composition which sets on application at ambient temperature to a hard, water-insoluble film comprises an aqueous vehicle, alkali-stabilized colloidal silica, finely divided metal protecting pigment including zinc dust in an amount up to 15 parts by weight per part of silica, and a water-miscible amine in an amount between 0.1 and 0.5 parts by weight per part of silica. The compositions may also contain red lead; pigments such as aluminium dust, titanium dioxide, lead chromate, lead monoxide, lead dioxide, zinc oxide, zinc sulphide, lithopone, aluminium oxide, chrome yellow, carbon, black, "Hansa" yellow, asbestine, ultramarine, sienna, blanc fixe, chromium oxide and iron oxide; and extenders such as clay, talc, mica and alkaline earth carbonates.

Improvements in or relating to the production of building tiles

Tiles are made by (1) forming a mix of, in per cent by weight, (a) ground feldspar, 5-50; (b) sodium carbonate or other substance having an analysis of more than 15% alkali metal oxide, 0.5-20; and (c) coarse-grained substance of m.p. not less than that of (a), 45-90; (2) mixing with water and shaping; (3) firing at 950-1200 DEG C.; and (4) cooling stepwise. The firing should proceed until an apparent porosity of not more than 14% results. Feldspar (a) should be an alkali metal oxide containing feldspar of the zeolite or rock glass type or other effusive volcanic glass, and should be ground finer than 100 a ; (b) may comprise, e.g., water-glass or silicofluorides of Na or K. Other permissible additives include alumina, dolomite and materials containing alkali oxide or alkaline earth oxide. (c) may be, e.g., chamotte, porcelain, basalt, granite, quartz sand or a mixture thereof, with particle size higher than 0.5 mm. If silica is used, less than 3% of additives e.g. fluorite, aluminium fluoride ...

Foams of silicates and (meth)acrylic acid polymers

Inorganic-organic foams are obtained by foaming a mixture of (a) a 5 to 60% by weight aqueous alkali metal silicate or ammonium silicate solution, (b) a sufficient amount of a conventional hardener for aqueous silicate solutions, (c) a polymer of (meth)acrylic acid or a copolymer of acrylic acid and methacrylic acid or of (meth)acrylic acid and a copolymerizable monomer containing ethylinic double bonds, the polymer and copolymer being soluble in the aqueous silicate solution, some or all the carboxyl groups of the polymer or copolymer, where relevant, being neutralized by a base and the amount of polymer or copolymer being 0.1 to 30 parts per 100 parts of SiO2 contained in the aqueous silicate solution, (d) a blowing agent, (e) a surfactant having a foaming action and, where relevant, (f) gelling agent for solidifying the foam before hardening and/or conventional fillers, and allowing the foam to harden. The foams can be used as insulating materials in the construction industry.

Improvements in or relating to the manufacture of unsplinterable glass

... 306,351. Robertson, J. H. June 25, 1928. Compound transparent sheets.-To secure firm adhesion between the glass and celluloid sheets forming non-splintering transparencies, the glass is first coated with a cement consisting of a gelatinous silicate in a hot solution of gelatine with or without potassium chrome alum. or of albumen, or of casein. The coated face is dried and a celluloid sheet of about 0.005 inch thickness, softened with an acid such as propionic acid is secured thereto, or alternatively, a solution of 1 gram celluloid, 30 ccs. amylacetate, and 4 cos. propionic acid may be applied thereto. Two sheets formed by this process are then joined to a sheet of celluloid by immersing them in a bath of propyl alcohol and gently pressing them together. If treated with potassium chrome alum, the gelatine solution is prepared by adding gradually 100 parts of a boiling solution of 0.2.5 per cent chrome alum to 100 parts of a boiling solution of 4 per cent agar-agar or gelatine and maintaining ...

MULTI-PHASE PARTICLE, AND MANUFACTURING METHOD THEREOF AND APPLICATION THEREOF

METHOD OF FORMING HYDROLYSATES OF ORTHOSILIC OF FORMING HYDROLYSATES OF ORTHOSILIC ACID TETRA-(ALKOXY ALKYS) ESTERS

TEMPERATURE STABLE FIBROUS INSULATION COMPOSITION AND WET PACKAGE FORMED THEREOF

TREATMENT OF WASTE

... 1518024 Treatment of waste SOC INTERNATIONALE DE PUBLICITE ET D'AGENCES COMMERCIALES 9 July 1976 [16 July 1975] 28571/76 Heading C1K Toxic wastes are treated by a process comprising the steps of treating a silicate e.g. granulated slag in an acid medium in order to obtain silicic acid of low molecular weight (not exceeding 50,000), mixing the silicic acid with the waste to be treated, in the presence of water and in a sufficiently acid medium to ensure that the waste will undergo at least partial solution, precipitation of a gel from the said aqueous mixture and then hardening into a solid aggregate. Optionally a cementation agent may be added to the gel in such a manner as to produce a sludge, the sludge being hardened to a non-toxic solid aggregate.

KILNS PREPARED FOR FIRING OF CERAMIC ARTICLES

SEALING MEANS AND/OR SOLIDIFICATION MEANS FOR GROUNDS AND/OR BUILDING MATERIALS AND PROCEDURES FOR USING THE SAME

PROCEDURE FOR THE PRODUCTION OF A MOLDED ARTICLE USING A METALLOXIDSOLS, MOLDED ARTICLE, ITS USE WITH THE PRODUCTION OF AN ALKENE OXIDE

HONEYCOMB STRUCTURAL BODY

HONEYCOMB STRUCTURAL BODY

WABENFÖRMIGER FILTER

VERFAHREN ZUR BEHANDLUNG VON ABFALL BZW. MUELL, INSBESONDERE GIFTMUELL

HONEYCOMB STRUCTURE AND ASSOCIATED MANUFACTURING PROCESS

BONDING AGENT FOR THE CONNECTION OF POURING AND LOTS FORMATIONS AND PROCEDURES FOR THEIR PRODUCTION

BONDING AGENT AND/OR IMPRAGNIERMITTEL

MINERAL WOOL PRODUCT AS WELL AS PROCEDURE FOR ITS PRODUCTION, COATING MASS FOR THIS AND THEIR USE

HONEYCOMB STRUCTURE

COATED FRONT OR DACHDAEMMPLATTE FROM MINERAL FIBRES, AS WELL AS PROCEDURES FOR YOUR PRODUCTION.

STRENGTHENING MATERIAL AND A SILIKATI MATRIX CONTAINING BONDING MATERIALS.

LIGHTWEIGHT MATERIAL AS WELL AS PROCEDURE FOR ITS PRODUCTION.

Verkieselung of porous bodies averages organic silicon connections.

NON-COMBUSTIBLE WÄRMEDÄMMPLATTEN ON THE BASIS OF EXPANDED PEARLITE GRANULATION

PROCEDURE FOR THE PRODUCTION OF AN INORGANIC COATING MASS

Silicic acid containing mass, in particular for the production of silicic acid gel and formed products

Castingable Schlicker

NO PROCEDURES FOR THE PRODUCTION OF A MACHINABLE MOLD

Cured molded article

A molded article formed from 20 to 99 wt% of biodegradable inorganic fibers comprising SiO ...

Use of compounds containing aluminium oxide and silicon oxide for producing a hydrophilic building product

The use of a binder system comprising compounds containing aluminium oxide and silicon oxide for producing a hydrophilic building product, characterized in that the sum of the oxides calculated as AI ...

Inorganic fibrous molded refractory article, method for producing inorganic fibrous molded refractory article, and inorganic fibrous unshaped refractory composition

Disclosed is an inorganic fibrous molded refractory article having high biosolubility, which is capable of achieving desired heat resistance without containing ceramic fibers such as alumina silicate fibers, alumina powder and silica powder and is reduced in the production cost and the production price. Specifically disclosed is an inorganic fibrous molded refractory article which is characterized by being formed from a material that contains 2-95% by mass of biosoluble inorganic fibers having a solubility in physiological saline at 40C of not less than 1% by mass, 2-95% by mass of an inorganic powder having a needle-like crystal structure and 3-32% by mass of a binder. More specifically, the inorganic powder having a needle-like crystal structure has an average length of 1-3,000 m and an aspect ratio of 1-1,000.

SILICATE BINDERS

COMPRESSION MOLDED INORGANIC FIBER ARTICLES, AND METHODS AND COMPOSITIONS USED IN MOLDING SAME

A method of forming articles made of an inorganic fiber material using compression molding. In one respect, a method of forming an article, wherein the method includes providing a molding composition comprising inorganic fiber and an inorganic binder, and compression molding the molding composition into the article. In another respect, the method including providing a molding composition comprising inorganic fibers and binder, and compression molding the molding composition into the article, wherein at least 75% by weight of the molded article is inorganic material. In some embodiments the cured binder is capable of withstanding temperatures of at least (315 ~C) without significant degradation or deterioration due to heat. Articles made by the use of such methods and a molding composition for use in compression molding an article are also included.

FIBROUS INSULATING MATERIALS

COMPOSITION FOR PREPARING INORGANIC FOAMED BODIES

COMPOSITION FOR PREPARING INORGANIC FOAMED BODIES A composition for preparing inorganic foamed bodies which comprises a water-soluble silicate of alkali metal and/or ammonium, a metallic blowing agent, a hardening agent for the silicate, and a foaming stabilizer as active components. Foamed bodies having outstanding properties can be prepared from the composition without application of heat or pressure.

SILICA-CONTAINING POROUS BODIES OF CONTROLLED PORE SIZE

SILICA-CONTAINING POROUS BODIES OF CONTROLLED PORE SIZE This invention relates to the preparation of silicacontaining particulate materials and monolithic structures exhibiting high porosity with exceptionally uniform pore size. The bodies are produced through gelation of aqueous alkali metal silicate and/or colloidal silica solutions, optionally containing dispersed particulate phases, with organic reagents followed by a leaching step. Uniformity of pore size is achieved through careful control of such variables as the ratio of alkali metal silicate to colloidal silica solutions, the concentration of silica, the amount of dispersed phase employed, and the like. Hence, for example, a porous silicate body having very closelycontrolled, small-sized pores would be eminently suitable for such applications as catalyst supports for air pollution control, filtration devices for gases and/or liquids, acoustical materials, and chromatographic supports.

SOLUBLE AND COLLOIDAL SILICATES

FOUNDRY MOLD TREATING COMPOSITIONS AND METHODS OF MAKING SAME

BONDED FIBROUS MATERIALS

A composite material comprises inorganic-bonded alkaline earth silicate fibres in which any bonding agents or fillers comprise low amounts of aluminium so that the composite material comprises less than 1 % by weight aluminium expressed as Al2-O3.

MONOLITHIC INORGANIC STRUCTURES

COLLOIDAL SILICATE DISPERSION, METHOD FOR ITS PREPARATION AND ITS USE

The present invention is directed to a colloidal aqueous silicate dispersion containing silica and alumina, the molar ratio between silica and alumina being 2 - 12, as well as to a method for its preparation. Said method is characterized by dissolving a particulate mineral material, such as a mineral wool or fibre product containing silica and alumina in a molar ratio of 2 - 12 in an aqueous solution, nucleating and stabilizing the so obtained solution, and optionally adjusting the dry matter content of the dispersion so obtained. The said dispersion can also be made to gel. The invention is also directed to the use of the dispersion as a binder.

CHEMICAL-RESISTANT QUARTZ-BASED CASTING COMPOSITION AND METHOD OF MAKING A CHEMICAL-RESISTANT CONCRETE

A quartz-based casting composition provides excellent resistance to attack by chemicals, including weak and strong acids. The quartz-based casting composition is useful as concrete in various construction applications where corrosion resistance is needed. The casting composition includes a dry component and a wet component. The dry component includes about 25% to about 100% by weight quartz and the corrosion resistance increases with increasing quartz content. A method of making a chemical-resistant concrete is also provided.

COMPOSITION OF A CEMENT ADDITIVE MATERIAL AS AN ADDITIVE TO CEMENTITIOUS MINERAL ADMIXTURES, AND UTILISED AS LATENT HYDRAULIC BINDERS TO IMPROVE THE OUTCOME OF CEMENTITIOUS PRODUCTS

... 18 ABSTRACT A composition of a cement additive material to improve durability of cementitious structures is disclosed. The cement additive composition comprises an admixture of one or more of divalent magnesium metal silicates with capacity to act as a latent hydraulic binder in said composition activated by a hydration process under aqueous conditions, and in particular the divalent metal silicate is magnesium-dominated silicate, preferably comprising mineral groups of olivines, orthopyroxenes, amphiboles, talc and serpentines or mixtures thereof. The composition also comprises chloride ions or brine. Applications of the compositions are also disclosed, in particular to utilize a property of hydration as a major trigger for the latent hydraulic reaction of magnesium silicates, particularly for said olivines, when exposed to water and brines, in order to obtain a cementitious material becoming self healing. Date Recue/Date Received 2021-01-18 ...

STABILIZED REFRACTORY COMPOSITIONS

A refractory composition including refractory aggregate, one or more matrix components, and silicate-coated set accelerator particles. The silicate-coated set accelerator particles can include one more of silicate-coated calcium hydroxide, magnesium hydroxide, calcium chloride, calcium carbonate, magnesium carbonate and calcium sulfate. Suitable silicate coatings include sodium silicate, potassium silicate, lithium silicate and mixtures thereof. A method of recovering an aged refractory composition, a settable composition and a method of manufacturing silicate-coated calcium hydroxide particles are also provided.

HARDENED INORGANIC REFRACTORY FIBROUS COMPOSITIONS

ARTICLE OF LIGHTWEIGHT INORGANIC AGGLOMERATE IN FORM OF SLAB, PROCESS OF MANUFACTURING THE SAME AND RESULTING PANEL

... ²In a method for manufacturing conglomerate articles in sheet form, a mix ²comprising ²the following is prepared: an expanded inert granular material; a filler ²consisting of hollow ²inorganic microspheres and a plasticizer (clay, quartz or other powder ²mineral, cellulose); an ²aqueous silicon-containing binder. A layer of mix, where necessary coated with ²a fibreglass ²meshwork in order to increase the mechanical strength thereof, is deposited on ²a temporary ²support and subjected to vacuum vibrocompression. The resultant rough-formed ²sheet is ²heated at a controlled temperature so as to cause evaporation of the water ²present in the mix.²A light, sound-absorbing, heat-insulating sheet, rated in Class 0 in terms of ²fire ²reaction, suitable to be plastered or painted superficially and used for ²forming panels and ²partitions for internal and external use, is obtained.² ...

HIGH CAPACITY STRUCTURES AND MONOLITHS VIA PASTE IMPRINTING

The disclosure relate generally to structures, forms, and monoliths, and methods of preparing the same. This disclosure can produce uniform structured passageways or channels of active material, including adsorbent or catalyst, by imprinting or molding features into a paste on a support that can be subsequently assembled into a gas or liquid treating structure, i.e. a monolith. The paste, which can include an active material, binder, and other potential additives, can be applied to the support or pushed through a support (as in a mesh) as a thin film. The paste can be imprinted, stamped, shaped or otherwise handled to give features of desired height, shape, width, and positioning. When stacked or rolled, the features of one layer contact a subsequent layer, which seal to form passageways. The resulting structure can have high cell-density (>1000 cells per square inch) and a large volume fraction of active material.

HIGH CAPACITY STRUCTURES AND MONOLITHS VIA PASTE IMPRINTING

The disclosure relate generally to structures, forms, and monoliths, and methods of preparing the same. This disclosure can produce uniform structured passageways or channels of active material, including adsorbent or catalyst, by imprinting or molding features into a paste on a support that can be subsequently assembled into a gas or liquid treating structure, i.e. a monolith. The paste, which can include an active material, binder, and other potential additives, can be applied to the support or pushed through a support (as in a mesh) as a thin film. The paste can be imprinted, stamped, shaped or otherwise handled to give features of desired height, shape, width, and positioning. When stacked or rolled, the features of one layer contact a subsequent layer, which seal to form passageways. The resulting structure can have high cell-density (>1000 cells per square inch) and a large volume fraction of active material.

IMPROVED BITUMEN EXTRACTION PROCESS

A process for the extraction and recovery of bitumen from oil sands and a process for the treatment of tailings are disclosed. Bitumen is recovered in a process comprising contacting a polysilicate microgel with an ore sand oil to produce a froth comprising bitumen and a tailings stream comprising water, sand and clay fines. Preferably the tailings stream is dewatered and recovered water may be recycled to the extraction process. Polysilicate microgel may be carried through to a dewatering step and enhances flocculation in dewatering said tailings.

IMPROVED CEMENT TO MAKE THERMAL SHOCK RESISTANT CERAMIC HONEYCOMB STRUCTURES AND METHOD TO MAKE THEM

A ceramic honeycomb structure comprised of at least two separate smaller ceramic honeycombs that have been adhered together by a cement comprised of inorganic fibers and a binding phase wherein the smaller honeycombs and fibers are bonded together by the binding phase which is comprised of an amorphous silicate, aluminate or alumino-silicate glass and the cement has at most about 5% by volume of other inorganic particles. The cement may be made in the absence of other inorganic and organic additives while achieving a shear thinning cement, for example, by mixing oppositely charged inorganic binders in water together so as to make a useful cement for applying to the smaller honeycombs to be cemented.

TREATMENT OF TAILINGS STREAMS

A process for the treatment of a tailings stream is provided. Treatment comprises contacting polysilicate microgel, an anionic polyacrylamide and one or both of (i) a multivalent metal compound and (ii) a low molecular weight cationic organic polymer with the tailings stream to flocculate sand and clay fines, producing flocculated solids. The flocculated solids can be separated from the stream.

