Process for preparing carbon-containing refractory ceramic masses and moldings
AssigneeVeitsch-Radex Aktiengesellschaft fur Feuerfeste Erzeugnisse
InventorsFranz Reiterer, Klaus Dosinger
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Abstract
A process for producing fireproof, carbon-containing ceramic moldings in which an oxidic fireproof matrix material with a carbon-containing component and a polymer compound is mixed together to form a mixture, and in which the mixture is processed into moldings. The moldings subsequently are heat-treated.
Claims23
Process for preparing carbon-containing refractory ceramic masses, in which a refractory ceramic matrix material is mixed homogeneously with elementary carbon, together with a non-aromatic polymer compound with a carbon residue (according to Conradson) of less than 0.5 wt. %.
Process for preparing carbon-containing refractory ceramic moldings, in which a refractory ceramic matrix material and elementary carbon in a particle fraction of less than 1 .mu.m are homogeneously mixed with a non-aromatic organic polymer compound with a carbon residue (according to Conradson) of less than 0.5 wt. %, the mixture is subsequently processed into moldings, and the moldings are subsequently heat-treated.
Process for enhancing a refractory ceramic mass to obtain a mass that is pollutant-free when heat treated, comprising the steps of
- mixing a refractory ceramic matrix material with elementary carbon in a particle fraction of less than 1 .mu.m to form a carbon-containing refractory ceramic mass, and
- mixing into the mass a non-aromatic organic polymer compound with a carbon residue (according to Conradson) of less than 0.5 wt. % to obtain an enhanced mass,
- the enhanced mass consisting essentially of the refractory ceramic matrix material, the elementary carbon, and the non-aromatic organic polymer compound, and
- the enhanced mass being pollutant-free when heat treated.
Process of enhancing a refractory ceramic molding to obtain a molding that is pollutant-free during preparation, comprising the steps of
- mixing a refractory ceramic matrix material with elementary carbon in a particle size of less than 1 .mu.m to form a carbon-containing refractory ceramic mass, and
- mixing into the mass a non-aromatic organic polymer compound with a carbon residue (according to Conradson) of less than 0.5 wt. % to obtain an enhanced mass,
- processing the enhanced mass into a molding, and
- heat treating the molding,
- the enhanced mass consisting essentially of the refractory ceramic matrix, the elementary carbon, and the non-aromatic organic polymer compound, and
- the enhanced mass being pollutant-free when heat treated.
Dependencies are inferred from the claim text.