A refractory formulation containing an anhydrous solvent, an oleophilic rheology modifier and a refractory aggregate exhibits non-thermoplastic behavior, and remains plastic and formable at temperatures in the range of 10 degrees Celsius to 180 degrees Celsius. The oleophilic rheology modifier may effectively bind with the solvent to create a gel-like structure with organic solvents with moderate to high polarity. A phyllosilicate clay that has been treated with a quaternary fatty acid amine may be used as the oleophilic rheology modifier.

A ceramic filter including composite material having a porosity comprised between 0.1 m and 10 m is provided. A process for cleaning the ceramic filter, a process for producing the ceramic filter and a container for liquids including the ceramic filter are also provided. Advantageously, the ceramic filter, the process for cleaning the ceramic filter, the process for producing the ceramic filter and the container for liquids comprising the ceramic filter help people live a healthier lifestyle, through non-disposable but long-lasting products, promoting consumption of tap water and eliminating 100% of plastics. The ceramic filter and the container for liquids comprising the ceramic filter advantageously give people the possibility of drinking pure, good and safe water, producing zero waste, through sustainable, long-lasting and completely plastics-free products.

A method for preparing modified calcined kaolin particles with surface amphiphilicity. The method includes the steps of drying and sieving the calcined kaolin particles, adding ethanol, and stirring to obtain a suspension A, preparing an ethanol solution of a vinyl silane coupling agent, and stirring for a period of time at a certain temperature to obtain a solution B, dripping the solution B into the solution A, and stirring for a period of time at a certain temperature to obtain a suspension C, reducing the temperature of the suspension C, introducing nitrogen, adding a certain amount of sulfhydryl compound, stirring for a period of time at a certain temperature to obtain a suspension D, filtering, washing and drying to obtain the modified calcined kaolin particles.

A marking system includes a composition having at least one color precursor, a moldable substrate having a color developer, and a marking instrument for applying the composition to the moldable substrate to form at least one mark on the moldable substrate. A method of producing a colored three-dimensional molded object includes the steps of manipulating a moldable substrate having a color developer into a molded shape having an outer surface; and applying, on the outer surface of the molded shape, a first composition having at least one color precursor to a first portion of the molded shape.

A method for preparing modified calcined kaolin particles with surface amphiphilicity. The method includes the steps of drying and sieving the calcined kaolin particles, adding ethanol, and stirring to obtain a suspension A, preparing an ethanol solution of a vinyl silane coupling agent, and stirring for a period of time at a certain temperature to obtain a solution B, dripping the solution B into the solution A, and stirring for a period of time at a certain temperature to obtain a suspension C, reducing the temperature of the suspension C, introducing nitrogen, adding a certain amount of sulfhydryl compound, stirring for a period of time at a certain temperature to obtain a suspension D, filtering, washing and drying to obtain the modified calcined kaolin particles.

The present invention relates to a porcelain stoneware element for the construction of driveways.

A refractory formulation containing an anhydrous solvent, an oleophilic rheology modifier and a refractory aggregate exhibits non-thermoplastic behavior, and remains plastic and formable at temperatures in the range of 10 degrees Celsius to 180 degrees Celsius. The oleophilic rheology modifier may effectively bind with the solvent to create a gel-like structure with organic solvents with moderate to high polarity. A phyllosilicate clay that has been treated with a quaternary fatty acid amine may be used as the oleophilic rheology modifier.

A proppant composition may include at least about 50 wt % total silica and up to about 50 wt % total alumina and a connected porosity greater than or equal to about 5%. A proppant precursor composition may include an alumina- or aluminosilicate-containing material and diatomaceous earth, wherein the diatomaceous earth may be greater than or equal to about 25 wt %. A method of making a proppant may include mixing an alumina- or aluminosilicate-containing material and diatomaceous earth to form a precursor composition, pelletizing the precursor composition, and sintering the pelletized precursor composition to form a sintered proppant having a connected porosity greater than or equal to about 5%. A method of treating a fracture site may include delivering a sintered proppant including an active agent to a well site, and dispersing the active agent from the sintered proppant within the well site.

A method of forming a ceramic product, the method comprising producing a ceramic foaming mixture in the form of a slurry, causing the slurry to foam, extruding the foamed slurry to produce a plurality of lengths of extruding material each with a diameter of less than 10 mm, firing the extruded material so as to partially sinter the extruded material, forming the partially sintered extruded material into a required shape for a product, and subsequently firing the shaped partially sintered extruded material to form the ceramic product.

The present invention relates to a lightweight sound-absorbing and fire-resistant insulation panel including: a binder; expanded graphite; and swelling clays, and the swelling clays are formed of honeycomb-shaped layered clays containing water molecules in interlayers and have particle sizes in the range of 50 to 200 m. Further, the expanded graphite is present in an amount of from 10 to 100 parts by weight per 100 parts by weight of the swelling clays. According to the present invention, the insulation panel is made of the expanded graphite and the honeycomb-shaped swelling clays, thus providing excellent lightweightness, sound absorption, insulation, fire resistance and flame retardancy, and further, the insulation panel is manufactured without having any sintering, thus providing simple manufacturing processes and lowering production costs.