INSULATING LIGHTWEIGHT REFRACTORY MATERIALS

MINERAL WOOL PRODUCT, METHOD FOR ITS PRODUCTION, IMPREGNATING MASS THEREFOR, AND USE THEREOF

The surfaces of coated mineral fiber products, as a rule, also form a barrier against dust and trickling particles, are however not accepted for technological reasons and reasons of cost unless their intended use requires coating or impregnating for different reasons. In order to provide such mineral wool products, which - in view of their use usually are not coated, with a barrier against dust or trickling particles, it is proposed to provide their surfaces with an impregnating mass applied in a foamed form. The froth is destroyed during drying or curing to open macroscopic pores between the fibers, whereby an open surface structure of the product is preserved. Nevertheless the impregnated layer offers effective protection against solid matter passing through it. Impregnation by means of a foam incurs surprisingly low additional costs, even in large series production. It is of particular importance that by selecting a suitable impregnating mass, the tactile sensation of the product may ...

CERAMIC PRODUCTS

... 2135292 9323345 PCTABS00028 A method of producing a ceramic product comprising the steps of preparing an aqueous slurry of a silica sol with a refractile material comprising a calcium or zirconium silicate, causing the slurry to gel by physical or chemical means to form a solid structure, and drying said structure to form a porous ceramic product. The product has a high green strength which nevertheless increases on heating, and may be used in building applications.

Verfahren zur Herstellung von geformten Gebilden.

Procédé pour la fabrication d'articles, à partir de mica.

Verfahren zur Herstellung verfestigter, silikatgebundener Glimmerplatten oder -folien

Körper aus oxydhaltigen anorganischen Blähmaterialien und Kunstharzbindemitteln mit verbesserter Formbeständigkeit bei Einwirkung von Feuer und/oder hohen Temperaturen sowie Verfahren zu dessen Herstellung

Elektronenröhre

Verfahren zur Herstellung einer Mörtelmasse

Use of a refractory material, especially for the preparation and conveying of aluminium

Use of a solid material which has a temperature of sagging under load which is higher than 1000 DEG C, a weight content of aluminium, expressed as Al2O3, of between 10 and 60 %, a weight content of silicon, expressed as SiO2, of between 5 and 85 %, a weight content of calcium expressed as CaO, of between 4 and 14 % and a weight content of fluorine forming part of the structure of the material of between 0.1 and 10 %, the fluorine being in the form of alkali metal fluoride or alkaline earth-metal fluoride, to form an object intended to be in contact with molten aluminium.

INORGANIC BONDING AGENT AND PROCEDURE FOR ITS PRODUCTION.

Preparations for the manufacture or treatment of foundry articles

Silicyl metaphosphate and use thereof in foundry articles

Silicyl metaphosphate of the formula (I) specified in Claim 1 is suitable as a binding silicate component for the manufacture or treatment of foundry articles, optionally either in a mixture with aggregate or as an impregnant. ...

PROCEDURE FOR THE PRODUCTION OF AN INORGANIC-ORGANIC FOAM MATERIAL FROM SILICATES AND POLY (METH) ACRYLSAEUREN.

Process for the preparation of an aerogel aerogel composite of respectively, and an aerogel aerogel composite respectively obtainable by the process.

Die vorliegende Erfindung betrifft ein Verfahren zur Aerogelherstellung und ein mittels dieses Verfahrens hergestellten Verbundwerkstoffs aus einem Aerogel und Mineralfasern. Ein auf Silikat-Basis hergestelltes Aerogelmaterial mit einem Wärmeleitfähigkeitskoeffizient von < 18 mW/mK ist erhältlich, indem dieses mit HMDSO in Gegenwart von Salpetersäure hydrophobiert wird.

Process for aero gel production and aerogel composite material.

Die vorliegende Erfindung betrifft ein Verfahren zur Aerogelherstellung und einen mittels dieses Verfahrens hergestellten Verbundwerkstoff aus einem Aerogel und Mineralfasern. Ein auf Silikat-Basis hergestelltes Aerogelmaterial mit einem Wärmeleitfähigkeitskoeffizient von <18 mW/mK ist erhältlich, indem dieses mit HMDSO in Gegenwart von Salpetersäure hydrophobiert wird.

System and method for the preparation of an aerogel composite and aerogel composite.

Die vorliegende Erfindung betrifft eine Anlage und ein Verfahren zur Herstellung eines Aerogel-Verbundwerkstoffs. Die Anlage ist dadurch charakterisiert, dass diese einen Reaktionsbehälter mit einem herausnehmbaren Tragkorb für die Aufnahme einer Mehrzahl von Fasermatten aufweist und eine Mehrzahl von Platten vorgesehen ist, um die Fasermatten voneinander zu beabstanden. Nach der Entfernung der Platten sind zwischen den Aerogel-Dämmplatten Zwischenräume vorhanden, durch die bei der Trocknung heisse Trocknungsluft durchgeblasen werden kann. Das Verfahren hat den Vorteil, dass die zu entsorgenden Mengen an Lösungsmittel und Reagenzien minimal sind und auch keine aufwändigen Aufarbeitungsprozesse nötig sind.

Not calcined cementitious compositions, not calcined concrete compositions, not calcined concrete and method of making same.

Die Erfindung stellt nichtcalcinierte zementöse Zusammensetzungen bereit, die mikrometerskalige anorganische Teilchen umfassen und als Bindemittelmaterial verwendet werden können; und stellt nichtcalcinierte Betonzusammensetzungen bereit; ebenso sind nichtcalcinierte Betone bereitgestellt, die ähnliche oder bessere physikalische und mechanische Eigenschaften aufweisen als Betone, die mit herkömmlichen Zementen hergestellt werden. Die vorliegende Erfindung stellt auch Verfahren zur Herstellung der nichtcalcinierten zementösen Zusammensetzungen, der nichtcalcinierten Betonzusammensetzungen und der nichtcalcinierten Betone bereit.

Nichtcalcinierte zementöse Zusammensetzungen, nichtcalcinierte Betonzusammensetzungen, nichtcalcinierter Beton und Verfahren zu deren Herstellung.

Die Erfindung stellt nichtcalcinierte zementöse Zusammensetzungen bereit, die mikrometerskalige anorganische Teilchen umfassen und als Bindemittelmaterial verwendet werden können; und stellt nichtcalcinierte Betonzusammensetzungen bereit; ebenso sind nichtcalcinierte Betone bereitgestellt, die ähnliche oder bessere physikalische und mechanische Eigenschaften aufweisen als Betone, die mit herkömmlichen Zementen hergestellt werden. Die vorliegende Erfindung stellt auch Verfahren zur Herstellung der nichtcalcinierten zementösen Zusammensetzungen, der nichtcalcinierten Betonzusammensetzungen und der nichtcalcinierten Betone bereit.

MIKROSTRUKTURIROVANNYEKARBONIZIRUEMYEKLINKERY CALCIUM SILICATE AND METHODS OF THEIR SYNTHESIS

СИЛІКАТНА МАСА, СПОСІБ ЇЇ ВИГОТОВЛЕННЯ ТА СПОСІБ ВИГОТОВЛЕННЯ ПОКРИТТЯ З СИЛІКАТНОЇ МАСИ

Винахід стосується силікатної маси, що має аморфну зв'язувальну матрицю, яка містить діоксид кремнію і принаймні один оксид лужного металу, вибраного з групи оксидів літію, натрію і/або калію, яка характеризується тим, що аморфна зв'язувальна матриця на кожен моль оксиду лужного металу містить більше ніж 25 молів діоксиду кремнію, а на кожні 1000 г діоксиду кремнію містить від 10 до 150 г рівномірно розподілених зв'язуючих кремнієвмісних гідрофобних добавок, при цьому силікатна маса на 1000 г діоксиду кремнію містить від 400 до 7000 г заповнювача з розміром часток менше 200 мкм. Винахід забезпечує отримання погодо-, кислото- і температуростійкої силікатної маси для формованих тіл і покриттів. Заявлено також спосіб отримання силікатної маси та спосіб виготовлення покриття з силікатної маси.

СПОСОБ ПОЛУЧЕНИЯ КОЛЛОИДНОЙ СИЛИКАТНОЙ ДИСПЕРСИИ

Настоящее изобретение относится к способу получения коллоидной силикатной дисперсии, который характеризуется растворением гранулированного минерального материала, такого как минеральная вата или волокнистое изделие, содержащего диоксид кремния и оксид алюминия в молярном соотношении от 2 до 12 в водном растворе, образованием центров кристаллизации и стабилизацией таким образом полученного раствора и, необязательно, доведением содержания сухого остатка таким образом полученной дисперсии. Указанная дисперсия также может быть превращена в гель.

METHOD FOR PRODUCTION OF COLLOIDAL AQUEOUS SILICATE DISPERSION AND ITS USE

Sealing composition and its use

A MOULD FOR BENDING SHEET GLASS

COMPOSITION DE LIANT REFRACTAIRE ET SON PROCEDE D'OBTENTION

L'INVENTION CONCERNE UNE COMPOSITION DE LIANT REFRACTAIRE DESTINEE A LA CONFECTION DE MOULES OU AUTRES DISPOSITIFS REFRACTAIRES. LADITE COMPOSITION COMPREND DE LA SILICE COLLOIDALE, UNE MATIERE LIQUIDE CONTENANT DES GROUPES SI-OH, UN SOLVANT APTE A SOLUBILISER LA MATIERE LIQUIDE ET LA SILICE COLLOIDALE, ET AU MOINS UN COMPOSE ORGANIQUE NON METALLIQUE, NON IONIQUE, APROTIQUE QUI CONTIENT AU MOINS UN ELEMENT CHOISI PARMI A, S, B ET N ET QUI STABILISE LA COMPOSITION A L'ENCONTRE D'UNE AUTO-GELIFICATION, LA COMPOSITION POUVANT ETRE GELIFIEE A LA DEMANDE EN UNE SEULE PHASE. APPLICATION EN PARTICULIER A L'OBTENTION DE PIECES METALLIQUES COULEES.

COMPOSITION Of THERMO ISOLATION OUT OF REFRACTORY FIBRE

SILICA-CONTAINING POROUS BODIES OF CONTROLLED PORE SIZE

Intumescent mouldable compsn. for fire retardant devices - comprising powdered sodium silicate, silica gel, an oxide or hydroxide and water

Bitumen extraction process

A process for the extraction and recovery of bitumen from oil sands and a process for the treatment of tailings are disclosed. Bitumen is recovered in a process comprising contacting a polysilicate microgel with an ore sand oil to produce a froth comprising bitumen and a tailings stream comprising water, sand and clay fines. Preferably the tailings stream is dewatered and recovered water may be recycled to the extraction process. Polysilicate microgel may be carried through to a dewatering step and enhances flocculation in dewatering said tailings.

Cold set composition for ceramic bodies

Disclosed are ceramic articles comprising ceramic honeycomb bodies and an aqueous composition, for example in the form of a cold-set plug, as well as processes for preparing ceramic articles and processes for making an aqueous composition for use with ceramic articles, for example as a cold-set plug composition.

Non-calcined cementitious compositions, non-calcined concrete compositions, non-calcined concrete and preparation methods thereof

The present invention provides non-calcined cementitious compositions comprising micron inorganic particles, which can be used as a binder material; and provides non-calcined concrete compositions; non-calcined concretes are also provided, which exhibit similar or better physical and mechanical properties than those prepared with traditional cements do. The present invention also provides the preparation methods of the non-calcined cementitious compositions, the non-calcined concrete compositions and the non-calcined concretes.

Clay plaster and a method of its realization

The object of the invention is a clay plaster and a method of performing the clay plaster, wherein the clay plaster comprising clay and optionally aggregates in the form of sand, organic and/or mineral fillers, characterizes in that it comprises clay in an amount of more than 40% by weight, preferably more than 60% by weight, and more preferably more than 80% by weight, and most preferably 100% by weight of content based on the clay plaster dry matter, wherein the clay is in a powder form and granular form, whereby the amount of clay powder does not exceed 80% by weight of the granular clay and optionally comprises a mineral and/or organic filler in an amount of not more than 60% by weight, as well as possible modifying additives, additives increasing the adhesion to the substrate, additives delaying the time of granular clay soaking, retention additives and/or pigments, wherein the amount of additives is not more than 10% by weight based on the clay plaster dry matter and the method of performing the clay plaster according to the invention consists in rapid mixing of the dry ingredients of the clay plaster with an aqueous solvent immediately prior to its application to or during application onto the substrate. Thus mixed clay plaster, before the clay grains soaking in and humidity homogenisation, is immediately applied onto the substrate prepared as for other mineral plasters, resulting in a good adhesion to the substrate after drying. Preferably, the clay plaster is applied onto the substrate after having applied a bonding layer in the form of clay slurry onto a dry substrate first. 1. A clay plaster comprising: clay in an amount of more than 40% by weight of content based on clay plaster dry matter , wherein the clay is in a powder form having grain size of up to 1.5 mm and granular form having grain size larger than 1.5 mm up to grain size not exceeding the thickness of layer of clay plaster which is to be applied to a substrate , whereby the amount of clay in ...

EARLY STRENGTH ENHANCING CONCRETE ADMIXTURE

The present invention provides an admixture composition comprising a liquid suspension of colloidal silica, siloxane, and polycarboxylate polymer cement dispersant for enhancing early age strength, finishability, and other properties in hydratable cementitious compositions such as concrete (e.g., shotcrete). An inventive method involves mixing the components together in a specific sequence, thereby to obtain a stable liquid suspension. This attainment of a stable liquid suspension is surprising and unexpected because (i) the polycarboxylate polymer cement dispersant and siloxane components are incompatible and immiscible with one another; and (ii) that colloidal silica and siloxane compound are incompatible and immiscible with one another. Yet, the present inventors achieved an additive in the form of a stable liquid suspension which can be conveniently dosed into concretes and shotcrete mixtures, to enhance early age strength, and to improve workability and rheology in terms of finishability of concrete surfaces and improved rebound performance in shotcrete applications. 1. An additive composition for hydratable cementitious mixtures , comprising:a liquid suspension comprising (A) a polycarboxylate polymer cement dispersant, (B) at least one colloidal silica solution having an average silica particle size of 5 to 150 nanometers and being dispersed within an aqueous or non-aqueous solution, wherein the dry-weight of the colloidal silica solution is present in the amount of 1% to 54% by weight (dry) based on the total weight of the liquid suspension, and (C) at least one siloxane compound;the dry-weight of polycarboxylate polymer cement dispersant of component (A) being present in an amount no less than 1.5% and no greater than 50% by weight (dry) based on total weight of the liquid suspension;the wet-weight of siloxane compound of component (C) being present in an amount no less than 5% and no greater than 50% by weight (wet) based on total weight of the liquid ...

Method To Design For Thickening Time Using Cementitious Blend Composition

A method of designing a cement slurry may include: (a) selecting at least a cement and concentration thereof, water and concentration thereof, and, optionally, at least one supplementary cementitious material and a concentration thereof, such that a cement slurry comprising the cement, the water, and, if present, the at least one supplementary cementitious material, meet a density requirement; (b) calculating a thickening time of the cement slurry using a thickening time model; (c) comparing the thickening time of the cement slurry to a thickening time requirement, wherein steps (a)-(c) are repeated if the thickening time of the cement slurry does not meet or exceed the thickening time requirement, wherein the selecting comprises selecting different concentrations and/or different chemical identities for the cement and/or the supplementary cementitious material than previously selected, or step (d) is performed if the thickening time of the cement slurry meets or exceeds the thickening time requirement; and preparing the cement slurry.

Accelerating Agents For Resin Cement Composite Systems For Oil Well Cementing

A bulk dry cement may comprise a cement; a solid particle; and a liquid resin accelerator, wherein the liquid resin accelerator is disposed on a surface of the solid particle. 1. A bulk dry cement comprising:a cement;a solid particle; anda liquid resin accelerator, wherein the liquid resin accelerator is disposed on a surface of the solid particle.2. The bulk dry cement of wherein the liquid resin accelerator comprises at least one liquid resin accelerator selected form the group consisting of aliphatic amines claim 1 , aliphatic tertiary amines claim 1 , aromatic amines claim 1 , cycloaliphatic amines claim 1 , heterocyclic amines claim 1 , amido amines claim 1 , polyamides claim 1 , polyethyl amines claim 1 , polyether amines claim 1 , polyoxyalkylene amines claim 1 , carboxylic anhydrides claim 1 , triethylenetetraamine claim 1 , ethylene diamine claim 1 , N-cocoalkyltrimethylene claim 1 , isophorone diamine claim 1 , N-aminophenyl piperazine claim 1 , imidazoline claim 1 , 1 claim 1 ,2-diaminocyclohexane claim 1 , polyetheramine claim 1 , diethyltoluenediamine claim 1 , 4 claim 1 ,4′-diaminodiphenyl methane claim 1 , methyltetrahydrophthalic anhydride claim 1 , hexahydrophthalic anhydride claim 1 , maleic anhydride claim 1 , polyazelaic polyanhydride claim 1 , phthalic anhydride claim 1 , 6-Methyl-2 claim 1 ,4-bis(methylthio)phenylene-1 claim 1 ,3-diamine; 2-methyl-4 claim 1 ,6-bis(methylthio) phenylene-1 claim 1 ,3-diamine claim 1 , 2 claim 1 ,4 claim 1 ,6-tris(dimethylaminomethyl)phenol claim 1 , and combinations thereof.3. The bulk dry cement of wherein the solid particle comprises at least one solid selected from the group consisting of halloysite claim 1 , halloysite nanotubes claim 1 , silica dust claim 1 , silica flour claim 1 , fumed silica claim 1 , silica fume claim 1 , porous silica claim 1 , cement kiln dust (CKD) claim 1 , Portland cement claim 1 , calcium silicate claim 1 , pumice claim 1 , perlite claim 1 , metakaolin claim 1 , kaolinite claim 1 , ...

