Refratechnik Holding Gmbh

Michael Schölwer

Helge Jansen

Thomas Schemmel

Petra Stein

A heat insulating plate (), preferably a covering plate (), especially for thermal isolation of molten metal, especially of molten steel, in a metallurgical vessel (), wherein the plate () includes a binding agent matrix () of at least one, set, temporary, organic binding material and aggregate grains () with and/or of biogenic silicic acid, preferably with and/or of rice husk ash, which grains () are incorporated into the binding agent matrix (), and to a method for production of the plate () and its use.

Plate, in particular covering plate for molten metal, and method for producing the plate and use thereof

An unfired, refractory molded body (), especially a plate, especially for thermal insulation of molten metal and/or an ingot solidifying from molten metal, that includes a binding agent matrix () of a set binder and aggregate grains () of biogenic silicic acid, preferably of rice husk ash, which are incorporated into the binding agent matrix (), wherein the binding agent matrix () consists of silica gel, as well as a process for its production and its usage.

Insulating, refractory molded body, especially plate, and process for its manufacture and its usage

An unfired, refractory molded body (), includes a binding agent matrix () containing at least one set, permanent binding material and aggregate grains () with and/or of biogenic silicic acid, preferably with and/or of rice husk ash, which grains are incorporated into the binding agent matrix (), for thermal isolation of a molten metal, especially of molten steel, and/or of a metal ingot solidifying from the molten metal, and also the use of the molded body () for thermal isolation of a refractory lining, in particular in a multiple-layer brick wall or in a heat-treatment furnace, or as a corrosion barrier, e.g. against alkali attack, or as a fire protection lining or as filter material for hot gases.

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Velbert, Germany

Michael Schölwer