A refractory has the form of a dry, mineral batch of fire-resistant mineral materials combined in such a way that refractories which are long-term resistant to fayalite-containing slags, sulfidic melts (mattes), sulfates and non-ferrous metal melts and are used for refractory linings in industrial non-ferrous metal melting furnaces can be manufactured. The refractory at least contains: at least one coarse-grained olivine raw material as the main component; magnesia (MgO) meal; at least one fire-resistant reagent which, during the melting process, acts (in situ) in a reducing manner on non-ferrous metal oxide melts and/or non-ferrous metal iron oxide melts and converts same into non-ferrous metal melts.

The present invention relates to a dry refractory particulate composition comprising a zeolithic microstructure, to a green body and to a refractory lining formed therefrom, and to uses thereof.

The invention relates to granules composed of agglomerated reactive bulk material and a binder matrix, the binder matrix comprising as binder an organic or inorganic salt.

A metering device (10) for withdrawing and dispensing a melt consisting of or containing an oxide fibre reinforced oxide ceramic composite material.

Exemplary embodiments relate to a batch for producing an unshaped refractory ceramic product, to a method for producing a fired refractory ceramic product, to a fired refractory ceramic product and to the use of an unshaped refractory ceramic product.

Exemplary embodiments relate to a batch for producing an unshaped refractory ceramic product, to a method for producing a fired refractory ceramic product, to a fired refractory ceramic product and to the use of an unshaped refractory ceramic product.

Exemplary embodiments relate to a batch for producing an unshaped refractory ceramic product, to a method for producing a fired refractory ceramic product, to a fired refractory ceramic product and to the use of an unshaped refractory ceramic product.

A sintering-free inorganic ceramic brick-plate and its preparation method are disclosed. The sintering-free inorganic ceramic brick-plate includes following components by mass parts: 25-40 parts of magnesium oxide; 20-35 parts of magnesium chloride; 20-30 parts of fumed silica; 10-20 parts straw powders; 0.1-0.3 parts of graphene powders with a particle size of 2000 meshes; and 0.2-0.4 parts of airgel powders with a particle size of 100 nm. Compared with the prior art, the present invention utilizes a variety of raw natural non-toxic natural mineral raw materials, namely, the graphene powders with the particle size of 2000 meshes and the airgel powders with the particle size of 100 nm for mixing, and then the mixed raw materials can be solidified at room temperature and form sheets, and then the surface of the sheets is processed through printing or spraying glaze, so as to achieve the effect of high-grade tiles and natural marble.

A sintering-free inorganic ceramic brick-plate and its preparation method are disclosed. The sintering-free inorganic ceramic brick-plate includes following components by mass parts: 25-40 parts of magnesium oxide; 20-35 parts of magnesium chloride; 20-30 parts of fumed silica; 10-20 parts straw powders; 0.1-0.3 parts of graphene powders with a particle size of 2000 meshes; and 0.2-0.4 parts of airgel powders with a particle size of 100 nm. Compared with the prior art, the present invention utilizes a variety of raw natural non-toxic natural mineral raw materials, namely, the graphene powders with the particle size of 2000 meshes and the airgel powders with the particle size of 100 nm for mixing, and then the mixed raw materials can be solidified at room temperature and form sheets, and then the surface of the sheets is processed through printing or spraying glaze, so as to achieve the effect of high-grade tiles and natural marble.

A batch made of refractory mineral materials for lining of assemblies used for nonferrous metal melts, contains over 90% by weight of a mixture of the following constituents:from 3 to 74% by weight of at least one coarse-grain raw olivine material with at least 70% by weight forsterite content and having grain sizes of 50% by weight over 0.1 mmfrom 25 to 49% by weight of at least one ground magnesia with grain sizes of 50% by weight?1 mmfrom 0.9 to 14% by weight of at least one ground silicon carbide (SiC) with grain sizes of 50% by weight?1 mmfrom 0.1 to 10% by weight of at least one fine-particle dry pulverulent silica with particle sizes?500 ?mfrom 0 to 4% by weight of at least one antioxidant known per se for refractory productsfrom 0 to 4% by weight of at least one additional granulated refractory raw material known per se, more particularly having grain sizes of 50% by weight, in particular of 80% by weight, preferably of 100% by weight over 0.1 mmfrom 0 to 2% by weight of at least one additive known per se for the production of refractory products from batchesfrom 0 to 4% by weight of at least one additional substance known per se made of ground refractory materials and/or in the form of what is known as medium-grain-size material and/or of what is known as coarse-grain-size materialfrom 0 to 10% by weight of at least one binder known per se for refractory materials, e.g. in dry form or in ancillary packaging in liquid form.