TREATMENT FLUIDS COMPRISING SYNTHETIC SILICATES AND METHODS FOR USE

Methods for using treatment fluids comprising synthetic silicates in subterranean formations are provided. In some embodiments, the methods may comprise introducing a treatment fluid comprising an aqueous base fluid and a synthetic silicate into a wellbore penetrating at least a portion of a subterranean formation comprising a loss zone; allowing the treatment fluid to displace at least a portion of a first fluid present in the wellbore; and allowing the treatment fluid to at least partially plug the loss zone. 1. A method comprising:introducing a treatment fluid comprising an aqueous base fluid and a synthetic silicate into a wellbore penetrating at least a portion of a subterranean formation comprising a loss zone;allowing the treatment fluid to displace at least a portion of a first fluid present in the wellbore; andallowing the treatment fluid to at least partially plug the loss zone.2. The method of claim 1 , further comprising allowing the treatment fluid to displace substantially all of the first fluid.3. The method of claim 1 , wherein the synthetic silicate is a synthetic magnesium silicate.4. The method of claim 1 , wherein the synthetic silicate is selected from the group consisting of: sodium magnesium silicate claim 1 , sodium magnesium silicate tetrasodium pyrophosphate claim 1 , sodium magnesium fluorosilicate claim 1 , sodium magnesium fluorosilicate tetrasodium pyrophosphate claim 1 , and any combination thereof.5. The method of claim 1 , wherein the treatment fluid further comprises a weighting agent.6. The method of claim 1 , wherein the synthetic silicate is present in an amount from about 0.1 to about 5.0% by weight of water in the treatment fluid.7. The method of claim 1 , wherein the treatment fluid is not settable.8. The method of claim 1 , wherein the treatment fluid does not comprise a lost circulation material.9. The method of claim 1 , wherein the treatment fluid is thixotropic.10. The method of claim 1 , wherein the treatment fluid at ...

METHODS OF MAKING PLUGGED HONEYCOMB BODIES WITH CEMENT PATTIES

A method of plugging a honeycomb body includes mixing a plugging mixture at a mixing temperature, wherein the plugging mixture comprises a plurality of inorganic particles, inorganic binder, organic binder, and water; dispensing the plugging mixture into a patty mold at a dispensing temperature; cooling the plugging mixture within the patty mold to a cooled temperature, such that a cement patty is formed; and pressing the cement patty into a plurality of channels in a honeycomb body, wherein the mixing temperature and the dispensing temperature are above a hydration point temperature of the organic binder in the plugging mixture, and the cooled temperature is below the hydration point temperature of the organic binder in the plugging mixture. 1. A method of forming a plugging cement patty , comprising:mixing a plugging mixture at a mixing temperature, the plugging mixture comprising a plurality of inorganic particles, an inorganic binder, an organic binder, and a liquid;dispensing the plugging mixture at a dispensing temperature; andcooling the plugging mixture to a cooled temperature to form the plugging cement patty, wherein the dispensing temperature is above a hydration point temperature of the organic binder in the plugging mixture and the cooled temperature is below the hydration point temperature of the organic binder in the plugging mixture.2. The method of claim 1 , wherein a viscosity of the plugging mixture at the mixing temperature is from about 1 cP to about 100 cP.3. (canceled)4. The method of claim 1 , wherein a viscosity of the plugging mixture at the dispensing temperature is from about 1 cP to about 100 cP.5. (canceled)6. The method of claim 1 , wherein a viscosity of the plugging mixture at the cooled temperature is from about 1 claim 1 ,500 claim 1 ,000 cP to about 10 claim 1 ,000 claim 1 ,000 cP.7. The method of claim 1 , wherein a viscosity of the plugging mixture at the cooled temperature is from about 3 claim 1 ,000 claim 1 ,000 cP to about 5 ...

Method for aerogel production and aerogel composite material

The present invention relates to a method for aerogel production and to a composite material produced by said method and comprising an aerogel and mineral fibers. An aerogel material produced on the basis of silicate with a coefficient of thermal conductivity of <18 mW/mK is obtainable by rendering it hydrophobic with HMDSO in the presence of nitric acid.

THERMOSET CERAMIC COMPOSITIONS, INORGANIC POLYMER COATINGS, INORGANIC POLYMER MOLD TOOLING, INORGANIC POLYMER HYDRAULIC FRACKING PROPPANTS, METHODS OF PREPARATION AND APPLICATIONS THEREFORE

Thermoset ceramic compositions and a method of preparation of such compositions. The compositions are advanced organic/inorganic hybrid composite polymer ceramic alloys. The material combine strength, hardness and high temperature performance of technical ceramics with the strength, ductility, thermal shock resistance, density, and easy processing of the polymer. Consisting of a branched backbone of silicon, alumina, and carbon, the material undergoes sintering at 7 to 300 centigrade for 2 to 94 hours from water at a pH between 0 to 14, humidity of 0 to 100%, with or without vaporous solvents. 1. A composition of matter comprising:a polymer of aluminum, silicon, carbon, and oxygen.2. A composition of matter provided by the incipient materials:a. aluminum oxide,b. silicon oxide,c. carbon, and, a source ofd. divalent cations.3. A composition of matter as claimed in wherein the composition of matter is a gel.4. The composition as claimed in wherein the divalent cations are selected from the group consisting of calcium claim 2 , and magnesium.5. A composition of matter as claimed in wherein claim 2 , in addition claim 2 , metal is added.6. A composition of matter as claimed in wherein claim 2 , in addition claim 2 , fibers are added.7. A composition of matter as claimed in wherein claim 2 , in addition claim 2 , other metallic oxides are added.8. A method of preparation of a composition of claim 1 , said method comprising:a. providing a mixture of aluminum oxide and silicon oxide; i. water,', {'sup': '−', 'ii. a source of OH,'}, 'iii. carbon, and,', 'iv. a source of divalent cations;, 'b. providing a mixture, having a basic pH, in a slurry form, of'}c. mixing A. and B. together using shear force to form a stiff gel;d. exposing the product of C. to a temperature in the range of 160° F. to 250° F. for a period of time to provide a thermoset ceramic.9. The method as claimed in wherein the temperature range is from 175° F. to 225° F.10. The method as claimed in wherein the ...

INSULATION PANEL

Insulation panel made from an insulation panel precursor comprising at least one modified layered silicate. 115-. (canceled)16. An insulation panel precursor comprising at least one modified layered mineral and optionally at least one fibrous component.17. The insulation panel precursor according to claim 16 , wherein the modified layered mineral is a modified layered silicate or a layered double hydroxide.18. The insulation panel precursor according to claim 16 , wherein the insulation panel precursor comprises at least one spatial structure.19. The insulation panel precursor according to claim 18 , wherein the spatial structure is in the form of a corrugated film claim 18 , honeycomb-like claim 18 , trapezial-corrugated claim 18 , perpendicular spiral-shaped claim 18 , grid-like claim 18 , pyramid-shaped or spherical structure.20. The insulation panel precursor according to claim 18 , wherein the insulation panel precursor or the spatial structure includes cavities that are distributed within the insulation panel precursor or the spatial structure.21. The insulation panel precursor according to claim 20 , wherein the cavities are filled with at least one of air claim 20 , inert gas claim 20 , foamed inorganic insulation material claim 20 , foamed organic insulation material and high-performance polymer foam.22. The insulation panel precursor according to which comprises a plurality of different or equal spatial structures.23. The insulation panel precursor according to claim 18 , wherein the spatial structure is formed from modified layered minerals.24. The insulation panel precursor according to claim 17 , wherein the modified layered silicate is at least one of organically or inorganically modified.25. A process of preparing an insulation panel precursor according to comprising the following steps:(a) providing a dispersion comprising at least one modified layered silicate in at least one solvent,(b) applying the dispersion obtained in step (a) onto a surface,(c ...

SKINNING OF CERAMIC HONEYCOMB BODIES

A ceramic honeycomb body having a skin that does not block partial cells extending from an inlet face to an outlet face at an outer periphery portion of the body. A method of making the ceramic honeycomb body having the skin includes disposing a sheet on an outer peripheral wall of a honeycomb core having an outer surface spaced apart from interiors of the partial cells and skinning the body having the sheet disposed thereon. Subsequent curing in the method bonds the skin to cell walls of the body spaced apart from interiors of the partial cells. 1. A method of forming a honeycomb body from a honeycomb core that comprises intersecting walls that form cell channels extending from a first end face to a second end face of the honeycomb core , the method comprising:disposing a filling material on an outer peripheral surface of the honeycomb core to fill peripheral partial cell channels at the outer peripheral surface while outer most portions of the intersecting walls of the peripheral partial cell channels are exposed,disposing skin batch on the filling material and on the outer most portions of the intersecting walls, wherein the filling material prevents the skin batch from filling the peripheral partial cell channels; andcuring the skin batch to form a cured skin and to bond the cured skin to the outer most portions of the intersecting walls of the honeycomb core to form the honeycomb body, such that the cured skin forms an outer wall of each of the peripheral partial cell channels,wherein curing the skin batch comprises sacrificing at least a portion of the filling material to open each peripheral partial cell channel from the first end face to the second end face.2. The method of claim 1 , wherein disposing the filling material on the outer peripheral surface comprises cleaning away at least some of the filling material in order to expose the outer most portions of the intersecting walls.3. The method of claim 1 , wherein curing the skin batch comprises heating ...

USE OF COMPOUNDS CONTAINING ALUMINIUM OXIDE AND SILICON OXIDE FOR PRODUCING A HYDROPHILIC BUILDING PRODUCT

The use of a binder system comprising compounds containing aluminium oxide and silicon oxide for producing a hydrophilic building product, characterized in that the sum of the oxides calculated as AlOand SiOin the binder system is ≧40% by weight, based on the water-free binder system, and the contact angle of an oil drop placed on the surface of the cured building product is ≧90°, where the contact angle determination is carried out under water, is proposed. The said hydrophilicity makes the building product easy to clean, with simple rinsing with water often being sufficient. 1. A method for producing a hydrophilic building product bycontacting with water, setting and curing, a binder system comprising compounds containing aluminum oxide and silicon oxide,wherein the binder system comprises hydraulic binder, latent hydraulic binder, and/or pozzolanic binder; and alkali metal silicate,wherein the hydraulic binder is selected from portland cement, aluminate cement and mixtures thereof,wherein the content of portland cement and/or aluminate cement in the binder system is ≦20% by weight, based on a water-free binder system,{'sub': 2', '3', '2, 'wherein the sum of the oxides calculated as AlOand SiOin the binder system is ≧40% by weight, based on the water-free binder system, and wherein the contact angle of an oil drop placed on the surface of the cured building product is ≧90°, where the contact angle determination is carried out under water.'}2. The method of claim 1 , wherein the sum of the oxides calculated as AlOand SiOin the binder system is ≧50% by weight based on the water-free binder system.3. The method of claim 1 , wherein the contact angle is ≧100°.4. The method of claim 1 , wherein the content of the oxides calculated as SiOin the binder system is ≧15% by weight claim 1 , based on the water-free binder system.5. The method of claim 1 , wherein the binder system further comprises compounds containing titanium oxide and/or zirconium oxide and the sum of the ...

Construction material without a hydraulic binder

The invention relates to a method for producing a solid construction material which is preferably substantially free of hydraulic binder, comprising the steps of: a. extracting a mineral fraction comprising argillaceous particles of a soil; b. optionally adjusting the particle size of the mineral fraction extracted, in particular in relation to its clay, sand, gravel or loam content, if necessary; c. preparing a first aqueous grout from at least one part of the mineral fraction extracted and optionally adjusted in terms of particle size; d. adding a dispersant that can disperse the argillaceous particles in the first grout in order to obtain a second aqueous grout, e. adding a coagulant that can promote the agglomeration of the argillaceous particles in the second grout in order to obtain an aqueous construction material grout; f introducing the construction material grout into a formwork; and g. allowing the evaporation of the water contained in the material grout in order to obtain a solid construction material.

RENEWABLE ADMIXTURES FOR CEMENTITIOUS COMPOSITIONS

Cementitious compositions comprising a hydraulic cementitious material, a compound selected from the group consisting of a polyhydroxy aromatic compound, a polycarboxylic acid-containing compound or a salt thereof, ascorbic acid or a salt thereof, or a combination thereof, and a particulate material or a water soluble silicate-containing material that interacts with the compound are described herein. The polyhydroxy aromatic compound can be a water soluble compound having from two to thirty hydroxyl groups. The particulate material can exhibit a particle size distribution, wherein at least about 90% by weight of the particles have a diameter of less than 2 mm. Suitable particulate materials include nanoparticles and microparticles. The cementitious compositions can be used to form building materials. The cementitious compositions are especially suited for inhibiting corrosion of reinforcing steel bars embedded in concrete mixtures. Methods of making and using the cementitious composition are also disclosed. 1. A composition , comprising:a hydraulic cementitious material; a polyhydroxy aromatic compound having three or more hydroxyl groups,', 'ascorbic acid or a salt thereof, and', 'a combination thereof,, 'a hydroxyl containing compound selected from the group consisting ofwherein the hydroxyl containing compound is present in an amount of from 0.1% to 3% by weight, based on the total weight of the cementitious material, anda particulate material, a water soluble silicate-containing material, or a combination thereof, wherein the particular material and/or the water soluble silicate-containing material, when present, interacts with the hydroxyl containing compound.2. The composition of claim 1 , wherein the hydraulic cementitious material is selected from the group consisting of ordinary Portland cement claim 1 , calcium aluminate cement claim 1 , calcium phosphate cement claim 1 , calcium sulfate hydrate claim 1 , calcium aluminate sulfonate cement claim 1 , ...

Honeycomb structure comprising a cement skin composition with crystalline inorganic fibrous material

Disclosed is a honeycomb support structure comprising a honeycomb body and an outer layer or skin formed of a cement that includes an inorganic filler material having a first coefficient of thermal expansion from 25 C to 600 C and a crystalline inorganic fibrous material having a second coefficient of thermal expansion from 25 C to 600 C. Skin cement composition controls level of cement liquid/colloid components, for example water, colloidal silica, and methylcellulose migration into the substrate during the skin application process to form barrier to skin wetting and staining during the washcoating process.

IN-SITU GENERATION OF GLASS-LIKE MATERIALS INSIDE SUBTERRANEAN FORMATION

Systems and methods for forming a permanent plug in a subterranean formation include providing a solution of colloidal silica and pumping the colloidal silica into a bore of a subterranean well so that the colloidal silica penetrates pores of the subterranean formation. The colloidal silica within the pores of the subterranean formation is dehydrated to form a glass-like material within the pores of the subterranean formation. 1. A method for forming a permanent plug in a subterranean formation , the method including:providing a solution of colloidal silica;pumping the colloidal silica into a bore of a subterranean well so that the colloidal silica penetrates pores of the subterranean formation;dehydrating the colloidal silica within pores of the subterranean formation to form a glass-like material within the pores of the subterranean formation.2. The method of claim 1 , further comprising before pumping the colloidal silica into the bore of the subterranean well claim 1 , mixing an activator with the colloidal silica so that the colloidal silica forms a gel within the pores of the subterranean formation.3. The method of claim 1 , wherein dehydrating the colloidal silica includes lowering a microwave system into the bore of the subterranean well and operating the microwave system to generate heat.4. The method of claim 3 , further including locating a microwave enabler within the subterranean well and heating the microwave enabler with the microwave system.5. A method for forming a permanent plug in a subterranean formation claim 3 , the method including:providing a solution of colloidal silica, the solution of colloidal silica including a stabilized mixture of silica particles suspended in a liquid;pumping the colloidal silica into a bore of a subterranean well so that the colloidal silica penetrates pores of the subterranean formation;providing for gelling-up of the solution of colloidal silica to provide a gel of colloidal silica within pores of the subterranean ...

STABILIZED REFRACTORY COMPOSITIONS

A refractory composition including refractory aggregate, one or more matrix components, and silicate-coated set accelerator particles. The silicate-coated set accelerator particles can include one more of silicate-coated calcium hydroxide, magnesium hydroxide, calcium chloride, calcium carbonate, magnesium carbonate and calcium sulfate. Suitable silicate coatings include sodium silicate, potassium silicate, lithium silicate and mixtures thereof. A method of recovering an aged refractory composition, a settable composition and a method of manufacturing silicate-coated calcium hydroxide particles are also provided. 1. A refractory composition comprising:(a) refractory aggregate;(b) one or more matrix components; and(c) silicate-coated set accelerator particles.2. The refractory composition of claim 1 , wherein said silicate-coated set accelerator particles comprise silicate-coated particles of one or more of Ca(OH) claim 1 , magnesium hydroxide claim 1 , calcium chloride claim 1 , calcium carbonate claim 1 , magnesium carbonate claim 1 , lithium carbonate or calcium sulfate.3. The refractory composition of claim 1 , wherein said silicate coating is chosen from the group consisting of sodium silicate claim 1 , potassium silicate claim 1 , lithium silicate and mixtures thereof.4. The refractory composition of claim 2 , wherein said silicate coating is chosen from the group consisting of sodium silicate claim 2 , potassium silicate claim 2 , lithium silicate and mixtures thereof.5. The refractory composition of claim 2 , wherein said silicate-coated set accelerator particles comprise silicate-coated Ca(OH)particles claim 2 , wherein said silicate coating is chosen from the group consisting of sodium silicate claim 2 , potassium silicate claim 2 , lithium silicate and mixtures thereof.6. The refractory composition of claim 5 , wherein said silicate-coated set accelerator particles comprise sodium silicate-coated Ca(OH)particles.7. The refractory composition of any one of ...

