Patent classifications
C04B33/131
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.
REFLECTIVE PARTICULATE COMPOSITIONS INCLUDING A PARTICULATE MIXTURE HAVING IMPROVED HARDNESS, METHODS OF MAKING THE SAME, AND METHODS FOR ANALYZING PARTICULATE MIXTURE STRENGTH
A reflective granular composition including a reflective pigment material including a majority of kaolin clay and a hardening additive including a sodium salt or another salt. A method for making a reflective granular composition includes the steps of mixing together a reflective pigment material including a majority of kaolin clay and a hardening additive including a sodium salt or another salt to form a particulate mixture, forming a slurry from the particulate mixture by adding to the particulate mixture water and a binder material, granulating the slurry, drying the granulated slurry, and kilning the dried, granulated slurry to form the reflective granular composition. Methods of analyzing the strength of a reflective granular composition are also disclosed.
Preparation method of nanometric size metal oxide additives that reduce the temperature of sinterized and/or increase productivity in the manufacture of ceramic parts, improving mechanical properties without affecting the gresification properties of ceramic bodies, tiles or coatings
The object of this invention is a process for manufacturing, conditioning and stabilization of a family of base additives sodium, potassium, boron, silicon, zinc, calcium oxides, among others, prepared by physicochemical and chemical synthesis methods that form nanometric structures, reformulated with deflocculant, sequestrants and dispersants additives that allow to obtain a dispersion or powder capable to decrease the sintering temperature of a ceramic body due to the high fluxing power, which is maximized by the use of nanotechnology in the structures obtained. The process consists in the preparation of nucleation seeds of metal, silicates and carbonates oxides by means of a physicochemical process, and which allow nanometric structures to grow by means of a chemical process in a chemical synthesis process wet basis of sodium, boron, silicon, zinc, potassium and calcium oxides. The combination of these oxides allows structuring elements of high fluxing power due to their high surface area and physicochemical composition. The additives prepared in this invention are chemically stabilized with deflocculating agents, which allow the additives to be incorporated into the aqueous medium grinding process of the ceramic body. Applications made with the additives of this invention allow the sintering temperature of a red body to be reduced from 1150° C. to 1000° C. and in porcelain bodies from 1180° C. to 1050° C., with the use of 0.2 to 5% of the additive, or increasing the speed of the heat treatment by up to 20%, and it can be used in the manufacture of bathroom fittings, molding parts, components for tooling, coatings, valances, enamels, vitrified pastes and other ceramic components. The present invention proposes several nanostructured additive formulations with high performance fluxing properties, which allow to optimize and standardize the sintering process and to improve the mechanical properties of the ceramic body. It also proposes different methods of application of the additive in ceramic formulations.
ADVANCED LEAD-FREE RADIATION PROTECTION MATERIALS UTILIZING MODIFIED BRINE SLUDGE COMPOSITION AND THE PROCESS THEREOF
The novel process enables designing of raw materials and processing parameters, enabling synergistic and simultaneous chemical reactions among the various reactants of the design mix of chemical precursor of brine sludge which includes barium sulphate, magnesium hydroxide, calcium carbonate, sodium chloride, silica, aluminum containing compounds necessary for developing highly efficient shielding phases leading to homogenous matrix of shielding materials.
High-strength glass-ceramic-based lightweight aggregates and preparation method thereof
The invention discloses high-strength glass-ceramic-based lightweight aggregates and the preparation method thereof. The mass ratio of raw material components is 50-70 parts of engineering muck, 20-40 parts of glass, 3-7 parts of calcium carbonate, 3-7 parts of magnesium oxide, and 2-10 parts of a nucleating agent; the nucleating agent is at least one of calcium fluoride, titanium dioxide, and chromium oxide. After crushing, mixing, and granulating, spherical particles with a particle size of 10-12 mm are formed; and then the product can be obtained after drying, sintering, and cooling. The obtained lightweight aggregate from the invention has a diopside matrix which provides high strength and a low water absorption rate at low densities. Moreover, waste glass and engineering muck could be utilized with high value.
