A method for producing foam glass with high open pore content using recycled waste glass. The size of the pores of the foam glass is small and uniform, and such foam glass is suitable for building material with thermal insulating and sound proofing properties. The foam glass produced by this method is lightweight, durable and has high compression strength.

Foamed glass beads can be made from glass, a hydrated foaming agent, a hydrated binding agent, a sealing agent, a fluxing agent, and a solvent. The hydrated binding agent can hold the glass and the hydrated foaming agent in solution. The glass can be derived from glass cullet that is ground into powder. The glass powder, the hydrated foaming agent, the hydrated binding agent, the sealing agent, the fluxing agent, and the solvent can be mixed together to create a preform material that is pelletized to make preform pellets. The preform pellets can be dried and then heated to a predetermined temperature. The heating process can create the final, foamed glass beads.

Systems and methods are disclosed for vaporization suppression. Vaporization suppression may include, for example, evaporation control and/or odor control. A layer of foam glass aggregates may be placed on a body of water. Bodies of water may include natural and man-made aqueous bodies (such as, for example, ponds, lakes, lagoons, reservoirs, tanks, pools, runoff areas, etc.). Water may include clean water, natural water, rainwater, runoff, industrial output, manure slurries, leachates, treatment effuse, etc.). When placed, the foam glass aggregates in contact with the water may have a first moisture content. At equilibrium, the foam glass aggregates in contact with the water may have a second moisture content. The second moisture content may be greater than the first moisture content. The foam glass aggregates in contact with the water may have a bulk density at the second moisture content that is sufficient to maintain buoyancy at the surface of the body of water.

A pelletized expanded glass material is provided, which is particularly suitable as a growth support for microorganisms, especially for use in a biogas plant or an anaerobic sewage treatment plant. The production process of the invention for the pelletized expanded glass material contains the steps of: mixing a ground glass, an expanding agent and a binder to give a starting mixture. The starting mixture is pelletized to give ground glass pellet green bodies. The ground glass pellet green bodies are foamed to give expanded glass pellet particles at temperatures of 600 to 950 C. Accordingly, especially in the production of the starting mixture, minerals and or trace elements are added, which serve especially for the nutrient supply of microorganisms used in the biogas plant or the anaerobic sewage treatment plant.

An apparatus and method for producing foamed glass having a silo (1) for receiving a glass mixture containing a temperature-activated foaming agent, a sluice chamber (12) arranged to receive a volume of glass mixture from the silo, a feed chamber (22) arranged to receive a volume of glass mixture from the sluice chamber, an extruder chamber (26) arranged to receive a volume of glass mixture from the feed chamber where the glass is melted and the foaming agent is activated, one or more nozzles (32) arranged at an end of the extruder chamber, through which a viscous foamed glass material may exit under influence of a positive operating pressure and an expansion chamber (38) arranged to receive foamed glass mixture from the nozzles. The invention also includes a novel foamed glass product having a glassy, sealed outer surface and a unique internal cell structure.

The object of the present invention is a method for producing a fire retardant on the basis of homogeneous foam products. In such a method, a glass is first reacted with an aqueous alkali metal hydroxide solution at temperatures above 50 C. The reaction product is extracted as a viscous mass, granulated, and cooled until a solid granulated product is obtained. According to the invention, the granules are furnished with a hydrophobic coating having a layer thickness of about. 20 m to 500 m and are particularly 50 m to 200 m and preferably 50 m to 100 m and are incorporated in a construction material as a fire retardant additive.

A method of making a foamed glass body, including preparing an admixture of powdered glass, at least one carbonate based foaming agent, and at least devitrification inhibitor, heating the admixture to a first temperature to soften the glass, heating the admixture to a second, higher temperature to foam the softened glass into a foamed glass body, and cooling the foamed glass body, wherein the temperature of the foamed glass body always remains too cold for silica crystal growth. The crystal silica content of the so-formed foamed glass body is less than 1 weight percent.

The invention concerns a phosphate electrode with a base body (1) and a first coating (1a) provided at least in sections of the based body, wherein the base body comprises elemental cobalt and the first coating (1a) comprises a cobalt phosphate, wherein a second coating (1b) is applied at least in section onto the base body and/or the first coating, wherein the second coating binds protons and/or releases hydroxides. The invention further concerns a method for determination of the phosphate concentration with the phosphate electrode.

A foamed glass body, comprising a foamed glass portion and a pore portion. The pore portion includes a plurality of gas-filled pores generally homogeneously distributed throughout the foamed glass portion. The foamed glass portion has a cristobalite content of less than one volume percent.

The present disclosure provides a cellular foam composition, a method for producing and using the same. One particular aspect of the disclosure provides a cellular foam composition comprising a plurality of foam layers, where each foam layer is made from a hollow microstructure material. In particular, the density of the hollow microstructure material in each foam layer is different from the density of the hollow microstructure material that forms the adjacent foam layer. In some embodiments, cellular foam compositions of the disclosure further include an interfacial layer comprising interfacial voids in between adjacent layers.