Composite Cementitious Material For Cement Compositions

Disclosed herein are methods and compositions for cementing. An example method may comprise providing a cement composition. The cement composition may comprise a composite cementitious material comprising a micronized particulate solid and a monophase amorphous hydraulic binder. The micronized particulate solid may have a mean particle size of about 500 microns or less. The cement composition may further comprise water. The method may further comprise introducing the cement composition into a subterranean formation; and allowing the cement composition to set. 1. A method of cementing comprising: a composite cementitious material comprising a micronized particulate solid and a monophase amorphous hydraulic binder, wherein the micronized particulate solid has a mean particle size of about 500 microns or less; and', 'water, 'providing a cement composition comprisingintroducing the cement composition into a subterranean formation; andallowing the cement composition to set.2. The method of claim 1 , wherein the cement composition is allowed to set in a wellbore annulus to form a cement sheath.3. The method of claim 1 , wherein the cementing composition is allowed to set in the wellbore to form a plug.4. The method of claim 1 , wherein the introducing comprises pumping the cement composition downhole through a casing string.5. The method of claim 1 , wherein the monophase amorphous hydraulic binder is deposited on the micronized particulate solid.6. The method of claim 5 , wherein the micronized particulate solid comprises a pozzolanic substrate on which the monophase amorphous hydraulic binder is deposited.7. The method of claim 1 , wherein the monophase amorphous hydraulic binder is at least partially coated on the micronized particulate solid.8. The method of claim 1 , wherein the micronized particulate solid comprises at least one material selected from the group consisting of pumice claim 1 , fly ash claim 1 , quartz claim 1 , micronized crystalline silica claim 1 , ...

Thermally insulating fire-protection moulding and process for producing same

The thermally insulating fire-protection moulding is characterized in that it contains at least one lightweight filler, one reaction product of the thermal curing of an organic-inorganic hybrid binder, one mineral that eliminates water, and also fibres and/or wollastonite, and is impermeable to smoke.

Chemical-Resistant Quartz-Based Casting Composition

A quartz-based casting composition provides excellent resistance to attack by chemicals, including weak and strong acids. The quartz-based casting composition is useful as concrete in various construction applications where corrosion resistance is needed. The casting composition includes a dry component and a wet component. The dry component includes about 25% to about 100% by weight quartz and the corrosion resistance increases with increasing quartz content.

ADDITIVE FORMULATION FOR REDUCTION OR PREVENTION OF MICROBIALLY INDUCED CORROSION IN CONCRETE OR CEMENTITIOUS MATERIAL

An additive formulation for reduction or prevention of microbially induced corrosion in concrete, cementitious material (such as mortar or grout), or a combination thereof. The additive formulation comprises a Quat Silane and a fungicide, wherein the ratio of the Quat Silane to the fungicide in the formulation is in a range of about 10:1 to about 1:10, preferably in a range of about 5:1 to about 1:5. 1. A method of using comprising:adding an additive formulation comprising a Quat Silane and a fungicide to a material selected from the group consisting of concrete, a cementitious material, or a combination thereof, wherein the addition results in a reduction or an elimination of microbially induced corrosion.2. The method of using according to claim 1 , wherein the Quat Silane is in a ratio of the Quat Silane to the fungicide in a range of about 10:1 to about 1:10.3. The method of using according to claim 2 , wherein the Quat Silane is in a ratio of the Quat Silane to the fungicide in a range of about 5:1 to about 1:5.4. The method of using according to claim 1 , wherein the addition is to a water-free system.5. The method of using according to claim 1 , wherein the additive formulation further comprises a defoamer.6. The method of using according to claim 5 , wherein the defoamer is selected from the group consisting of polyether amine claim 5 , ethoxylated alcohol claim 5 , silicone-based defoamer claim 5 , tributyl phosphate claim 5 , and a combination thereof.7. The method of using according to claim 5 , wherein the defoamer is from about 2 weight % to about 25 weight % of the amount of the Quat Silane in the formulation8. The method of using according to claim 1 , wherein the fungicide is selected from the group consisting of Sodium OrthophenylPhenol claim 1 , Imazalil Sulphate claim 1 , diiodomethyl-p-tolylsulfone claim 1 , carbamate claim 1 , isothiazolinone claim 1 , azole claim 1 , chlorothalonil claim 1 , zinc pyrithione claim 1 , copper pyrithione claim 1 , ...

Method of providing chemically inert concrete

A method of providing a chemically inert concrete includes the steps of providing and mixing an aqueous colloidal silica dispersion with a quantity of glass particles. The chemically inert concrete includes, based on dry weight, about 50% to about 95% by weight of the glass particles and about 3% to about 40% by weight of the colloidal silica particles. The chemically inert concrete is substantially or totally free of Group I and Group II metal oxides, exclusive of the glass particles, and is substantially or totally free of cement.

Disk and process for producing base material for disk, and disk roll

The present invention relates to a process for producing a base material for disks of disk rolls, in which the disk roll contains a rotating shaft and a plurality of the disks fitted on the rotating shaft by insertion whereby the outer peripheral surface of the disks serves as a conveying surface, in which the process contains molding a slurry raw material containing inorganic fibers, an inorganic filler having an aspect ratio of from 1 to 25 and an inorganic binder into a plate shape; and drying the molded plate.

COMPOSITIONS AND METHODS FOR CONTROLING SETTING OF CARBONATABLE CALCIUM SILICATE CEMENTS CONTAINING HYDRATING MATERIALS

The invention provides compositions and methods for controlling setting of carbonatable calcium silicate compositions that are contaminated with hydrating materials. These carbonatable calcium silicate cements are suitable for use as non-hydraulic cement that hardens by a carbonation process and may be applied in a variety of concrete components in the infrastructure, construction, pavement and landscaping industries. 1. A calcium silicate composition comprising one or more discrete calcium silicate phases and one or more set-retarding or hydration-controlling compounds or admixtures , wherein the one or more discrete calcium silicate phases are selected from CS (wollastonite or pseudowollastonite) , C3S2 (rankinite) , C2S (belite , larnite , bredigite) , and an amorphous calcium silicate phase , and wherein the calcium silicate composition is suitable for carbonation with COat a temperature of about 30° C. to about 90° C. to form CaCOwith a mass gain of about 10% or more.2. The calcium silicate composition of claim 1 , wherein elemental Ca and elemental Si are present in the composition at a molar ratio from about 0.8 to about 1.2;and metal oxides of Al, Fe and Mg are present in the composition at about 30% or less by mass.3. The calcium silicate composition of claim 1 , wherein the set-retarding or hydration-controlling compounds or admixtures comprise one or more of organic compounds.4. The calcium silicate composition of claim 3 , wherein the one or more of organic compounds are selected from lignosulfonates claim 3 , hydroxycarboxylic acid and salts thereof claim 3 , phosphonates claim 3 , and sugars.5. The calcium silicate composition of claim 1 , wherein the set-retarding or hydration-controlling compounds or admixtures comprise one or more of inorganic compounds.6. The calcium silicate composition of claim 5 , wherein the one or more of inorganic compounds are selected from borates and phosphates.7. The calcium silicate composition of claim 1 , wherein the ...

SKINNING OF CERAMIC HONEYCOMB BODIES

A ceramic honeycomb body having a skin that does not block partial cells extending from an inlet face to an outlet face at an outer periphery portion of the body. A method of making the ceramic honeycomb body having the skin includes disposing a sheet on an outer peripheral wall of a honeycomb core having an outer surface spaced apart from interiors of the partial cells and skinning the body having the sheet disposed thereon. Subsequent curing in the method bonds the skin to cell walls of the body spaced apart from interiors of the partial cells. 1. A honeycomb body , comprising: a plurality of intersecting channel walls extending from an inlet face to an outlet face defining cell channels therebetween, including partial cell channels, and', 'an outer periphery extending from the inlet face to the outlet face,, 'a honeycomb core, comprisingwherein each partial cell channel has a gap in its respective intersecting walls at the outer periphery, andwherein the outer periphery comprises an after-applied skin disposed across the gaps such that each partial cell channel comprises a volume from the inlet face to the outlet face being enclosed by the channel walls and the after-applied skin, and wherein each partial cell channel is open from the inlet face to the outlet face.2. The body of claim 1 , wherein the plurality of channel walls are porous.3. The body of claim 1 , wherein the after-applied skin comprises a cold set cement.4. The body of claim 1 , wherein the after-applied skin comprises a fired or sintered ceramic.5. The body of claim 1 , wherein the after-applied skin comprises an inorganic fibrous reinforcing material.6. The body of claim 1 , wherein the after-applied skin comprises a plurality of layers.7. The body of claim 1 , wherein the plurality of layers comprise different compositions.8. A honeycomb body claim 1 , comprising: a plurality of intersecting channel walls extending from an inlet face to an outlet face defining cell channels therebetween, ...

Cement

The present disclosure relates to a cementious composition (e.g. for mounting a strain gauge within a gas turbine engine) comprising: part A comprising an acidic solution of a metal salt; part B comprising silica and one or more metal oxides; and part C comprising colloidal silica and/or a silicate solution. Part A may comprise an acidic aluminium phosphate solution. Part B may comprise one or more or all of titanium oxide, chromium oxide, alumina and barium oxide

Insulating product for the refractory industry, corresponding insulating materials and products, and uses

An insulating product for the refractory industry or an insulating material as intermediate for production of such a product, and a corresponding insulating material/insulating product are provided. Likewise the use of a matrix encapsulation process in the production of an insulating product for the refractory industry and a corresponding insulating product and/or an insulating material as intermediate for production of such a product are provided.

METHOD FOR PRODUCING A MOLDED PART FROM GLASS FIBER AND/OR MINERAL FIBER MATERIAL, MOLDED PART WHICH CAN BE OBTAINED USING SAID METHOD, AND MANUFACTURING UNIT FOR THIS PURPOSE

The invention relates to a method for producing a molded part from glass fiber and/or mineral fiber material with an inorganic binder. The inorganic binder is cured using electromagnetic radiation in order to form the molded part. The tool is designed to be at least partly permeable for the electromagnetic radiation for curing purposes, and the inorganic binder is a binder which can be cured by electromagnetic radiation. The invention further relates to a molded part which can be obtained in the aforementioned manner. Finally, the invention relates to a manufacturing unit for producing a molded part from glass fiber and/or mineral fiber material and an inorganic binder. The manufacturing unit comprises a device for providing a tool for forming the molded part, a device for introducing the glass fiber and/or mineral fiber material and the inorganic binder into the tool, a device for generating electromagnetic radiation to cure the inorganic binder in order to form a molded part, and optionally a device for removing the molded part from the tool. 2. The process as claimed in claim 1 , wherein the glass fiber material and/or mineral fiber material is a textured glass fiber material and/or mineral fiber material.3. The process as claimed in wherein the glass fiber material is an E glass claim 1 , S glass or ECR glass or combinations of these.4. The process as claimed in wherein the mold that is transparent to the electromagnetic radiation is or includes a material selected from the group consisting of polypropylene (PP) claim 1 , polyethylene (PE) claim 1 , polytetrafluoroethylene (PTFE) claim 1 , polyvinylchloride (PVC) claim 1 , glass claim 1 , ceramic or mixtures of these.5. The process as claimed in wherein the inorganic binder is or includes a sodium- claim 1 , potassium- and/or lithium-based waterglass claim 1 , and/or a silica sol.6. The process as claimed in wherein the proportion of the inorganic binder in the molding is not more than 15% by weight of solids ...

COLD SET COMPOSITION FOR CERAMIC BODIES

Disclosed are ceramic articles comprising ceramic honeycomb bodies and an aqueous composition, for example in the form of a cold-set plug, as well as processes for preparing ceramic articles and processes for making an aqueous composition for use with ceramic articles, for example as a cold-set plug composition. 1. A ceramic article comprising:a fired ceramic honeycomb body having a plurality of cell channels; andan unfired composition comprising a refractory filler, an inorganic binder, and an organic binder;{'sub': 50', '90, 'wherein the refractory filler comprises particles have a din the range from about 10 μm to about 40 μm and a dless than about 110 μm.'}2. The ceramic article of claim 1 , wherein the particles of the refractory filler have a d10 greater than about 2 μm3. The ceramic article of claim 1 , wherein the unfired composition is disposed in at least one cell channel of the fired ceramic honeycomb body in the form of at least one plug.4. The ceramic article of claim 3 , wherein the at least one plug has a depth in the cell channel ranging from about 4 mm to about 12 mm.5. The ceramic article of claim 3 , wherein the at least one plug has a depth in the cell channel ranging from about 6 mm to about 10 mm.6. The ceramic article of claim 1 , wherein the inorganic binder is a colloidal silica that is present in an amount ranging from about 5% to about 20% by weight as a superaddition.7. The ceramic article of claim 1 , wherein the organic binder is present in the composition in an amount ranging from about 1.0% to about 5.0% by weight.8. The ceramic article of claim 1 , wherein the organic binder is chosen from methylcellulose claim 1 , Xanthan gum claim 1 , actigum claim 1 , and polyvinyl alcohol.9. The ceramic article of claim 1 , wherein the organic binder comprises methylcellulose.10. The ceramic article of claim 1 , wherein the particles of the refractory filler are chosen from particles of cordierite claim 1 , fused silica claim 1 , silicates claim ...

COMPOSITION OF A CEMENT ADDITIVE MATERIAL AS AN ADDITIVE TO CEMENTITIOUS MINERAL ADMIXTURES, AND UTILISED AS LATENT HYDRAULIC BINDERS TO IMPROVE THE OUTCOME OF CEMENTITIOUS PRODUCTS

A composition of a cement additive material to improve durability of cementitious structures, was disclosed. The cement additive composition includes an admixture of one or more of divalent magnesium metal silicates with capacity to act as a latent hydraulic binder in said composition activated by a hydration process under aqueous conditions, and in particular the divalent metal silicate is magnesium-dominated silicate, preferably comprising mineral groups of olivines, orthopyroxenes, amphiboles, talc and serpentines or mixtures thereof. The composition also includes chloride ions or brine. Applications of the compositions are also disclosed, in particular to utilize a property of hydration as a major trigger for the latent hydraulic reaction of magnesium silicates, particularly for said olivines, when exposed to water and brines, in order to obtain a cementitious material becoming self healing. 1. A cementitious mixture for self healing comprising:a) one or more divalent magnesium dominated silicates that in neutral or basic aqueous solutions have the capacity to be a latent hydraulic binder comprising 2% to 99% of divalent magnesium dominated silicate by weight of total hydraulic solid materials; andb) chloride ions or brine with a chloride concentration of between 0.7% and 10% by weight of water.2. The mixture of claim 1 , wherein the magnesium dominated silicate is selected from the group of minerals consisting of olivines claim 1 , orthopyroxenes claim 1 , amphiboles claim 1 , talc and serpentines claim 1 , or mixtures thereof.3. The mixture of claim 1 , further comprising accessory sulphide and oxide minerals containing one or more of the cations nickel claim 1 , zinc and chromium.4. The mixture of claim 2 , further comprising accessory sulphide and oxide minerals containing one or more of the cations nickel claim 2 , zinc and chromium.5. A method for making cement structures with self healing and/or antifouling properties claim 2 , comprising the steps of:a) ...

AEROGEL- AND/OR XEROGEL-BASED MASS FOR ADVANCED MANUFACTURING AND USE THEREOF

A composition, in particular for use as a printable and/or extrudable mass, comprises or consists of: 10-99.99 vol. % of a high-porosity material, whereby the high-porosity material is an aerogel and/or a xerogel, 0.001-5.0 vol. % of an organic binding promoter and, optionally, balance to 100 vol. % of further components. 1. Composition , in particular for use as a printable and/or extrudable mass , comprising or consisting of:a) 10-99.99 vol. %, especially 60-99.99 vol. %, in particular 80-99.99 vol. %, of a high-porosity material, whereby the high-porosity material is an aerogel and/or a xerogelb) 0.001-5.0 vol. % of an organic binding promoterc) optionally, balance to 100 vol. % of further components.2. Composition according to claim 1 , whereby the volume proportion of the high-porosity material claim 1 , especially the aerogel claim 1 , in the composition is 85-99.99 vol. % claim 1 , most preferred 90-99.95 vol. %.3. Composition according to any of - claim 1 , whereby apart from the high-porosity material claim 1 , in particular the aerogel claim 1 , the volume proportion of all of the other constituents of the composition in dry state is lower than 7 vol. % claim 1 , preferably lower than 3 vol. % and even more preferably lower than 1 vol. %.4. Composition according to any of - claim 1 , whereby the high-porosity material comprises or consist of an aerogel in the form of a silica-based aerogel claim 1 , especially a hydrophobic silica-based aerogel claim 1 , with a particle density of 140-170 kg/m.5. Composition according to any of - claim 1 , whereby the organic binding promotor comprises or consists of a surfactant claim 1 , a block co-polymer claim 1 , a fluoropolymer claim 1 , a cellulose ether claim 1 , carbohydrate starch ether and/or a redispersible polymer.6. Composition according to claim 5 , whereby the organic binding promotor comprises or consists of a surfactant claim 5 , especially selected from the groups of ionic surfactants claim 5 , ...

CEMENT MIXTURES FOR PLUGGING HONEYCOMB BODIES AND METHODS OF MAKING THE SAME

A cement mixture for applying to a honeycomb body that includes: (i) inorganic ceramic particles; (ii) an inorganic binder; (iii) an organic binder comprising one or more of a hydrophilic polymer and a hydrophilic additive; and (iv) an aqueous liquid vehicle. The cement mixture exhibits a cement viscosity of less than 7000 Pa·s at a shear rate of less than 0.1/sec and greater than 25 Pa·s at a shear rate from 20/sec to 100/sec. 1. A cement mixture for applying to a honeycomb body , the cement mixture comprising:(i) inorganic ceramic particles;(ii) an inorganic binder;(iii) an organic binder comprising one or more of a hydrophilic polymer and a hydrophilic additive; and(iv) an aqueous liquid vehicle,wherein the cement mixture exhibits a cement viscosity of less than 7000 Pa·s at a shear rate of less than 0.1/sec and greater than 25 Pa·s at a shear rate from 20/sec to 100/sec.2. The cement mixture of claim 1 , further comprising: a solids component and a liquids component claim 1 , the solids component comprising the inorganic ceramic particles and the liquids component comprising the inorganic binder claim 1 , the organic binder and the aqueous liquid vehicle claim 1 , wherein the liquids component further exhibits a liquid viscosity from 50 centipoise to 1500 centipoise at a shear rate from 0.001/sec to 0.007/sec.3. The cement mixture of claim 1 , further comprising: a solids component and a liquids component claim 1 , the solids component comprising the inorganic ceramic particles and the liquids component comprising the inorganic binder claim 1 , the organic binder and the aqueous liquid vehicle claim 1 , wherein the liquids component further exhibits a liquid viscosity from 100 centipoise to 1000 centipoise at a shear rate from 0.001/sec to 0.007/sec.4. The cement mixture of claim 1 , further comprising: a solids component and a liquids component claim 1 , the solids component comprising the inorganic ceramic particles and the liquids component comprising the ...

