A lightweight high-strength ceramsite, comprising solid raw materials and activator as the raw materials, which can be respectively expressed in parts by weight, the solid raw materials: 100 parts, the activator: 1-15 parts; wherein said solid raw materials comprise fly ash: 100 parts, high-alumina fly ash, bauxite and red mud: 6-18 parts, silica fume: 1-5 parts, surfactant: 0.1-3 parts, plasticizer: 6-24 parts; and said activator comprises alkali metal hydroxide: 5-20 parts and alkali metal silicate: 80-95 parts. The lightweight high-strength ceramsite product prepared has a density level of 700-1100 kg/m3 and cylindrical compressive strength of 10-20 MPa, and thus is not susceptible to damage.

Disclosed herein is a multifunction shower head including a ceramic member containing precious serpentine. The ceramic member containing precious serpentine and quartz porphyry is disposed inside the shower head to generate far infrared (FIR) radiation beneficial to the skin. Precious serpentine has antibacterial and deodorizing effects to providing an effect of purifying supply water. Permanent magnets of the multi-ionizer generate ionized water, and a channel of the multi-ionizer has a trapezoidal cross-sectional shape, such that flowing water is exposed to a magnetic field generated by the permanent magnets for a longer period of time. The multi-ionizer radiates negative ions beneficial to the human body.

In one aspect, a film is disclosed, which comprises at least one ceramic material, and a binder mixed with the ceramic material, where the film has a thickness in a range of about 0.01 mm to about 2.5 mm. The film is flexible with a minimum bend radius that is equal to or less than about 2 times a thickness of the film. By way of example, the minimum bend radius of the flexible film can be in a range of about the thickness of the film to about twice the thickness of the film. For example, in some embodiments, the minimum bend radius of the film can be in a range of about 0.02 mm to about 5 mm.

The present invention discloses a method for preparing a low-density proppant by taking oil-based mud wastes as raw materials. The method includes following steps: S1, determining content of oils, silicon oxide, alumina and water in the oil-based mud wastes; S2, adding a viscosity modifier, a framework material and a pore-forming agent into oil-based mud wastes so as to obtain mixed slurry; S3, performing ball milling on mixed slurry to form powder, granulating and drying the powder, and forming a proppant pellet billet; S4, performing dehydrogenation pre-sintering on the pellet billet, and performing carbide reaction pre-sintering; and S5, performing final sintering in a natural gas protective atmosphere, thereby obtaining the low-density proppant that takes silicon carbide as the framework material. In the present invention, the low-density proppant is prepared by taking the oil-based mud wastes produced in a drilling process as the raw materials, thereby recycling the oil-based mud wastes.

The present disclosure relates to the manufacture of ceramic products by aqueous gelcasting. Exemplary ceramic products include sanitary ware, such as toilets and sinks. The process includes a slurrying step, a mixing step, a molding step involving aqueous gelcasting, a drying step, a glazing step, and a firing step.

A composition comprises at least one form of attapulgite present in a solid weight fraction amount ranging from 0.25% to 5%; kaolin present in a solid weight fraction amount ranging from 17% to 50%; and optionally Ball Clay in a solid weight fraction amount ranging from 0% to 25%. Although makeable by other processes, in some embodiments, the composition is makeable by mixing component ingredients. Although usable for other purposes, in some embodiments, the composition is used to make ceramic pieces, e.g., via casting, pressing, jiggering or jollying, especially when the slip has solids, chemistry and viscosity suitable for shaping before drying, sintering, and optionally finishing.

A composition comprises at least one form of attapulgite present in a solid weight fraction amount ranging from 0.25% to 5%; kaolin present in a solid weight fraction amount ranging from 17% to 50%; and optionally Ball Clay in a solid weight fraction amount ranging from 0% to 25%. Although makeable by other processes, in some embodiments, the composition is makeable by mixing component ingredients. Although usable for other purposes, in some embodiments, the composition is used to make ceramic pieces, e.g., via casting, pressing, jiggering or jollying, especially when the slip has solids, chemistry and viscosity suitable for shaping before drying, sintering, and optionally finishing.

A sealing material including a water-resistant sheet, wherein the water-resistant sheet includes layered clay minerals having a thickness of 0.5 nm to 800 nm. A sealing material including a sheet, wherein the sheet includes modified layered clay minerals in which at least a portion of a first cation between the interlayer of swellable layered clay minerals is ion-exchanged with a second cation, in a first cation being one or more selected from Na.sup.+ and Li.sup.+. A sealing material including a sheet, wherein the sheet includes layered clay minerals having a thickness of 0.5 nm to 800 nm, and having one or more selected from K.sup.+, Ba.sup.2+ and Pb.sup.2+ are contained in at least a portion in an interlayer of the clay minerals.

A method for preparing ceramsite by using municipal sludge as raw material, including the following specific steps: drying; preparing ingredients including raw sludge, fly ash, kaolinite, steelmaking slag, zeolite, hematite, calcareous shale, waste incineration fly ash, Fe.sub.2O.sub.3, waste glass, calcium carbonate, sodium lauryl sulfate, and sodium benzoate; mixing and stirring uniformly, and putting the stirred materials into a granulating machine for granulation; drying and preheating the material pellets after granulation, and then quickly transferring to a sintering device for first sintering at a low temperature and then sintering at a high temperature; crushing large chunks of the cooled materials; and separating and screening the crushed materials. The method of the present invention reduces the generation of the large chunks of the cooled materials in the obtained ceramsite, thereby reducing the subsequent crushing work and saving energy consumption accordingly.

A method for manufacturing a ceramic material for thermal energy storage, includes producing a mixture of at least particles of clay and particles of natural and/or synthetic phosphate, and water, the mixture comprising between 0.5% and 40% by weight of phosphate compared to the weight of the mixture with the exception of water, and shaping and firing of the mixture to obtain the ceramic material. A ceramic material for thermal energy storage includes: a matrix of clay and, if appropriate, sand, and particles of a natural and/or synthetic phosphate dispersed in the matrix, the ceramic material comprising between 0.5% and 40% by weight of phosphate compared to the weight of the ceramic material.

A method for storing thermal energy in the ceramic material includes: placing a heat transfer fluid in contact with the ceramic material, to transfer heat from the heat transfer fluid to the ceramic material in a charge phase, and to transfer heat from the ceramic material to the heat transfer fluid in a discharge phase.