Embodiments relate to methods for producing a high purity sodium silicate. The present application relates to a distinct pattern in elemental removal of various sodium silicate solutions, as sodium silicate solutions prepared at high SiO2 to Na2O mass ratios display better elemental removal than sodium silicate solutions prepared at low SiO2 to Na2O mass ratios. Methods therefore include at least (a) providing a biogenic silica; (b) adding the biogenic silica to a first solution (e.g., sodium silicate solution or caustic soda solution); (c) separating undissolved silica form the solution via dissolution to obtain an intermediate solution; and (d) conducting ultrafiltration on the intermediate solution to obtain the high purity sodium silicate.
22222O mass ratios. Methods therefore include at least (a) providing a biogenic silica; (b) adding the biogenic silica to a first solution (e.g., sodium silicate solution or caustic soda solution); (c) separating undissolved silica form the solution via dissolution to obtain an intermediate solution; and (d) conducting ultrafiltration on the intermediate solution to obtain the high purity sodium silicate.
Described is the use of porous silica gel particles or porous precipitated silica particles in treating a wort, wherein the porous silica particles have a water content of 30% by weight or less and a pore volume of 0.4 ml/g or more. Methods of treating a wort and methods of preparing a beverage are also described.
C12C 7/24 - Clarifying beerwort between hop boiling and cooling
C12H 1/044 - Pasteurisation, sterilisation, preservation, purification, clarification, or ageing of alcoholic beverages combined with removal of precipitate or added materials, e.g. adsorption material with the aid of ion-exchange material or inert clarification material, e.g. adsorption material with the aid of inorganic material
4.
Sustainable two-component annular grout composition and method for use with a tunnel-boring machine
A method and composition are provided for backfilling the annular gap created as a tunnel boring machine advances through the ground. The fill material is comprised of two components that are combined and mixed together just prior to entering the annular gap. The first component is non-cement slurry consisting of a fluidized bed combustion ash such as coal ash. The second component consists of an alkali silicate such as sodium silicate. Additionally, ordinary Portland cement and/or metakaolin can be added to the grout composition.
A method and composition are provided for backfilling the annular gap created as a tunnel boring machine advances through the ground. The fill material is comprised of two components that are combined and mixed together just prior to entering the annular gap. The first component is non-cement slurry consisting of a fluidized bed combustion ash such as coal ash. The second component consists of an alkali silicate such as sodium silicate. Additionally, ordinary Portland cement and/or metakaolin can be added to the grout composition.
C04B 28/00 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
C04B 18/06 - Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
The claimed invention refers to the development of rubber recipes to improve essential properties related to correlated rubber compounds. Silica gel is added to the rubber compound as a reinforcing agent, partially replacing some of the precipitated silica. The use of silica gel for the pneumatic market provides improved tear resistance, elongation and adhesion performance, and improves adhesion of the tire on wet surfaces.
The claimed invention refers to the development of rubber recipes to improve essential properties related to correlated rubber compounds. Silica gel is added to the rubber compound as a reinforcing agent, partially replacing some of the precipitated silica. The use of silica gel for the pneumatic market provides improved tear resistance, elongation and adhesion performance, and improves adhesion of the tire on wet surfaces.
2O, from 20% to 55%. Said solution also has a soluble iron content, expressed by Fe, from 0.1% to 7%, and a water content from 38% to 79.9%. The present invention also refers to the process for preparing said stable solution of sodium and iron silicate, which comprises the steps of: (a) providing a siliceous material containing iron; (b) submitting said siliceous material containing iron to a hydrothermal treatment with caustic soda under high temperature and controlled pressure; and (c) filtering said reacted solution to separate the reacted portion of the hydrothermal treatment from the unreacted portion. Additionally, the present invention refers to the uses of said stable sodium and iron silicate solution.
B22C 1/18 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by the use of binding agentsMixtures of binding agents of inorganic agents
C01B 33/14 - Colloidal silica, e.g. dispersions, gels, sols
C01B 33/18 - Preparation of finely divided silica neither in sol nor in gel formAfter-treatment thereof
C04B 35/16 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on silicates other than clay
9.
Stable solution of sodium and iron silicate, process for preparing said solution and uses thereof
2O, from 20% to 55%. Said solution also has a soluble iron content, expressed by Fe, from 0.1% to 7%, and a water content from 38% to 79.9%. The present invention also refers to the process for preparing said stable solution of sodium and iron silicate, which comprises the steps of: (a) providing a siliceous material containing iron; (b) submitting said siliceous material containing iron to a hydrothermal treatment with caustic soda under high temperature and controlled pressure; and (c) filtering said reacted solution to separate the reacted portion of the hydrothermal treatment from the unreacted portion. Additionally, the present invention refers to the uses of said stable sodium and iron silicate solution.