CEMENT WITH REDUCED PERMEABILITY

A cementitious mixture to make structures with reduction of gas permeability was disclosed. The mixture includes, cementitious materials, and one or more divalent magnesium-iron silicate that in neutral or basic aqueous solutions have the capacity to be a latent hydraulic binder comprising 2% to 99% of divalent magnesium-iron silicate by weight of total hydraulic solid materials. This can be used to produce a cementitious structure for preventing gas transfer between a first region and a second region. A cement slurry was also disclosed. 1. A cementitious mixture for reduced gas permeability that comprises:a) cement;b) one or more divalent magnesium-iron silicates of the mineral group olivines that in neutral or basic aqueous solutions have the capacity to be a latent hydraulic binder comprising 2% to 99% of divalent magnesium-iron silicate by weight of total hydraulic solid materials.2. The cementitious mixture of claim 1 , wherein the magnesium-iron silicate is by weight of total hydraulic solid is between 10% and 98%.3. The cementitious mixture of claim 1 , wherein the magnesium-iron silicate by weight of total hydraulic solid is between 15% and 99%.4. The cementitious mixture of claim 1 , wherein the magnesium-iron silicate by weight of total hydraulic solid is between 10% and 55%.5. The cementitious mixture of claim 1 , wherein the magnesium-iron silicate by weight of total hydraulic solid is between 20% and 50%.6. The cementitious mixture of claim 1 , wherein the magnesium-iron silicate by weight of total hydraulic solid is between 20% and 80%.7. The cementitious mixture of claim 1 , wherein the magnesium-iron silicate by weight of total hydraulic solid is between 15% and 25%.8. The cementitious mixture of claim 1 , wherein the magnesium-iron silicate comprises mineral group olivines claim 1 , orthopyroxenes claim 1 , amphiboles claim 1 , serpentines claim 1 , or a mixture thereof.9. The cementitious mixture of claim 1 , wherein the magnesium-iron silicate ...

COMPOSITIONS AND METHODS FOR CONTROLING SETTING OF CARBONATABLE CALCIUM SILICATE CEMENTS CONTAINING HYDRATING MATERIALS

The invention provides compositions and methods for controlling setting of carbonatable calcium silicate compositions that are contaminated with hydrating materials. These carbonatable calcium silicate cements are suitable for use as non-hydraulic cement that hardens by a carbonation process and may be applied in a variety of concrete components in the infrastructure, construction, pavement and landscaping industries. 110-. (canceled)11. A method for suppressing premature setting of a carbonateable calcium silicate composition comprising one or more hydraulic contaminants , comprising adding one or more set-retarding or hydration-controlling compounds or admixtures to a carbonateable calcium silicate composition or a precursor composition thereof.12. A method for accelerating the drying rate or the curing rate of a carbonatable calcium silicate cement comprising one or more hydraulic contaminants , comprising adding one or more set-retarding or hydration-controlling compounds or admixtures to a carbonateable calcium silicate composition or a precursor composition thereof.13. The method of claim 11 , wherein the set-retarding or hydration-controlling compounds or admixtures comprise one or more of organic compounds.14. The method of claim 13 , wherein the one or more of organic compounds are selected from lignosulfonates claim 13 , hydroxycarboxylic acid and salts thereof claim 13 , phosphonates claim 13 , and sugars.15. The method of claim 11 , wherein the set-retarding or hydration-controlling compounds or admixtures comprise one or more of inorganic compounds.16. The method of claim 15 , wherein the one or more of inorganic compounds are selected from borates and phosphates.17. The method of claim 11 , wherein the set-retarding or hydration-controlling compounds or admixtures comprise one or more of organic compounds and one or more of inorganic compounds.18. The method of any of claim 11 , wherein the set-retarding compound or admixture comprises a sugar-based ...

PROCESSES FOR MAKING A SUPER-INSULATING CORE FOR A VACUUM INSULATING STRUCTURE

A method for forming a super-insulating material for a vacuum insulated structure for an appliance includes disposing hollow glass spheres within a rotating drum, wherein a plurality of interstitial spaces are defined between the hollow glass spheres. An anchor material is disposed within the rotating drum. The hollow glass spheres and the anchor material are rotated within the rotating drum, wherein the anchor material is mixed with the hollow glass spheres to partially occupy the interstitial spaces. A silica-based material is disposed within the rotating drum. The silica-based material is mixed with the anchor material and the hollow glass spheres to define a super-insulating material, wherein the silica-based material attaches to the anchor material and is entrapped within the interstitial spaces. The silica-based material and the anchor material occupy substantially all of an interstitial volume defined by the interstitial spaces. 151-. (canceled)52. An insulated structure for an appliance , the insulated structure comprising:an inner liner and an outer wrapper that are attached together to define an insulating cavity therein;a plurality of glass spheres disposed within the insulating cavity, the plurality of glass spheres defining interstitial spaces therebetween;a coating material disposed at least partially on outer surfaces of the plurality of glass spheres, wherein the plurality of glass spheres and the coating material define an adhering base material; anda silica-based material disposed on at least a portion of the adhering base material, wherein the coating material and the silica-based material occupy substantially all of an interstitial volume defined by the interstitial spaces.53. The insulated structure of claim 52 , wherein the coating material is a functional group material.54. The insulated structure of claim 53 , wherein the functional group material defines magnetic characteristics of glass spheres of the plurality of glass spheres to define ...

SOLIDIFYING SLUDGE

Embodiments provided herein relate to removing liquid from soil or other moisture rich media. In some embodiments, a method for solidifying sludge is provided and involves providing a sludge, fluidizing the sludge to form a fluidized sludge, adding a gelling agent to the fluidized sludge in an amount sufficient to form a slurry, and adding a dewatering agent to the slurry in an amount sufficient to dewater the slurry, thereby solidifying the sludge. 1. A method for solidifying sludge comprising:providing a sludge;fluidizing the sludge to form a fluidized sludge;adding a gelling agent to the fluidized sludge in an amount sufficient to form a slurry; andadding a dewatering agent to the slurry in an amount sufficient to dewater the slurry, thereby solidifying the sludge.2. The method of claim 1 , further comprising:applying the slurry with dewatering agent to a location where a solidified sludge is desired; andallowing the slurry with dewatering agent to solidify at the location into a solidified sludge.37. The method of claim 1 , wherein the slurry can solidify within days after adding the dewatering agent.4. The method of claim 1 , wherein an amount of the gelling agent used is less than 10% by weight of the fluidized sludge.5. (canceled)6. The method of claim 1 , further comprising adding a surfactant claim 1 , a flocculant claim 1 , a surfactant claim 1 , or combinations thereof to the slurry.7. The method of claim 6 , wherein the flocculant includes at least one of a polyethylene oxide or a polyacrylamide.8. (canceled)9. The method of claim 1 , wherein the dewatering process occurs concurrently with a solidifying process.10. The method of claim 1 , wherein the fluidized sludge comprises a water content between 180% to 300% by weight of the dredged sludge.11. The method of claim 1 , wherein the gelling agent comprises concrete.12. The method of claim 1 , wherein the gelling agent comprises at least one of: cement clinker claim 1 , fly ash claim 1 , lime claim 1 , ...

Tailings stream treatment processes

A process for treating a tailings stream comprises (a) contacting (1) a gelling agent and (2) an activator with said tailings stream to produce a gel; (b)entrapping solids including sand and clay, and other solid particles with the gel; and (c) allowing the gel to strengthen and solidify to produce a trafficable deposit; wherein the tailings stream comprises water and solids, which solids comprise sand, clay and other solids particles, and wherein 5% by volume to 100% by volume of the solids have a particle size less than 0.05 mm, based on the total volume of the solids. The process may further comprises spreading the gel produced in step (a) or the trafficable deposit produced in step (c) over a surface. The present invention is particularly useful to treat tailings streams produced in processes to extract bitumen from oil sands ores.

METHOD FOR PREPARING ACTIVE CALCIUM SILICATE

The present invention provides a method for preparing an active calcium silicate. The method comprises: mixing a lime milk, a fly ash desilicated liquid and a particle diameter control agent and reacting them, to obtain a active calcium silicate slurry. The particle diameter control agent is one of a pyrophosphoric acid salt, a metaphosphoric acid salt, a polyphosphoric acid salt, a polyacrylic acid ester, and a polyacrylic acid salt. The preparation method of the present invention can efficiently reduce large particles of the active calcium silicate, so as to reduce the influence of the large particles on papermaking process and paper quality. 1. A method for preparing an active calcium silicate , comprising: mixing a lime milk , a fly ash desilicated liquid and a particle diameter control agent and reacting them , drying the resulting product slurry to obtain the active calcium silicate , wherein the particle diameter control agent is one of a pyrophosphoric acid salt , a metaphosphoric acid salt , a polyphosphoric acid salt , a polyacrylic acid ester , and a polyacrylic acid salt; andwherein the pyrophosphoric acid salt, the metaphosphoric acid salt or the polyphosphoric acid salt is added in an amount of 0.2-2.5% based on total dry weight of the fly ash desilicated liquid and the lime milk, and the polyacrylic acid ester or the polyacrylic acid salt is added in an amount of 0.05-0.5% based on total dry weight of the fly ash desilicated liquid and the lime milk.2. The method according to claim 1 , wherein the polyphosphoric acid salt is sodium diphosphate or sodium tripolyphosphate claim 1 , the metaphosphoric acid salt is sodium metaphosphate claim 1 , the pyrophosphoric acid salt is sodium pyrophosphate claim 1 , and the polyacrylic acid salt is sodium polyacrylate.3. The method according to claim 1 , wherein the particle diameter control agent is one of the pyrophosphoric acid salt claim 1 , the metaphosphoric acid salt and the polyphosphoric acid salt claim 1 ...

COMPOSITIONS AND METHODS FOR PLUGGING HONEYCOMB BODIES WITH REDUCED PLUG DEPTH VARIABILITY

A composition for applying to a honeycomb body includes a refractory filler, an organic binder, an inorganic binder, and a liquid vehicle, wherein the refractory filler, the particle size distribution of the refractory filler, the organic binder, and the inorganic binder are selected such that, when the composition is applied to plug a plurality of channels of the honeycomb body, the plug depth variability is reduced. 1. A composition for applying to a honeycomb body having a plurality of parallel channels , the composition comprising:{'sub': 10', '90, 'a refractory filler having a particle size distribution with a Dof at least 4 microns and a Dof at least 55 microns;'}an organic binder;an inorganic binder; anda liquid vehicle.2. The composition of claim 1 , wherein the average plug depth is less than 7 millimeters.3. The composition of claim 1 , wherein the refractory filler comprises at least one inorganic powder selected from the group consisting of cordierite claim 1 , mullite claim 1 , aluminum titanate claim 1 , silicon carbide claim 1 , silicon nitride claim 1 , calcium aluminate claim 1 , beta-eucryptite claim 1 , and beta-spodumene.4. The composition of claim 1 , wherein the inorganic binder comprises a gelled inorganic binder.5. The composition of claim 1 , wherein the composition sets at a temperature of less than 200° C.6. The composition of claim 4 , wherein the inorganic binder comprises gelled colloidal silica.7. The composition of claim 3 , wherein the inorganic powder has a median particle size (D) of from 25 to 40 microns.8. A method for applying a plugging composition to a honeycomb body having a plurality of parallel channels claim 3 , the method comprising:applying to the honeycomb body, a composition comprising:{'sub': 10', '90, 'a refractory filler having a particle size distribution with a Dof at least 4 microns and a Dof at least 55 microns;'}an organic binder;an inorganic binder; anda liquid vehicle;wherein the refractory filler, the ...

MICROSTRUCTURED CARBONATABLE CALCIUM SILICATE CLINKERS AND METHODS THEREOF

The invention provides novel, microstructured clinker and cement materials that are characterized by superior grindability and reactivity. The disclosed clinker and cement materials are based on carbonatable calcium silicate and can be made from widely available, low cost raw materials via a process suitable for large-scale production. The method of the invention is flexible in equipment and processing requirements and is readily adaptable to manufacturing facilities of conventional Portland cement. 131-. (canceled)32. A non-hydraulic clinker material , comprising particles of uncarbonatable silica (SiO) , having diameters from about 0.1 μm to about 1 ,000 μm , dispersed in a matrix comprising at least one carbonatable calcium silicate phase.33. The clinker material of claim 32 , wherein elemental Ca and elemental Si are present in the clinker at an atomic ratio from about 0.8 to about 1.2.34. The clinker material of claim 32 , further comprising an intermediate layer claim 32 , comprising melilite ((Ca claim 32 ,Na claim 32 ,K)(Al claim 32 ,Mg claim 32 ,Fe)[(Al claim 32 ,Si)SiO]) and/or an amorphous phase and surrounding the particles of uncarbonatable silica.35. The clinker material of claim 34 , wherein the intermediate layer comprises an amorphous phase comprising one or more components selected from AlO claim 34 , FeO claim 34 , MgO claim 34 , KO and NaO.36. The clinker material of claim 32 , wherein the clinker is suitable for carbonation with COat a temperature of about 30° C. to about 90° C. to form CaCO claim 32 , under an atmosphere of water and COhaving a pressure in the range from ambient atmospheric pressure to about 150 psi above ambient and having a COconcentration ranging from about 10% to about 99% for about 1 hour to about 150 hours claim 32 , with a mass gain of about 10% or more.37. The clinker material of claim 36 , wherein the clinker is suitable for carbonation with COat a temperature of about 40° C. to about 80° C. to form CaCO claim 36 , ...

CEMENT ADDITIVES AND RELATED METHODS OF USE

Cement and concrete additives and related methods of making and using such additives are disclosed and described. An additive can include molasses and a carrier. An enhanced Portland cement composition can comprise about 97 wt % to 99.9 wt % of the composition and the above described additive comprises about 0.01 wt % to about 3 wt % of the composition. 1. A method of manufacturing an enhanced Portland cement for use in the preparation of a concrete having enhanced compressive strength , comprising:admixing Portland cement with an additive, wherein the additive comprises molasses and a carrier, and wherein the Portland cement and the additive are present in the enhanced Portland cement at a ratio of Portland cement to additive of about 1:1000 (w/w) to about 1:25 (w/w).2. The method of claim 1 , wherein the Portland cement and the additive are present in the enhanced Portland cement at a ratio of Portland cement to additive of about 0.4:250 (w/w) to about 1:39 (w/w).3. (canceled)4. The method of claim 1 , wherein the carrier includes a member selected from the group consisting of fly ash claim 1 , shale claim 1 , slate claim 1 , limestone claim 1 , basalt claim 1 , rhyolite claim 1 , volcanic ash claim 1 , ash claim 1 , and combinations thereof.5. The method of claim 1 , wherein the carrier comprises water is a liquid.6. The method of claim 5 , wherein the ratio of the amount (wt %) of liquid carrier to the amount (wt %) of molasses is about 1:99 and 99:0.1.7. (canceled)8. The method of claim 5 , wherein the step of admixing occurs during the manufacturing of the Portland cement.9. The method of claim 5 , wherein the admixing occurs following formation of clinker.10. The method of claim 9 , wherein the admixing is accomplished by spraying the additive onto clinker having an elevated temperature.11. (canceled)12. (canceled)13. The method of claim 10 , wherein the elevated temperature is less than about 275° F.14. (canceled)15. The method of claim 1 , wherein the ...

Treatment of tailings streams

A process for the treating a mature fine tailings stream is provided. Treatment comprises contacting an alkali metal silicate or polysilicate microgel and an activator with mature fine tailings, entrapping the sand and clay fines within a polysilicate microgel, spreading the silica microgel over a surface, and allowing the silica microgel to dry, and producing a trafficable surface.

Sealed honeycomb structure

A sealed honeycomb structure may include porous walls dividedly forming inlet cells and outlet cells extending from an end surface of an inlet side to an end surface of an outlet side, inlet and outlet side sealing portion 5 b , and an inlet side sealing portion, wherein at least one outlet cell is a reinforced cell where a reinforcing part 6 for reinforcing the outlet cell 2 b is formed at at least one corner portion 21 a at which the walls on a cross-section vertical to an extending direction of the cell cross each other, wherein the inlet cell is a non-reinforced cell where the reinforcing part is not formed at all the corner portions at which the walls on the cross-section vertical to the extending direction of the cell cross each other, and wherein the reinforcing parts 6 of the reinforced cells 22 are formed at a section of the honeycomb structure from the end surface of the outlet side in the extending direction of the cell.

Porous molded body in the form of an insulating plaster layer or an insulating panel

The invention relates to a porous molded body in the form of an insulating plaster layer or an insulating panel, comprising closed-cell or open-cell or mixed-cell hollow bodies made of inorganic materials and comprising a binder, characterized in that composite particles are contained as the binder, wherein the composite particles contain at least one organic polymer and at least one inorganic solid, wherein the weight percentage of inorganic solid is 15 to 50 wt %, with respect to the total weight of organic polymer and inorganic solid in the composite particle.

