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US 11,981,609 B2Granted
Raw material for producing a refractory product, a use of this raw material, and a refractory product comprising a raw material of this kind
AssigneeRefractory Intellectual Property GmbH & Co. KG
InventorsJuergen Muehlhaeusser, Raghunath Prasad Rana, Gerald Reif, Milos Blajs
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Abstract
The invention relates to a raw material for producing a refractory product, a use of this raw material, and a refractory product comprising a raw material of this kind.
Claims15
A raw material for producing a refractory product, comprising the following features:
- 1.1 the raw material has a chemical composition according to which the following oxides are present in the following proportions:
- Al2O3:
- 83 to 93 mass %,
- MgO:
- 4 to 9 mass %,
- CaO:
- 5 to 8 mass %;
- 1.2 the raw material has an open porosity in the range of from 30 to 60 volume %;
- and
- 1.3 wherein the raw material is produced from a batch, a particle size of the batch having a d90 value less than 50 μm.
7 more elements
A method for producing a refractory product comprising:
- producing the refractory product through use of a raw material, wherein the raw material comprises:
- a chemical composition according to which the following oxides are present in the following proportions:
- Al2O3:
- 83 to 93 mass %,
- MgO:
- 4 to 9 mass %, and
- Ca0:
- 5 to 8 mass %;
- and
- an open porosity in the range of from 30 to 60 volume %;
- and
- wherein the raw material is produced from a batch, a particle size of the batch having a d90 value less than 50 μm.
9 more elements
A refractory product which comprises:
- a raw material, wherein the raw material comprises:
- a chemical composition according to which the following oxides are present in the following proportions:
- Al2O3:
- 83 to 93 mass %,
- MgO:
- 4 to 9 mass %, and
- CaO:
- 5 to 8 mass %;
- and
- an open porosity in the range of from 30 to 60 volume %;
- and
- wherein the raw material is produced from a batch, a particle size of the batch having a d90 value less than 50 μm.
9 more elements
Dependencies are inferred from the claim text.