Material, use thereof and method to manufacture said material; wherein the material is porous and has: a total porosity ranging from 50% to 80%, in particular from 60% to 70%; interconnected pores; at least a part made of a hydrophilic material, in particular at least a part of the inner surfaces of the pores is made of a hydrophilic material; a permeability coefficient greater than 10.sup.6 m/sec; and wherein, in a given volume of the material, the total volume of pores with a diameter ranging from 0.1 m to approximately 0.3 nm is at least greater than 15% of the total volume of the pores, preferably it ranges from 15 to 36%.

A method for manufacturing a naturally cooling ceramic receptacle comprising preparing a clay body by adding ball clay and/or quartz, water and deflocculant, forming the clay body into a desired shape of the ceramic receptacle with molds by at least one of roller making, pressure casting and slip casting, demolding the formed clay body and drying at a temperature higher than a room temperature, performing a first firing of the clay body in a kiln at a temperature higher than 1050 C. to obtain a biscuit receptacle, mixing a slip casting clay with desired color pigments to produce plastic colored slip casting clay, dipping the biscuit receptacle into the colored slip casting clay and drying, and performing a second firing of the biscuit receptacle with the dried color slip casting clay in a kiln at a temperature higher than 1000 C. but lower than the temperature of the first firing.

A method for manufacturing a naturally cooling ceramic receptacle comprising preparing a clay body by adding ball clay and/or quartz, water and deflocculant, forming the clay body into a desired shape of the ceramic receptacle with molds by at least one of roller making, pressure casting and slip casting, demolding the formed clay body and drying at a temperature higher than a room temperature, performing a first firing of the clay body in a kiln at a temperature higher than 1050 C. to obtain a biscuit receptacle, mixing a slip casting clay with desired color pigments to produce plastic colored slip casting clay, dipping the biscuit receptacle into the colored slip casting clay and drying, and performing a second firing of the biscuit receptacle with the dried color slip casting clay in a kiln at a temperature higher than 1000 C. but lower than the temperature of the first firing.

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.

The invention relates to a construction unit made from various recyclable materials, for example, from recycled waste plasterboard from the construction industry or flue-gas gypsum which is a by-product from fossil-fueled power plants. The construction units are made from a raw mix comprising gypsum, clay and aggregate and methods of making construction units. The invention also relates to a raw mix for making a construction unit; a kit including a construction unit and mortar; and uses of the construction unit to form a structure.

A dried or at least partially dried ceramic feedstock, a method of preparing a dried or at least partially dried ceramic feedstock having a residual solvent content of up to about 15 wt. %, ceramic formulations comprising one or more ceramic precursors, temperature sensitive gelling agent, solvent, and having a viscosity suitable for low pressure injection molding, methods for preparing said ceramic formulations, a method of forming a ceramic article from said ceramic formulations, and a ceramic article obtainable therefrom.

The present invention relates to a filler for a paint composition, wherein the filler comprises a calcinate having particles with an average particle size (d.sub.50, SediGraph III) in the range between 3 m and 50 m and a mullite content of 30-70 measured as mullite index. The invention is characterised in that the bulk density of the filler is >450 g/L. The invention also relates to a paint composition characterised in that it comprises a filler which has a bulk density >450 g/L and comprises a calcinate which has particles with a mean particle size (d.sub.50, SediGraph III) in the range between 3 m and 50 m and a mullite content of 30-70 measured as mullite index. Furthermore, the invention relates to uses of such a filler for the preparation of a paint composition.

A method for recovering valuable metals and simultaneously preparing ceramsite by roasting cyanide tailing belongs to the area of comprehensive recovery and high value utilization of metallurgical waste residue. In this method, cyanide tailings, bentonite, calcium chloride, coal powder and albite are mixed by ball milling according to certain weight ratio to get a mixture. After drying and roasting twice, dust is collected from the roasted ash, the obtained polymetallic ash is collected and treated. The secondary calcined material is cooled to obtain ceramsite. The invention volatilizes and recovers the valuable metal in the roasting and sintering process of cyanide tailings and directly prepares the ceramsite through reasonable batching, which achieves the effect of recycling cyanide tailings and high-value utilization, can create good economic and environmental benefits, and has significant effect of energy saving and consumption reduction.

A foundry media pellet includes a sintered ceramic material having a size from about 10 AFS GFN to about 110 AFS GFN, and a surface roughness of less than about 4 microns.

A vermiculite core for a vehicle may include vermiculite and pearlstone, an aluminum component for the vehicle may be manufactured using the vermiculite core including the vermiculite and the pearlstone, and a method for manufacturing the vermiculite core for the vehicle may include mixing the vermiculite and the pearlstone, injecting a mixture of the vermiculite and the pearlstone into a mold, and pressing the mixture using a presser.