FIBER-REINFORCED CONCRETE AND COMPOSITIONS FOR FORMING CONCRETE

Fiber-reinforced compositions for forming concrete are disclosed. A fiber-reinforced dry-cast cementitious composition includes a cementitious component, aggregate, and at least one reinforcing component selected from the group consisting of metal fibers, synthetic fibers, and rubber pieces. A fiber-reinforced non-cementitious composition includes a pozzolanic component, aggregate, and at least one reinforcing component selected from the group consisting of metal fibers, synthetic fibers, and rubber pieces. The composition excludes any cementitious component. Fiber-reinforced concrete structures obtained by hardening the above-described compositions are also disclosed. 1. A dry-cast cementitious composition comprising:a cementitious component;aggregate;at least one reinforcing component selected from the group consisting of metal fibers and rubber pieces; andwater provided in a ratio to the cementitious component of approximately 0.35 or less.2. The cementitious composition of claim 1 , wherein the reinforcing component comprises metal fibers.3. The cementitious composition of claim 2 , wherein metal fibers comprise steel fibers.4. The cementitious composition of claim 2 , wherein the metal fibers have a length of at least 25 mm.5. The cementitious composition of claim 2 , wherein the metal fibers have a ratio of length to diameter of at least 65:1.6. The cementitious composition of claim 2 , wherein the metal fibers are present in an amount of at least five pounds per cubic yard.7. The cementitious composition of claim 1 , wherein the reinforcing component further comprises synthetic fibers.8. The cementitious composition of claim 7 , wherein the synthetic fibers have a tensile strength of at least 50 ksi.9. The cementitious composition of claim 7 , wherein the synthetic fibers have a length of at least 25 mm.10. The cementitious composition of claim 7 , wherein the synthetic fibers have a ratio of length to diameter of at least 45:1.11. The cementitious ...

Honeycomb structure

There is provided a honeycomb structure where a crack at a honeycomb substrate is reduced. A honeycomb structure has a honeycomb substrate that has a porous partition wall defining a plurality of cells extending from an inflow end face as one end face to an outflow end face as another end face and becoming channels for a fluid, and an outer circumference coating layer disposed at an outer circumference of the honeycomb substrate . At 25 to 800° C., a thermal expansion coefficient of the outer circumference coating layer is larger than a thermal expansion coefficient of the honeycomb substrate. The thermal expansion coefficients of the outer circumference coating layer and the thermal expansion coefficient at 25 to 800° C. preferably meet a relationship represented by the expression: 1.1<(the thermal expansion coefficient of the outer circumference coating layer/the thermal expansion coefficient of the honeycomb substrate)<40.

GEOPOLYMER RESIN MATERIALS, GEOPOLYMER MATERIALS, AND MATERIALS PRODUCED THEREBY

A product formed from a first material including a geopolymer resin material, a geopolymer resin, or a combination thereof by contacting the first material with a fluid and removing at least some of the fluid to yield a product. The first material may be formed by heating and/or aging an initial geopolymer resin material to yield the first material before contacting the first material with the fluid. In some cases, contacting the first material with the fluid breaks up or disintegrates the first material (e.g., in response to contact with the fluid and in the absence of external mechanical stress), thereby forming particles having an external dimension in a range between 1 nm and 2 cm. 1. A method comprising:contacting a first material with a fluid, wherein the first material comprises a geopolymer resin material, a geopolymer material, or a combination thereof; andremoving at least some of the fluid to yield a product.2. The method of claim 1 , further comprising heating and/or aging an initial geopolymer resin material to yield the first material before contacting the first material with the fluid claim 1 , wherein the initial geopolymer resin material is different than the first material.3. The method of claim 1 , wherein contacting the first material with the fluid breaks up or disintegrates the first material claim 1 , thereby forming particles.4. The method of claim 3 , wherein the first material breaks up or disintegrates in response to contact with the fluid and in the absence of external mechanical stress.5. The method of claim 3 , wherein the particles have an external dimension between 1 nm and 2 cm.6. The method of claim 1 , wherein the first material comprises one or more organic compounds claim 1 , each having a molecular weight less than 1000 g/mol.7. The method of claim 1 , wherein the first material comprises vegetable oil claim 1 , plant oil claim 1 , animal oil claim 1 , waste vegetable oil claim 1 , waste animal oil claim 1 , fat claim 1 , ...

RAPID SETTING MATERIAL FOR IMPROVED PROCESSING AND PERFORMANCE OF CARBONATING METAL SILICATE CEMENT

Cementitious compositions and methods for producing the cementitious compositions are described herein. The methods can include mixing a compound of the general formula MSiXO, MSiXO(OH), MSiX(OH), or MSiX(OH), (HO), wherein M comprises a metal that can react with carbon dioxide in a carbonation reaction to form a carbonate, Si forms an oxide during the carbonation reaction, X is an element other than M or Si, a, b, d, e, and f are greater than zero, and c is zero or greater, with a rapid setting hydraulic cement to produce a cementitious mixture. The methods can further include hydrating the cementitious mixture and carbonating the cementitious mixture. Carbonating the cementitious mixture can occur simultaneously with hydrating the cementitious mixture or subsequent to hydrating the cementitious mixture. In some embodiments, the non-hydraulic cement can comprise wollastonite. The hydraulic cement can be in an amount of from 5 wt % to 80 wt % of the cementitious composition. 120-. (canceled)21. A cementitious composition comprising:{'sub': a', 'b', 'c', 'd', 'a', 'b', 'c', 'd', 'e', 'a', 'b', 'c', 'e', 'a', 'b', 'c', 'e', '2', 'f, 'a non-hydraulic cement comprising a compound of the general formula MSiXO, MSiXO(OH), MSiX(OH), MSiX(OH)(HO), or mixtures thereof, wherein M is an alkaline earth metal selected from the group consisting of calcium, magnesium, and sodium; X is an element other than M or Si; a, b, d, e, and f are greater than zero, and c is zero or greater; and'}a rapid setting hydraulic cement selected from the group consisting of calcium aluminate cement, calcium phosphate cement, calcium sulfate hydrate cement, calcium aluminate sulfonate cement, magnesium oxychloride cement, magnesium oxysulfate cement, magnesium phosphate cement, and combinations thereof.22. The cementitious composition of claim 21 , wherein the compound is from the wollastonite group.23. The cementitious composition of claim 21 , wherein the non-hydraulic cement includes wollastonite. ...

GRANITE-LIKE COMPOSITE MATERIALS AND METHODS OF PREPARATION THEREOF

The invention provides novel granite-like composite materials and methods for preparation thereof. The granite-like composite materials can be readily produced from widely available, low cost precursor materials by a process suitable for large-scale production. The precursor materials include calcium silicate, for example, wollastonite, and particulate filler materials which comprise silicon dioxide-rich materials such as quartz, mica, feldspar, sand and glass. Additives can include calcium carbonate-rich and magnesium carbonate-rich materials. Various additives can be used to fine-tune the physical appearance and mechanical properties of the composite material, such as colorants such as particles of colored materials, such as colored glass, colored sand, and colored quartz particles, and pigments (e.g., black iron oxide, cobalt oxide and chromium oxide). These granite-like composite materials exhibit visual patterns unique to granite as well as display compressive strength, flexural strength and water absorption similar to that of granite. 2. The composite material of claim 1 , further comprising a colorant.3. The composite material of claim 2 , wherein the colorant is a pigment comprising a metal oxide.4. The composite material of claim 2 , wherein the colorant is a glass material having a color selected from black claim 2 , white claim 2 , blue claim 2 , gray claim 2 , pink claim 2 , green claim 2 , red claim 2 , yellow and brown.5. The composite material of claim 1 , whereinthe plurality of bonding elements have a median particle size in the range from about 5 μm to about 100 μm.6. The composite material of claim 1 , wherein the coarse filler particles are made from a silicon dioxide-rich material.7. The composite material of claim 1 , wherein the plurality of bonding elements are chemically transformed from ground wollastonite.8. The composite material of claim 1 , wherein the weight ratio of bonding elements:filler particles is about 15-50:50-85.9. The ...

Porous body, honeycomb filter, method for producing porous body, and method for producing honeycomb filter

A porous body constituting a porous partition wall 44 of a honeycomb filter 30 has a porosity P of 20% to 60%, a permeability k of 1 μm 2 or more and satisfies k≧0.2823 P−10.404. The porous body is obtained by a method for producing, for example, includes (a) a step of acquiring porous body data representing a temporary porous body having porosity higher than target porosity, (b) a step of deriving information about a flow rate for each space voxel during passage of a fluid through inside of the porous body, (c) a step of preferentially replacing the voxel having a low flow rate among the space voxels with the object voxel, and adjusting the porosity of the porous body data to the target porosity, and (d) a step of forming a porous body based on the porous body data after replacement.

TREATMENT OF TAILING STREAMS

This disclosure relates to a process for treating a tailings stream comprising water, solids, and optionally polyacrylamide. The process involves (a) contacting the tailings stream with a silicate source for a pre-determined period of time to form a mixture; b) after the pre-determined period of time, contacting the mixture with an activator to initiate gel formation, wherein the gel entraps the solids within the gel; and c) allowing the gel to strengthen and solidify; wherein the gel formation is delayed compared with a non-delayed process. 1. A process for treating a tailings stream comprising water , solids , and optionally polyacrylamide , comprising: (a) contacting the tailings stream with a silicate source for a pre-determined period of time to form a mixture; b) after the pre-determined period of time , contacting the mixture with an activator to initiate gel formation , wherein the gel entraps the solids within the gel; and c) allowing the gel to strengthen and solidify; wherein the gel formation is delayed compared with a non-delayed process.2. A process according to claim 1 , wherein the pre-determined period of time is at least 2 minutes.3. A process according to claim 1 , wherein the pre-determined period of time is at least 5 minutes.4. A process according to claim 1 , wherein the pre-determined period of time is at least 10 minutes.5. A process according to claim 1 , wherein the pre-determined period of time is at least 15 minutes.6. A process according to claim 1 , wherein the silicate source comprises an alkali metal silicate; a polysilicate microgel; a deionized silicate solution having a molar ratio of Si:M of at least 2.6 claim 1 , wherein M is an alkali metal; colloidal silica; or combinations thereof.7. A process according to claim 1 , wherein the activator is selected from the group consisting of acids claim 1 , alkaline earth metal salts claim 1 , aluminum salts claim 1 , organic esters claim 1 , dialdehydes claim 1 , organic carbonates claim ...

COMPOSITE MATERIALS AND BONDING ELEMENTS FROM CARBONATION OF CALCIUM SILICATE AND METHODS THEREOF

The invention provides composite materials comprising novel bonding elements exhibiting unique microstructures and chemical compositions, and methods for their manufacture and uses, for example, in a variety of concrete components with or without aggregates in the infrastructure, construction, pavement and landscaping industries. 2. The composite material of claim 1 , wherein the uncarbonatable phase is selected from silica and melilite.3. The composite material of claim 1 , wherein the calcium silicate phase is selected from wollastonite claim 1 , pseudowollastonite claim 1 , rankinite claim 1 , belite claim 1 , and carbonatable amorphous calcium silicates claim 1 , or a combination of two or more thereof.4. The composite material of claim 1 , wherein one or more bonding elements comprise one or more voids.5. The composite material of claim 4 , wherein the one or more voids are present in the single-phase or multi-phase core.6. The composite material of claim 4 , wherein the one or more voids are present in the encasing CaCO.7. The composite material of claim 1 , further comprising one or more voids spatially disposed between bonding elements.8. The composite material of claim 1 , wherein the silica rich rim has a thickness ranging from about 0.01 μm to about 50 μm.9. (canceled)10. The composite material of claim 1 , wherein the silica rich rim is characterized by a silica content ranging from about 50% to about 90% by volume and a CaCOcontent ranging from about 10% to about 50% by volume.1116-. (canceled)17. The composite material of claim 1 , wherein the silica rich rim of varying thickness surrounds the core with a coverage of greater than about 90%.18. The composite material of claim 1 , further comprising one or more filler materials.19. The composite material of claim 18 , wherein the one or more filler materials are uniformly distributed in the bonding matrix.20. The composite material of claim 1 , further comprising one or more supplementary materials ...

High Capacity Structures and Monoliths Via Paste Imprinting

The disclosure relate generally to structures, forms, and monoliths, and methods of preparing the same. This disclosure can produce uniform structured passageways or channels of active material, including adsorbent or catalyst, by imprinting or molding features into a paste on a support that can be subsequently assembled into a gas or liquid treating structure, i.e. a monolith. The paste, which can include an active material, binder, and other potential additives, can be applied to the support or pushed through a support (as in a mesh) as a thin film. The paste can be imprinted, stamped, shaped or otherwise handled to give features of desired height, shape, width, and positioning. When stacked or rolled, the features of one layer contact a subsequent layer, which seal to form passageways. The resulting structure can have high cell-density (>1000 cells per square inch) and a large volume fraction of active material. 1. A method for preparing a structure , the method comprising;coating, on a support having a first side and a second side, a paste to the first side;creating features in the paste;layering a first coated support with a second coated support by contacting the paste on the first side of the first coated support with a side of the second coated support to form enclosed passageways; andcalcining the layered supports to form the structure.2. The method of claim 1 , wherein the paste comprises an active material.3. The method of claim 2 , wherein the paste further comprises a binder.4. The method of claim 1 , wherein the side of the second coated support is a second side of the second coated support which coated with a thin layer of paste claim 1 , and the enclosed passageways are formed by the contact of the paste with features of the first coated support to the thin layer of paste on the second side of the second coated support.5. The method of claim 1 , wherein the features are created by imprinting claim 1 , stamping claim 1 , molding claim 1 , dragging ...

CEMENT CHEMISTRIES

A method of curing a low Ca/Mg cement composition is described that includes providing a predetermined quantity of the low Ca/Mg cement composition in uncured form; and reacting the uncured low Ca/Mg cement composition with a reagent chemical for a time sufficient to cure said cementitious material, wherein said reagent chemical is a compound synthesized from COand comprises dicarboxylic acids, tricarboxylic acids, or alpha-hydroxycarboxylic acids. 1. A method of curing a low Ca/Mg cement composition , comprising the steps of:providing a predetermined quantity of the low Ca/Mg cement composition in uncured form; andreacting the uncured low Ca/Mg cement composition with a reagent chemical for a time sufficient to cure said cementitious material, wherein said reagent chemical is a compound comprises one or more of: dicarboxylic acids, tricarboxylic acids, alpha-hydroxycarboxylic acids, salts of dicarboxylic acids, salts of tricarboxylic acids, or salts of alpha-hydroxycarboxylic acids.2. The method of curing a cementitious material of claim 1 , wherein said reagent chemical is citric acid or a salt of citric acid.3. The method of curing a cementitious material of claim 1 , wherein said reagent chemical is water soluble.4. The method of curing a cementitious material of claim 1 , wherein said reagent chemical has a solubility in water of 20 g/L or more.5. The method of curing a cementitious material of claim 1 , further comprising controlling the reaction between the cementitious material and the reagent chemical by one or more of:the use of additives,by controlling the reactivity of the cementitious material by controlling its crystallinity,by control of a particle size of particles in the cementitious material,by control of the surface area of the particles in the cementitious material, orby control of the composition of the cementitious material.6. The method of claim 1 , wherein the low Ca/Mg cement composition is based on wollastonite claim 1 , melilite claim 1 , ...

PERVIOUS COMPOSITE MATERIALS, METHODS OF PRODUCTION AND USES THEREOF

The invention provides novel pervious composite materials that possess excellent physical and performance characteristics of conventional pervious concretes, and methods of production and uses thereof. These composite materials can be readily produced from widely available, low cost raw materials by a process suitable for large-scale production with improved energy consumption, desirable carbon footprint and minimal environmental impact. 1. A pervious composite material comprising: a core comprising primarily calcium silicate,', 'a silica-rich first or inner layer, and', 'a calcium carbonate-rich second or outer layer;, 'a plurality of bonding elements, wherein each bonding element comprisesa plurality of aggregates having sizes of about 0.25 mm to about 25 mm; anda plurality of pores having sizes from about 0.1 mm to about 10 mm, the plurality of bonding elements and the plurality of aggregates together form one or more bonding matrices and the bonding elements and aggregates are substantially evenly dispersed therein and bonded together; and', 'the plurality of pores account for from about 5 vol. % to about 40 vol. % of the pervious composite material and form interconnected channels allowing the composite material to be permeable; and,, 'wherein'} {'sup': 3', '3, 'the pervious composite material exhibits a density from about 1,500 kg/mto 2,200 kg/m, a compressive strength from about 3.0 MPa to about 30 MPa, a flexural strength from about 1.0 MPa to about 4.0 MPa, and a permeability from about 100 cm/hr to about 8,000 cm/hr.'}, 'whereby'}2. The pervious composite material of claim 1 , wherein the plurality of bonding elements have a median particle size in the range from about 5 μm to about 100 μm.3. The pervious composite material of claim 1 , wherein the aggregates comprise two or more groups of particle aggregates of different sizes.4. The pervious composite material of claim 3 , wherein the aggregates comprise a first group of particle aggregates of a size ...

MONOLITHIC COMPOSITION

A paste-like unshaped composition including inorganic fibers that have the following composition ratio and are not coated with a coating layer; an inorganic binder; and a solvent, wherein the composition further optionally comprises inorganic powder, the ratio of the inorganic fibers and the inorganic powder is 100:0 to 10:90, the composition comprises no pH adjuster and no organic fibers, and when the inorganic powder is contained, the inorganic powder does not contain a needle-like crystal structure, [Composition ratio of inorganic fibers] SiO66 to 82 wt %; CaO 10 to 34 wt %; MgO 3 wt % or less; AlO5 wt % or less; and the total of SiO, CaO, MgO and AlOis 98 wt % or more. 2. The unshaped composition according to that comprises the inorganic powder.3. The unshaped composition according to claim 2 , wherein the inorganic powder has a melting point of 1500° C. or more in an air atmosphere.4. The unshaped composition according to claim 2 , wherein the inorganic powder comprises one or two or more selected from silica claim 2 , alumina claim 2 , mullite claim 2 , zircon claim 2 , zirconia claim 2 , titania claim 2 , clay minerals claim 2 , calcia and magnesia.5. The unshaped composition according to claim 1 , wherein the inorganic binder comprises a colloid.6. The unshaped composition according to claim 5 , wherein the colloid is colloidal silica.7. The unshaped composition according to claim 6 , wherein the colloidal silica has a pH of 9 to 11.8. The unshaped composition according to claim 1 , wherein the inorganic binder comprises one or two or more selected from colloidal silica claim 1 , alumina sol claim 1 , zirconia sol claim 1 , titania sol and an aqueous aluminum phosphate solution.9. The unshaped composition according to claim 1 , wherein the inorganic binder is contained in an amount of 1 to 30 parts by weight in terms of solid content when the total of the inorganic fibers and the inorganic powder is taken as 100 parts by weight.10. The unshaped composition ...

