Refractory batch and use thereof

A method for the production of a refractory product, comprising:

• providing a dry batch mixture comprising the following components:
• 3 to 74 wt.-% of at least one coarse-grain olivine raw material having forsterite contents of at least 70 wt.-% and having grain sizes above 0.1 mm;
• 25 to 49 wt.-% of at least one magnesia in powder form, having grain sizes≤1 mm;
• 0.9 to 14 wt.-% of at least one silicon carbide (SiC) in powder form, with grain sizes≤1 mm;
• 0.1 to 10 wt.-% of at least one fine-particle, dry, powder-form silica;
• 0 to 4 wt.-% of at least one anti-oxidant for refractory products;
• 0 to 4 wt.-% of at least one additional refractory raw material granulate;
• 0 to 2 wt.-% of at least one admixture for the production of refractory products;
• and
• 0 to 4 wt.-% of at least one additive composed of refractory materials;
• mixing the dry batch mixture with water to form an aqueous mass;
• introducing the aqueous mass into a mold and forming the aqueous mass into a molded body;
• subsequently allowing the molded body to harden;
• and
• drying the molded body.

A method for the production of a refractory product, comprising:

• providing a dry batch mixture comprising the following components:
• 3 to 74 wt.-% of at least one coarse-grain olivine raw material having forsterite contents of at least 70 wt.-% and having grain sizes above 0.1 mm;
• 25 to 49 wt.-% of at least one magnesia in powder form, having grain sizes≤1 mm;
• 0.9 to 14 wt.-% of at least one silicon carbide (SiC) in powder form, with grain sizes≤1 mm;
• 0.1 to 10 wt.-% of at least one fine-particle, dry, powder-form silica;
• 0 to 4 wt.-% of at least one anti-oxidant for refractory products;
• 0 to 4 wt.-% of at least one additional refractory raw material granulate;
• 0 to 2 wt.-% of at least one admixture for the production of refractory products;
• and
• 0 to 4 wt.-% of at least one additive composed of refractory materials;
• mixing the dry batch mixture with at least one non aqueous liquid binder selected from the group consisting of pitch, tar, and synthetic resins to form a ductile mass;
• introducing the ductile mass into a mold and forming the ductile mass into a molded body;
• subsequently allowing the molded body to harden;
• and
• drying the molded body.

A method for the production of a refractory product, comprising:

• providing a dry batch mixture comprising the following components:
• 3 to 74 wt.-% of at least one coarse-grain olivine raw material having forsterite contents of at least 70 wt.-% and having grain sizes above 0.1 mm;
• 25 to 49 wt.-% of at least one magnesia in powder form, having grain sizes≤1 mm;
• 0.9 to 14 wt.-% of at least one silicon carbide (SiC) in powder form, with grain sizes≤1 mm;
• 0.1 to 10 wt.-% of at least one fine-particle, dry, powder-form silica;
• 0 to 4 wt.-% of at least one anti-oxidant for refractory products;
• 0 to 4 wt.-% of at least one additional refractory raw material granulate;
• 0 to 2 wt.-% of at least one admixture for the production of refractory products;
• and
• 0 to 4 wt.-% of at least one additive composed of refractory materials;
• mixing the dry batch mixture with at least one aqueous binder for refractory products to form an aqueous ductile mass;
• introducing the aqueous ductile mass into a mold and forming the aqueous ductile mass into a molded body;
• subsequently allowing the molded body to harden;
• and
• drying the molded body.