High-strength glass-ceramic-based lightweight aggregates and preparation method thereof
The invention discloses high-strength glass-ceramic-based lightweight aggregates and the preparation method thereof. The mass ratio of raw material components is 50-70 parts of engineering muck, 20-40 parts of glass, 3-7 parts of calcium carbonate, 3-7 parts of magnesium oxide, and 2-10 parts of a nucleating agent; the nucleating agent is at least one of calcium fluoride, titanium dioxide, and chromium oxide. After crushing, mixing, and granulating, spherical particles with a particle size of 10-12 mm are formed; and then the product can be obtained after drying, sintering, and cooling. The obtained lightweight aggregate from the invention has a diopside matrix which provides high strength and a low water absorption rate at low densities. Moreover, waste glass and engineering muck could be utilized with high value.
NANOPOROUS CERAMIC FOR ATOMIZATION CORE AND PREPARATION METHOD THEREOF
The present disclosure discloses a nanoporous ceramic for an atomization core, and a preparation method thereof. The nanoporous ceramic includes: nano-silica 1 to 60 parts, a ceramic powder 10 to 80 parts, a pore-forming agent 1 to 50 parts, and a sintering additive 1 to 40 parts. The preparation method includes: (1) weighing raw materials, and mixing and ball-milling the raw materials in a ball mill; (2) bake-drying the ball-milled raw materials to obtain a dried mixed powder; (3) adding the dried mixed powder to molten paraffin under stirring, and continuously stirring a resulting mixture to obtain a paraffin slurry; (4) injecting the paraffin slurry into a mold, cooling the mold for forming, and performing demolding to obtain a paraffin mold; (5) preheating the paraffin mold for paraffin removal to obtain a paraffin-removed sample; and (6) sintering and cooling the paraffin-removed sample to obtain the nanoporous ceramic.
METHOD OF TREATMENT OF BAUXITE RESIDUE, SOLID OBTAINED BY THIS METHOD AND BAUXITE TREATMENT PROCESS INCLUDING THIS METHOD OF TREATMENT OF THE BAUXITE RESIDUE
A method of treatment of bauxite residue resulting from a Bayer process of bauxite treatment in order to produce a solid product. The method comprises mixing a quantity of the bauxite residue (1) with a quantity of a glass material (2) to form a mixture. Then, compressing the mixture (4) to form a green body, and sintering (5) the green body. After cooling, the sintered green body thereby provides the solid product.
Fuel-efficient and fuel-saving device
A fuel-efficient and fuel-saving device is provided and includes a first fuel-modification device, an air-refining device, and a tubing-type fuel-modification device. The first fuel-modification device is arranged in a fuel tank. The air-refining device is arranged under a filter screen of an air filter of an internal combustion engine, and the tubing-type fuel-modification device is arranged above a pipeline between the internal combustion engine and the fuel tank. The first fuel-modification device includes a first metal box body and a plurality of nano far-infrared ceramic particles. The surface of the first metal box body has a plurality of uniformly arranged air holes. The plurality of nano far-infrared ceramic particles is arranged in the first metal box body. The ball diameter of the nano far-infrared ceramic particles is larger than the diameter of the air holes.
Composite nanoparticles for roofing granules, roofing shingles containing such granules, and process for producing same
Processes for making algaecidal roofing granules are disclosed. In one aspect, the disclosure provides a method includes providing composite nanoparticles comprising algaecidal nanoparticles and a carrier material; coating granule cores with the coating material to form a coating layer having an exterior surface; and applying the composite nanoparticles to the exterior surface of the coating layer to provide the algaecidal nanoparticles at exterior surfaces of the algaecidal roofing granules. In another aspect of the disclosure, a method includes dispersing composite nanoparticles in a coating material, the composite nanoparticles including a carrier material and algaecidal nanoparticles, then coating the granule cores with the coating material to form a coating layer; and curing the coating layer, the cured coating layer providing algaecidal nanoparticles at exterior surfaces of the algaecidal roofing granules.