Loss Circulation Material Composition Having Alkaline Nanoparticle Based Dispersion and Water Insoluble Hydrolysable Polyester

A lost circulation material (LCM) is provided having an alkaline nanosilica dispersion and a polyester activator. The alkaline nanosilica dispersion and the polyester activator may form a gelled solid after interaction over a contact period. Methods of lost circulation control using the LCM are also provided. 1. A lost circulation material (LCM) composition , comprising:an alkaline nanosilica dispersion; anda water insoluble polyester, the water insoluble polyester selected to form a gelled solid with the alkaline nanosilica dispersion after a period.2. The LCM composition of claim 1 , wherein the period comprises a range of 0.5 hours to 24 hours.3. The LCM composition of claim 1 , wherein the water insoluble polyester comprises at least one of a polylactide claim 1 , a polyhydroxyalkanoate claim 1 , polyglycolide claim 1 , polylactoglycolide claim 1 , and polycaprolactone.4. The LCM composition of claim 1 , wherein the water insoluble polyester comprises an amount in the range of 0.1 percent by volume of the total volume (v/v %) to 10 v/v %.5. A solid gelled material useful for mitigating lost circulation claim 1 , where the solid gelled material forms by introducing an alkaline nanosilica dispersion and a water insoluble polyester to a lost circulation zone claim 1 , the nanosilica dispersion comprising amorphous silicon dioxide and water claim 1 , such that the nanosilica dispersion and the water insoluble polyester contact the lost circulation zone for a period such that the solid gelled material forms.6. The solid gelled material of claim 5 , wherein the water insoluble polyester comprises at least one of a polylactide claim 5 , a polyhydroxyalkanoate claim 5 , polyglycolide claim 5 , polylactoglycolide claim 5 , and polycaprolactone.7. The solid gelled material of claim 5 , wherein the water insoluble polyester comprises an amount in the range of 0.1 percent by volume of the total volume (v/v %) to 10 v/v %.8. The solid gelled material of claim 5 , wherein the ...

System and methods of plugging ceramic honeycomb bodies

A system and method to dry plug cement in a ceramic honeycomb body during the manufacture of plugged ceramic honeycomb bodies. The system includes a heating element ( 520 ) configured to immediately heat without contact a face ( 502 ) of a ceramic honeycomb body ( 500 ) plugged with a wet plug cement ( 510 ) to rapidly dry and stiffen the plug cement ( 510 ) on the face ( 502 ) of the ceramic honeycomb body ( 500 ). The method includes immediately applying heat without contact to a face ( 502 ) of a ceramic honeycomb body ( 500 ) having wet plug cement ( 510 ) disposed in channels ( 508 ) of the ceramic honeycomb body at the face, and rapidly drying and stiffening the plug cement on the face of the ceramic honeycomb body.

CHEMICAL PLUGS FOR PREVENTING WELLBORE TREATMENT FLUID LOSSES

A lost-circulation material including a mixture of an aqueous colloidal dispersion and fatty acid. The aqueous colloidal dispersion includes silica nanoparticles and has a pH of at least 8. Combining the colloidal dispersion and the fatty acid initiates gelation of the lost-circulation material when the pH of the lost-circulation material is less than 8 and a temperature of the lost-circulation material is in a range of 5° C. to 300° C. Sealing an opening in a portion of a wellbore or a portion of a subterranean formation in which the wellbore is formed may include providing the aqueous colloidal dispersion and the fatty acid to the wellbore, mixing the colloidal dispersion and the fatty acid to yield the lost-circulation material, initiating gelation of the lost-circulation material, and solidifying the lost-circulation material in the wellbore to yield a set gel. 116-. (canceled)18. The method of claim 17 , further comprising providing the colloidal dispersion and the fatty acid to the wellbore at the same time.19. The method of claim 17 , further comprising combining the colloidal dispersion and the fatty acid to yield the lost-circulation material before providing the colloidal dispersion and the fatty acid to the wellbore.20. The method of claim 17 , further comprising accelerating the gelation of the lost-circulation material in the wellbore by increasing a temperature of the lost-circulation material in the wellbore claim 17 , decreasing a pH of the lost-circulation material in the wellbore claim 17 , or increasing a concentration of the fatty acid in the lost-circulation material. This document relates to methods and compositions for controlling and preventing loss of wellbore treatment fluid in a wellbore.Wellbore treatment fluid used in drilling, completion, or servicing of a wellbore can be lost to the subterranean formation during circulation of the fluid in the wellbore. Partial or complete loss of a wellbore treatment fluid from a wellbore may occur ...

Chemical plugs for preventing wellbore treatment fluid losses

A lost-circulation material including a mixture of an aqueous colloidal dispersion and fatty acid. The aqueous colloidal dispersion includes silica nanoparticles and has a pH of at least 8. Combining the colloidal dispersion and the fatty acid initiates gelation of the lost-circulation material when the pH of the lost-circulation material is less than 8 and a temperature of the lost-circulation material is in a range of 5° C. to 300° C. Sealing an opening in a portion of a wellbore or a portion of a subterranean formation in which the wellbore is formed may include providing the aqueous colloidal dispersion and the fatty acid to the wellbore, mixing the colloidal dispersion and the fatty acid to yield the lost-circulation material, initiating gelation of the lost-circulation material, and solidifying the lost-circulation material in the wellbore to yield a set gel.

RAPID SETTING MATERIAL FOR IMPROVED PROCESSING AND PERFORMANCE OF CARBONATING METAL SILICATE CEMENT

Cementitious compositions and methods for producing the cementitious compositions are described herein. The methods can include mixing a compound of the general formula MSiXO, MSiXO(OH), MSiX(OH), or MSiX(OH).(HO), wherein M comprises a metal that can react with carbon dioxide in a carbonation reaction to form a carbonate, Si forms an oxide during the carbonation reaction, X is an element other than M or Si, a, b, d, e, and f are greater than zero, and c is zero or greater, with a rapid setting hydraulic cement to produce a cementitious mixture. The methods can further include hydrating the cementitious mixture and carbonating the cementitious mixture. Carbonating the cementitious mixture can occur simultaneously with hydrating the cementitious mixture or subsequent to hydrating the cementitious mixture. In some embodiments, the non-hydraulic cement can comprise wollastonite. The hydraulic cement can be in an amount of from 5 wt % to 80 wt % of the cementitious composition. 1. A method for producing a cementitious composition comprising: [{'sub': a', 'b', 'c', 'd', 'a', 'b', 'c', 'd', 'e', 'a', 'b', 'c', 'e', 'a', 'b', 'c', 'e', '2', 'f, 'a compound of the general formula MSiXO, MSiXO(OH), MSiX(OH), or MSiX(OH).(HO), wherein M comprises a metal that can react with carbon dioxide in a carbonation reaction to form a carbonate, Si forms an oxide during the carbonation reaction, X is an element other than M or Si, a, b, d, e, and f are greater than zero, and c is zero or greater with'}, 'a rapid setting hydraulic cement to produce a cementitious mixture;, '(i) mixing'}(ii) hydrating the cementitious mixture; and(iii) carbonating the cementitious mixture.2. The method of claim 1 , wherein M includes an alkaline earth metal selected from the group consisting of calcium claim 1 , magnesium claim 1 , sodium claim 1 , or a combination thereof.3. The method of claim 1 , wherein the compound of general formula MSiXOincludes wollastonite.4. The method of claim 1 , wherein the ...

Composition and method for water and gas shut-off in subterranean formations

A composition useful for subterranean water or gas shut off applications includes organosilane-modified colloidal silica and an accelerator. The accelerator includes one or more organic or inorganic salts. A method of using a composition, including an organosilane-modified colloidal silica and an accelerator, includes forming a fluid system that is flowed to a formation in a subterranean zone, such as through a wellbore, where the composition forms a gel to plug the formation and shut off water flow into the wellbore.

INSULATING, REFRACTORY MOLDED BODY, ESPECIALLY PLATE, AND PROCESS FOR ITS MANUFACTURE AND ITS USAGE

An unfired, refractory molded body (), especially a plate, especially for thermal insulation of molten metal and/or an ingot solidifying from molten metal, that includes a binding agent matrix () of a set binder and aggregate grains () of biogenic silicic acid, preferably of rice husk ash, which are incorporated into the binding agent matrix (), wherein the binding agent matrix () consists of silica gel, as well as a process for its production and its usage. 11142322. An unfired , refractory molded body () , especially plate , especially for thermal insulation of molten metal and/or an ingot () solidifying from molten metal , comprising a binding agent matrix () of a set binding agent and aggregate grains () of biogenic silicic acid , preferably of rice husk ash , which are incorporated into the binding agent matrix () , characterized in that the binding agent matrix () is comprised of silica gel.21. The molded body () according to claim 1 , characterized in that the biogenic silicic acid is rice husk ash and/or diatomaceous earth and/or silica shale and/or diagenetically fossilized radiolaria skeletons or opal sponges.311. The molded body () according to claim 1 , characterized in that the aggregate of the molded body () is comprised of at least 50 wt. % claim 1 , preferably of at least 80 wt. % claim 1 , more preferably of at least 90 wt. % claim 1 , especially preferably 100 wt. % of biogenic silicic acid claim 1 , preferably of rice husk ash claim 1 , with respect to the total dry mass of aggregate materials.4. (canceled)511. The molded body () according to claim 1 , characterized in that the molded body () has a dry apparent density ρfrom 0.3 to 1.5 g/cm claim 1 , more preferably from 0.5 to 1.3 g/cmaccording to DIN EN 1094-4 (09/1995).611. The molded body () according to claim 1 , characterized in that the molded body () has a porosity of 60 to 90% claim 1 , preferably from 70 to 80% according to DIN EN 1094-4 (09/1995).711. The molded body () according to ...

ADDITIVE FORMULATION FOR REDUCTION OR PREVENTION OF MICROBIALLY INDUCED CORROSION IN CONCRETE OR CEMENTITIOUS MATERIAL

An additive formulation for reduction or prevention of microbially induced corrosion in concrete, cementitious material (such as mortar or grout), or a combination thereof. The additive formulation comprises a Quat Silane and a fungicide, wherein the ratio of the Quat Silane to the fungicide in the formulation is in a range of about 10:1 to about 1:10, preferably in a range of about 5:1 to about 1:5. 2. The additive formulation according to claim 1 , wherein the Quat Silane is non-aqueous.3. The additive formulation according to claim 1 , wherein the ratio of the Quat Silane to the fungicide in the formulation is in a range of about 5:1 to about 1:5.4. The additive formulation according to claim 1 , further comprising a defoamer.5. The additive formulation according to claim 4 , wherein the defoamer is selected from the group consisting of polyether amine claim 4 , ethoxylated alcohol claim 4 , silicone-based defoamer claim 4 , tributyl phosphate claim 4 , and a combination thereof.6. The additive formulation according to claim 1 , wherein the defoamer is from about 2 weight % to about 25 weight % of the amount of the Quat Silane in the formulation.7. The additive formulation according to claim 1 , wherein the fungicide is selected from the group consisting of Sodium OrthophenylPhenol claim 1 , Imazalil Sulphate claim 1 , diiodomethyl-p-tolylsulfone claim 1 , carbamate claim 1 , isothiazolinone claim 1 , azole claim 1 , chlorothalonil claim 1 , zinc pyrithione claim 1 , copper pyrithione claim 1 , sodium pyrithione claim 1 , and a combination thereof.8. The additive formulation according to claim 7 , wherein the carbamate is selected from the group consisting of Iodopropynyl butylcarbamate (IPBC) claim 7 , carbendazim claim 7 , and a combination thereof.9. The additive formulation according to claim 7 , wherein the isothiazolinone is selected from the group consisting of OIT (2-Octyl-2H-isothiazol-3-one) claim 7 , DCOIT (4 claim 7 ,5-Dichloro-2-octyl-4-isothiazolin- ...

Accelerating Agents For Resin Cement Composite Systems For Oil Well Cementing

A method of cementing may comprise: providing a bulk dry cement, wherein the bulk dry cement comprises a dry blend of cement and a solid resin accelerator, wherein the solid resin accelerator comprises a liquid resin accelerator on a solid particle; preparing a cement slurry comprising: the bulk dry cement; water; and a liquid hardenable resin component; and introducing the cement slurry into a wellbore. 1. A method of cementing comprising:providing a bulk dry cement, wherein the bulk dry cement comprises a dry blend of cement and a solid resin accelerator, wherein the solid resin accelerator comprises a liquid resin accelerator on a solid particle; the bulk dry cement;', 'water; and', 'a liquid hardenable resin component; and, 'preparing a cement slurry comprisingintroducing the cement slurry into a wellbore.2. The method of wherein the cement comprises at least one cement selected from the group consisting of Portland cement claim 1 , pozzolan cement claim 1 , gypsum cement claim 1 , high alumina content cement claim 1 , slag cement claim 1 , high magnesia content cement claim 1 , shale cement claim 1 , acid/base cement claim 1 , fly ash cement claim 1 , zeolite cement claim 1 , kiln dust cement system claim 1 , microfine cement claim 1 , metakaolin cement claim 1 , pumice/lime cement claim 1 , and combinations thereof.3. The method of wherein the liquid hardenable resin component comprises at least one liquid resin selected from the group consisting of epoxy-based resins claim 1 , novolak resins claim 1 , polyepoxide resins claim 1 , phenol-aldehyde resins claim 1 , urea-aldehyde resins claim 1 , urethane resins claim 1 , phenolic resins claim 1 , furan resins claim 1 , furan and furfuryl alcohol resins claim 1 , phenolic/latex resins claim 1 , phenol formaldehyde resins claim 1 , bisphenol A diglycidyl ether resins claim 1 , butoxymethyl butyl glycidyl ether resins claim 1 , bisphenol A-epichlorohydrin resins claim 1 , bisphenol F resins claim 1 , diglycidyl ...

CEMENT-BASED CEMENTITIOUS MATERIAL AND ITS FORMATION METHOD

A method for forming cement-based cementitious material includes: pouring a cement paste into a mold; applying an electrical current to the cement paste to perform an electro-osmotic reaction; and transferring the reacted cement paste into a water tank for curing, thereby obtaining a functionally graded cement-based cementitious material. A pair of electrodes is placed in the mold and connected to an external power source. The compressive strength of the functionally graded cement-based cementitious material in the middle is lower than that at either of both ends. 1. A method for forming cement-based cementitious material , comprising:pouring a cement paste into a mold, wherein a pair of electrodes is disposed in the mold, and the pair of electrodes is connected to an external power source;applying an electrical current to the cement paste to perform an electro-osmotic reaction; andtransferring the reacted cement paste into a water tank for curing, thereby obtaining a functionally graded cement-based cementitious material.2. The method as claimed in claim 1 , wherein a water-to-cement ratio of the cement paste is between 0.6 and 0.8.3. The method as claimed in claim 1 , wherein the cement paste further comprises an aggregate or a pozzolanic material.4. The method as claimed in claim 3 , wherein a size of the aggregate is between 150 μm and 75 mm.5. The method as claimed in claim 1 , wherein the application of the electrical current to the cement paste is performed immediately after pouring the cement paste into the mold.6. The method as claimed in claim 1 , wherein the application of the electrical current to the cement paste is performed after pouring the cement paste into the mold and resting for 1 minute or more.7. The method as claimed in claim 1 , wherein the pair of the electrodes is metal claim 1 , non-metal claim 1 , or metal alloy.8. The method as claimed in claim 7 , wherein the metal comprises titanium (Ti) claim 7 , or platinum (Pt).9. The method as ...

Loss Circulation Material Composition Having Alkaline Nanoparticle Based Dispersion and Water Soluble Hydrolysable Ester

A lost circulation material (LCM) is provided having an alkaline nanosilica dispersion and an ester activator. The alkaline nanosilica dispersion and the ester activator may form a gelled solid after interaction over a contact period. Methods of lost circulation control using the LCM are also provided. 1. A lost circulation material (LCM) composition , comprising:an alkaline nanosilica dispersion; anda water soluble ester, the water soluble ester selected to form a gelled solid with the alkaline nanosilica dispersion after a period.2. The LCM of claim 1 , wherein the period comprises a range of 0.5 hours to 24 hours.3. The LCM of claim 1 , wherein the water soluble ester comprises an amount in the range of 0.1 percent by volume of the total volume (v/v %) to 10 v/v %.4. The LCM of claim 1 , wherein the water soluble ester comprises at least one of ethyl acetate claim 1 , ethyl formate claim 1 , ethylene glycol diacetate claim 1 , diethylene glycol dilactate claim 1 , and ethylene glycol diformate.5. A solid gelled material useful for mitigating lost circulation claim 1 , where the solid gelled material forms by introducing an alkaline nanosilica dispersion and a water soluble ester to a lost circulation zone claim 1 , the nanosilica dispersion comprising amorphous silicon dioxide and water claim 1 , such that the nanosilica dispersion and the water soluble ester contact the lost circulation zone for a period such that the solid gelled material forms.6. The solid gelled material of claim 5 , wherein the ester comprises at least one of ethyl acetate claim 5 , ethyl formate claim 5 , ethylene glycol diacetate claim 5 , diethylene glycol dilactate claim 5 , and ethylene glycol diformate.7. The solid gelled material of claim 5 , wherein the water soluble ester comprises an amount in the range of 0.1 percent by volume of the total volume (v/v %) to 10 v/v %.8. The solid gelled material of claim 5 , wherein the water soluble ester is introduced separately from the alkaline ...

