Patent · US Active

Refractory coarse ceramic product and method for producing the same and its use

US9809498B2 · kind B2 · utility

1Cited by

3References

21Claims

0Family size

Assignee

Refratechnik Holding GmbH · DE

Inventors

Hans-Juergen Klischat · Oettingen, DE
Carsten Vellmer · Oebisfelde, DE
Holger Wirsing · Oettingen, DE

Key dates

Filing date	Oct 21, 2014
Grant date	Nov 7, 2017
Priority date	—
Expiry date	Oct 21, 2034

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B2235/963
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A refractory, coarse ceramic product including at least one granular refractory material, has an open porosity of between 22 and 45 vol.-%, in particular of between 23 and 29 vol.-%, and a grain structure of the refractory material, wherein the medium grain size fraction with grain sizes of between 0.1 and 0.5 mm is 10 to 55 wt.-%, in particular 35 to 50 wt.-%, and wherein the remainder of the grain structure is a finest grain fraction with grain sizes of up to 0.1 mm and/or coarse-grain fraction with grain sizes of more than 0.5 mm.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.