A ceramic product and a method of producing the ceramic product produced by pretreating the feedstock from at least of iron/steel recovery, recovery of at least one non-ferrous material, sieving, crushing, milling, aging, and thermal treatment, receiving as a first powder a first recovered material from the pretreating, receiving as a second powder a second recovered material from the pretreating, combining the first and second powders with water to form at least one of an extrudable paste and a granulated mixture, forming a green body from the at least one of the extrudable paste after extrusion and the granulated mixture; drying the green body, firing the green body to form the ceramic product, and cooling the ceramic product.

Disclosed is a method for recycling a coal liquefaction residue. The method includes S1, drying a coal liquefaction residue and pulverizing to obtain a pulverized coal liquefaction residue; S2, subjecting the pulverized coal liquefaction residue to a solvothermal extraction in an autoclave to obtain an extract liquid and a residue; S3, distilling the extract liquid and recovering an organic solvent to obtain a solid extract.

There is provided synthetic proppants, and in particular polysilocarb derived ceramic proppants. There is further provided hydraulic fracturing treatments utilizing these proppants, and methods of enhance hydrocarbon recovery.

There is provided an apparatus and process for manufacturing a brick or paver with a high content of coal ash (ranging from 60% to 100% coal ash or fly ash) so that a waste product (coal ash, and more particularly Class F coal ash) from a coal-fired power plant is incorporated into a building product (high content fly ash brick or paver). Also provided is a variable firing tray to support the dried, high content coal ash bricks/pavers as the dried products are sent through a tunnel kiln, to improve circulation around the individual bricks/pavers and thereby result in reduced firing time in the kiln.

A non-spray-dried, dry-granulated ceramic particulate mixture including at least 40 wt % coal combustion fly ash and from 4 wt % to 9 wt % water. At least 90 wt % of the particles have a particle size of from 80 μm to 600 μm.

The present invention relates to a technology for the production of porcelain stoneware products, wherein the treatment process allows to re-use recovery materials coming from the treatment of urban waste.

In particular, the present invention relates to the production of products for the construction of driveways.

The present invention relates to a technology for the production of porcelain stoneware products, wherein the treatment process allows to re-use recovery materials coming from the treatment of urban waste.

In particular, the present invention relates to the production of products for the construction of driveways.

A porous refractory article including greater than 90 wt % coal combustion fly ash. The coal combustion fly ash is in the form of an interconnected particulate lattice structure, and wherein greater than 50% by volume of the coal combustion fly ash particles within the particulate lattice structure have a particle size of greater than 150 μm. The article has: (a) an apparent porosity of from 30% to 50%, (b) a porosity such that the maximum pore size is less than 500 μm; (c) a cold crushing strength of at least 4.0 MPa; and (d) a thermal conductivity of less than 1.5 W/(m.Math.K).

A particulate mixture, suitable for use in ceramic article production, wherein the mixture includes from 30 wt % to 80 wt % recycled aluminium silicate material. The particulate mixture has a particle size distribution such that: (i) the d.sub.50 particle size is from 10 μm to 30 μm; (ii) the d.sub.70 particle size is less than 40 μm; and (iii) the d.sub.98 particle size is less than 60 μm.

A particulate mixture, suitable for use in ceramic article production, wherein the mixture includes from 30 wt % to 80 wt % recycled aluminium silicate material. The particulate mixture has a particle size distribution such that: (i) the d.sub.50 particle size is from 10 μm to 30 μm; (ii) the d.sub.70 particle size is less than 40 μm; and (iii) the d.sub.98 particle size is less than 60 μm.