Fire Protection Boards And Structures Protected By Such Boards

A self supporting board for use in fire protection, at least part of the board being formed from material comprising in wt %: inorganic fibres 35 to 70% silica 30 to 65% 5 binder 0 to 10%. 2. A self supporting board for use in fire protection according to claim 1 , wherein the silica is amorphous silica.3. A self supporting board for use in fire protection according to claim 1 , wherein the inorganic fibre is low biopersistence inorganic fibres.7. A self-supporting board for use in fire protection as claimed in claim 2 , in which the amorphous silica is or comprises fused silica.8. A self-supporting board for use in fire protection as claimed in in which the low biopersistence inorganic fibres comprise alkaline earth silicate fibres.9. A self-supporting board for use in fire protection as claimed in claim 8 , in which the alkaline earth silicate fibres have an arithmetic mean diameter <2 μm.10. A self-supporting board for use in fire protection as claimed in claim 8 , in which the alkaline earth silicate fibre has a composition comprising >70 wt % SiO.11. A self-supporting board for use in fire protection as claimed claim 8 , in which the alkaline earth silicate fibre has a composition comprising>20 wt % CaO{'sub': '2', 'with CaO+SiO>90 wt %, >95 wt % or >98 wt %.'}12. A self-supporting board for use in fire protection as claimed in claim 1 , having a density between 400 and 600 kg·m.13. A self-supporting board for use in fire protection as claimed in claims 1 , in which the binder comprises an inorganic binder claims 1 , optionally in combination with an organic binder.14. A self-supporting board for use in fire protection as claimed in claim 1 , in which the amount of binder is in the range 0.5-5% by weight of the material.15. A self-supporting board for use in fire protection as claimed in any of claim 1 , in which the amount of any organic binder present is less than 3% by weight of the material.16. A self-supporting board for use in fire protection as claimed ...

RENEWABLE ADMIXTURES FOR CEMENTITIOUS COMPOSITIONS

Cementitious compositions comprising a hydraulic cementitious material, a compound selected from the group consisting of a polyhydroxy aromatic compound, a polycarboxylic acid-containing compound or a salt thereof, ascorbic acid or a salt thereof, or a combination thereof, and a particulate material or a water soluble silicate-containing material that interacts with the compound are described herein. The polyhydroxy aromatic compound can be a water soluble compound having from two to thirty hydroxyl groups. The particulate material can exhibit a particle size distribution, wherein at least about 90% by weight of the particles have a diameter of less than 2 mm. Suitable particulate materials include nanoparticles and microparticles. The cementitious compositions can be used to form building materials. The cementitious compositions are especially suited for inhibiting corrosion of reinforcing steel bars embedded in concrete mixtures. Methods of making and using the cementitious composition are also disclosed. 1. A composition , comprising:a hydraulic cementitious material;a hydroxyl containing compound selected from the group consisting of a polyhydroxy aromatic compound, a polycarboxylic acid-containing compound or a salt thereof, ascorbic acid or a salt thereof, and a combination thereof, wherein the hydroxyl containing compound is present in an amount of from 0.1% to 3% by weight, based on the total weight of the cementitious material, anda particulate material and/or a water soluble silicate-containing material that interacts with the hydroxyl containing compound.2. The composition of claim 1 , wherein the hydraulic cementitious material is selected from the group consisting of ordinary Portland cement claim 1 , calcium aluminate cement claim 1 , calcium phosphate cement claim 1 , calcium sulfate hydrate claim 1 , calcium aluminate sulfonate cement claim 1 , magnesium oxychloride cement claim 1 , magnesium oxysulfate cement claim 1 , magnesium phosphate cement ...

Volcanic Material and method for producing the same

The present disclosure is directed to a system and method for manufacturing building materials made of volcanic material. In particular, the present disclosure is directed to the gathering of molten volcanic material, cooling the volcanic material, and shaping the volcanic material into shapes that may be used in construction. 1. A method of manufacturing building materials , the method comprising:collecting molten volcanic material;directing the molten volcanic material into a mold;conveying the mold into a body of water;allowing the molten volcanic material within the mold to be cooled by the body of water to produce solid volcanic material; andremoving the solid volcanic material from the mold.2. The method of claim 1 , wherein collecting the volcanic material includes:scooping the molten volcanic material from a flow of molten volcanic material.3. The method of claim 1 , wherein the molten volcanic material is collected by catching the molten volcanic material after the molten volcanic material flows off an edge of land.4. The method of claim 1 , wherein directing the molten volcanic material into a mold includes situating the mold beneath the molten volcanic material and catching the molten volcanic material in the mold.5. The method of claim 1 , conveying the mold into the body of water includes moving the mold along a conveyor belt.6. The method of claim 5 , wherein a weight of the molten volcanic material is used to move the mold along the conveyor belt.7. A system for manufacturing building materials claim 5 , the system comprising:an output being configured to allow the molten volcanic material to flow into one or more molds;one or more molds configured to receive the molten volcanic material from the output; anda conveyor coupled to the one or more molds and configured to convey the one or more molds into a body of water to be cooled.8. The system of claim 7 , further comprising:a crane configured to use a bucket to scoop the molten volcanic material from ...

陶瓷多孔体的制造方法

本发明的陶瓷多孔体制造方法是将作为骨料粒子的陶瓷粒子与玻璃料和二氧化硅粒子进行混合，成形为规定形状，使得到的成形体干燥后，进行烧成。根据本发明的陶瓷多孔体的制造方法，能够制造对酸和碱具有优越的耐腐蚀性的陶瓷多孔体，且制造时不易产生变形和裂纹等的缺陷。

Inorganic coating composition

An inorganic coating composition which is incombustible, water resistant and durable comprises an aqueous dispersion of colloidal silica (A), laminar aluminum oxide and/or a luminum hydroxide (B), water-soluble amino-alcohol (C), and one or more members selected from the group consisting of metallic zinc, zinc compounds and oxides and hydroxides of alkaline earth metals (D). The molar ratios of said component (C) to component (A) and said component (D) to component (A) are in the range of 0.01/1.0 to 1.0/1.0 and the weight ratio of said colloidal silica to colloidal silica plus water in said coating composition is not less than 0.1.

Application of high toughness, low viscosity nano-molecular resin for reinforcing pothole patching materials in asphalt and concrete base pavement

Described herein are methods of improving the durability of concrete by the infusion of the concrete with a low-viscosity oligomeric solution, and subsequent curing of the oligomeric solution to form a high toughness polymer. Also described herein are compositions containing concrete and high toughness polymers, and formed articles made from concrete and high toughness polymers. The methods and compositions are useful for improving the durability of concrete roads and structures, as well as the durability of repairs to concrete roads.

Honeycomb structure body

A honeycomb structure body that does not, because of its high strength and durability, break even if it has a local temperature change and is highly resistant to thermal shock and vibration. The honeycomb structure body is constructed such that column-like honeycomb units are bound together, with seal material layers in between, and the honeycomb units each have a large number of cells arranged side by side, with cell walls in between, so as to be oriented in the longitudinal direction of the units. The area of a cross-section of each honeycomb unit orthogonal to the longitudinal direction of each unit is in the range of 5 - 50 cm2, the honeycomb units contain inorganic particles, and inorganic fibers and/or whiskers, and the Young’s modulus of the honeycomb units is 50 - 150% of the Young’s modulus of the seal material layers.

Low-temperature method for joining glass and the like for optics and precision mechanics

Die vorliegende Erfindung betrifft ein Verfahren zum Fügen von zwei oder mehr Bauteilen aus Glas, Keramik und/oder Glaskeramik mit Hilfe einer Wasserglas-Fügelösung mit Natrium-, Kalium- und/oder Lithiumionen und/oder eines Kieselsols, bei welchem die Fügelösung auf Fügeflächen zwischen die zu fügenden Bauteile gebracht und bei milden Temperaturen verfestigt wird, wobei das Verfahren entweder dadurch gekennzeichnet ist, dass die Fügelösung einen Zusatz enthält, ausgewählt unter Borsäure, Borverbindungen, aus denen durch Hydrolyse Borsäure entstehen kann, Aluminiumacetaten, Aluminiumsilicat/NH3/H2O Titanverbindungen, die in wässriger Lösung Titan-Hydroxokationen bilden, wasserlöslichen Zinkverbindungen, wasserlöslichen Zirkonverbindungen und wasserlöslichen Yttriumverbindungen, wobei dieser Zusatz in einer Menge zugegeben wird, die den pH-Wert der zugrunde liegenden Wasserglas-Fügelösung verringert, und/oder dadurch gekennzeichnet ist, dass nach Aufbringen der Fügelösung und Zusammenfügen der zu fügenden Bauteile und deren Fixierung eine Trocknung der gefügten Bauteile durch Entfernen von Wasser bei Raumtemperatur erfolgt, wobei nach der Trocknung eine Temperung der gefügten Bauteile im Vakuum bei einer Temperatur im Bereich von oberhalb Raumtemperatur bis zu 200°C erfolgt. The present invention relates to a method for joining two or more components made of glass, ceramic and / or glass ceramic with the aid of a waterglass fusing solution with sodium, potassium and / or lithium ions and / or a silica sol, wherein the Fügelösung on joint surfaces between the components to be joined are brought and solidified at mild temperatures, the method being characterized in that the bridging solution contains an additive selected from boric acid, boron compounds from which boric acid can be formed by hydrolysis, aluminum acetates, aluminum silicate / NH 3 / H 2 O titanium compounds, which form in aqueous solution titanium hydroxocations, water-soluble zinc compounds, water- ...

Method for producing ceramic porous article

본 발명은 골재 입자로 되는 세라믹 입자와 유리 프리트와 실리카 입자를 혼합하고, 소정 형상으로 성형하여 얻어진 성형체를 건조시킨 후, 소성하는 세라믹 다공체의 제조 방법이다. 본 발명의 세라믹 다공체의 제조 방법에 의하면, 산이나 알칼리에 대해 우수한 내식성을 갖는 세라믹 다공체를 제조할 수 있고, 또한 제조 시에 왜곡이나 크랙 등의 결함이 생기기 어렵다. This invention is a manufacturing method of the ceramic porous body which mixes the ceramic particle which becomes aggregate particle, glass frit, and a silica particle, drys the molded object obtained by shape | molding to predetermined shape, and bakes. According to the method for producing a ceramic porous body of the present invention, a ceramic porous body having excellent corrosion resistance against acids and alkalis can be produced, and defects such as distortion and cracks are less likely to occur during production.

陶瓷多孔体的制造方法

本发明的陶瓷多孔体制造方法是将作为骨料粒子的陶瓷粒子与玻璃料和硅石粒子进行混合，成形为规定形状，使得到的成形体干燥后，进行烧成。根据本发明的陶瓷多孔体的制造方法，能够制造对酸和碱具有优越的耐腐蚀性的陶瓷多孔体，且制造时不易产生变形和裂纹等的缺陷。

Method for Producing Ceramic Porous Article

There is provided a method for manufacturing a ceramic porous body comprising the steps of: mixing glass frit and silica particles with ceramic particles coming to function as framework particles to give a mixture, forming the mixture into a predetermined shape to obtain a formed body, drying the formed body, and firing the dried formed body. According to a method for manufacturing a ceramic porous body of the present invention, a ceramic porous body having excellent corrosion resistance against acid and alkali, and defects such as a strain and a crack are hardly caused during manufacturing.

Method for producing ceramic porous article

Method for producing ceramic porous article

A method for producing a ceramic porous article, which comprises mixing ceramic particles as an aggregate, a glass frit and silica particles, forming the resultant mixture into an article having a prescribed shape, drying the resultant formed article, followed by firing. The above method can be used for producing ceramic porous article exhibiting excellent corrosion resistance to an acid and an alkali, and also is less prone to cause a defect such as distortion, cracking or the like during operations for the production thereof.

Method for producing ceramic porous article

There is provided a method for manufacturing a ceramic porous body comprising the steps of: mixing glass frit and silica particles with ceramic particles coming to function as framework particles to give a mixture, forming the mixture into a predetermined shape to obtain a formed body, drying the formed body, and firing the dried formed body. According to a method for manufacturing a ceramic porous body of the present invention, a ceramic porous body having excellent corrosion resistance against acid and alkali, and defects such as a strain and a crack are hardly caused during manufacturing.

Method for producing ceramic porous body

本発明は、骨材粒子となるセラミック粒子とガラスフリットとシリカ粒子とを混合して、所定形状に成形し、得られた成形体を乾燥させた後、焼成するセラミック多孔体の製造方法である。本発明のセラミック多孔体の製造方法によれば、酸やアルカリに対して優れた耐蝕性を持ったセラミック多孔体を製造でき、かつ、製造時に歪みやクラック等の欠陥が生じにくい。 The present invention is a method for producing a ceramic porous body in which ceramic particles to be aggregate particles, glass frit, and silica particles are mixed, molded into a predetermined shape, and the obtained molded body is dried and then fired. . According to the method for producing a ceramic porous body of the present invention, a ceramic porous body having excellent corrosion resistance against acids and alkalis can be produced, and defects such as distortion and cracks are unlikely to occur during production.

Aqueous coating agent based on colloidal silicic acid anhydride

Inorganic coating compositions

Amino alcohol stabalized colloidal silica

A finely divided silica binder which is stabilized with an amino alcohol. It may be used to form a slurry for making high temperature casting shells, including a finely divided refractory material and water, providing improved stability to the slurry and other advantages.

Coated facade or roof insulation board made of mineral fibers, as well as processes for their production

Colloidal silica protective coating and method of making same

Amino alcohol stabilized colloidal silica

A finely divided silica binder which is stabilized with an amino alcohol. It may be used to form a slurry for making high temperature casting shells, including a finely divided refractory material and water, providing improved stability to the slurry and other advantages.

Amino alcohol stabalized colloidal silica

A finely divided silica binder which is stabilized with an amino alcohol. It may be used to form a slurry for making high temperature casting shells, including a finely divided refractory material and water, providing improved stability to the slurry and other advantages.

INORGANIC PREPARATION FOR COATING OBJECTS

Aqueous coating agent based on colloidal silicic acid anhydride

The membrane technique with ceramic liquid binder for enhancing durability performance of concrete and steel structures

A method for preparing a liquid-phase inorganic binder is provided to produce the environment-friendly inorganic binder which has improved affinity with a concrete or steel structure, exhibits heat resistance upon firing, and functions as a rustproof coating material. A method for preparing a liquid-phase inorganic binder includes the steps of: adding a diluent comprising calcium hydroxide and isopropanol to a mixture comprising an aqueous colloid-phase nano metal oxide A with pH 9.0-10.5, an aqueous colloid-phase nano metal oxide B with pH 8.5-9.0, and an aqueous colloid-phase nano metal oxide C with pH 9.0-10.0 to prepare composite colloid-phase nano metal oxide sol having pH 12-13 and a sodium oxide content of 0.1-0.4wt%; adding pure water, potassium hydroxide, and aluminum hydroxide to the composite colloid-phase nano metal oxide sol, thereby substituting functional groups of nanoparticles of the nano metal oxide sol with aluminum ions and potassium ions to prepare an intermediate with pH 12-13; and adding organoalkoxysilane and organoaminosilane to the intermediate to react the admixture at 80 °C and at a speed of 3000 rpm for a hour.

Organic amine-strong base stabilized high surface area silica sols and method for preparing same

COMPOSITIONS CONSISTING ESSENTIALLY OF COLLOIDAL SILICA SOLS HAVING A SURFACE AREA OF FROM 950 TO 1800 M.2/GRAM STABILIZED WITH A CO-STABILIZER SYSTEM CONSISTING OF (1) AN ORGANIC OR INORGANIC BASE HAVING A BASIC DISSOCIATION CONSTANT GREATER THAN 10-**2 AND (2) AN ORGANIC MONOAMINE ARE USEFUL AS REFRACTORY BINDERS.

Refractory laminate having improved green strength

A rapid process is provided for forming a refractory laminate having improved green strength on the surface of a substrate by dipping the substrate alternately, in either order, into (A) a slurry of particulate refractory material in a sol of negatively charged colloidal particles of an inorganic substance and (B) a slurry of a particulate refractory material in a sol of positively charged colloidal particles of an inorganic substance, the improvement which comprises substituting (C) a slurry of a zircon, alumina or an aluminosilicate in a solution of an alkaline ionic silicate for (A) in the third or fifth dip when the first dip is (A) or in the fourth dip when the first dip is (B) and repeating (C) and (B) until a laminate of the desired thickness is built up on the substrate. The process is particularly suited for making expendable, refractory shell molds for precision investment casting of metals by the so-called ''''lost-wax'''' technique.

Refractory laminate based on negative sol or silicate and positive sol

Refractory laminates and refractory laminate articles are provided which comprise alternate layers of (1) a gel of negatively charged colloidal particles of an inorganic substance or an alkaline ionic silicate and (2) a gel of positively charged colloidal particles of an inorganic substance.

Fire-resistant coated building panels

In order to reduce the heat transfer coefficient of coated building panels, the coating and the building panel have a high voidage. This high voidage can be obtained by using a fiber mat and a porous coating applied to the fiber mat. The porous coating includes porous glass particles and a low amount of a binder. The porous glass particles are held together by binder bridges, including a silicate binder and a low amount of an organic dispersion binder, for example an polymeric styrol acrylate. The partial volume filled by the binder bridges is small and therefore there is a remarkable first empty partial volume in between the porous particles. A second empty partial volume is located within the glass particles. The total volume of all pores of the glass particles is a relevant part of the total coating volume. This second empty partial volume is a very good thermal isolation because the individual pores are small and to a high percentage closed chambers not connected to the ambient. The silica binder and the high voidage in the coating provide a high fire-resistance.

Patent JPS5144138B2

Colloidal sealant composition

The present invention relates to the addition of biocidal agents to colloidal silicate coating compositions, said compositions being useful for coating structures prepared from Portland cement compositions.