Board of Regents, The University of Texas System (USA)
PQ LLC (USA)
Inventor
Van Oort, Eric
Mcdonald, Michael
Abstract
A method and agent to induce accelerated creep deformation of shale rock formations in the annular gap between a shale formation and non-cemented sections of a casing string have been developed. A fluid containing alkali silicate or a modified alkali silicate is added to the annular space between the shale rock formation and the casing string. The alkali silicate promotes creep deformation of the shale rock, effectively closing the annulus surrounding the casing. It has been found lithium silicate provides the strongest shale-casing bond and is the presently preferred material for closing abandoned wells.
C09K 8/42 - Compositions for cementing, e.g. for cementing casings into boreholesCompositions for plugging, e.g. for killing wells
C09K 8/46 - Compositions for cementing, e.g. for cementing casings into boreholesCompositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement
E21B 33/14 - Methods or devices for cementing, for plugging holes, crevices or the like for cementing casings into boreholes
11.
Self-pressurizing soluble alkali silicate for use in sealing subterranean spaces
Compositions and methods are disclosed for sealing subterranean spaces such as natural or induced fractures, vugs or annular spaces. The composition is composed of a base fluid consisting of a soluble alkali silicate, a gas generating additive, water, solids, and a setting agent. The gas generating additive may be coated or uncoated. The gas generating additive may also be in the form of a slurry. In the case of coated additives, the coating may act as a retarder or an accelerator to the expansion and setting agent of the soluble alkali silica. Similarly, the choice of carrier fluid in a slurry may retard or accelerate the expansion and setting of the alkali silicate-based plug.
E21B 33/138 - Plastering the borehole wallInjecting into the formation
C09K 8/467 - Compositions for cementing, e.g. for cementing casings into boreholesCompositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement containing additives for specific purposes
C04B 12/04 - Alkali metal or ammonium silicate cements
C04B 28/00 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
C09K 8/504 - Compositions based on water or polar solvents
C09K 8/516 - Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls characterised by their form or by the form of their components, e.g. encapsulated material
Embodiments of the invention relate to methods for making and compositions including aqueous alkali aluminosilicates used for conformance. The aqueous alkali aluminosilicates provide similar reaction characteristics of alkali silicates, and in addition provide enhanced conformance properties due to their ability to crystallize.
Embodiments of the invention relate to methods for making and compositions including zeolite with an impregnated titanium dioxide. Such zeolite/titanium dioxide compositions may be useful, for example, as a substitute or extender for titanium dioxide used in coatings.
C01B 39/06 - Preparation of isomorphous zeolites characterised by measures to replace the aluminium or silicon atoms in the lattice framework by atoms of other elements
14.
Use of high ratio aqueous alkali silicates in drilling fluids
Embodiments provide slurries of water and zeolite. These slurries have beneficial properties when mixed with asphalt. These beneficial properties may include extension of the asphalt as well as a decrease in the temperature used to process the cement. In some embodiments additional additives are included, such as anti-strip amines. Methods of making and using the slurries, as well as cement mixtures incorporating the slurries are also included herein.
C01B 39/00 - Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolitesTheir preparationAfter-treatment, e.g. ion-exchange or dealumination
C01B 39/02 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereofDirect preparation thereofPreparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactantsAfter-treatment thereof
Embodiments of the invention provide method for preparing mixtures of natural or artificial zeolite with at least one of recycled asphalt shingles and recycled asphalt pavement. The prepared mixtures are also within the scope of the invention. Mixtures prepared as described herein may be useful, for example, for mixture with hot mix asphalt and cold patch asphalt.
01 - Chemical and biological materials for industrial, scientific and agricultural use
02 - Paints, varnishes, lacquers
03 - Cosmetics and toiletries; cleaning, bleaching, polishing and abrasive preparations
11 - Environmental control apparatus
21 - HouseHold or kitchen utensils, containers and materials; glassware; porcelain; earthenware
42 - Scientific, technological and industrial services, research and design
Goods & Services
Industrial Chemicals and Specialty Chemicals-Namely, Sodium Silicates, Potassium Silicates, Silicas, Magnesium Silicate, Magnesium Sulfate, [ and Microspheres ] Paints and Paint Additives, Including Flatting Agents, Silicas, [ and Reflective Glass Beads ] Cleaning Preparations, Abrasive Preparations and Detergents, Including Formulated Cleaning Compounds for Commercial and Institutional Use, Such as Detergents, Builders, Bleaches and Sours [ Systems and Processes for Treatment of Industrial and Municipal Raw and Waste Water ] [ Glass Products Including Spherodized and Coated Particles ] Technical Assistance and Consulting Services Related to Use of Silicates, Water Treatment, and Other Chemical Products
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Potassium Silicate, Either Anhydrous, Hydrous, Crystalline, Glassy or in Solution, or in Admixture with Other Alkaline Salts, Useful in the Manufacture of Gels, Cements, Coatings, Detergents, and the Like
