REFRACTORY SINTERED PRODUCT, RAW MATERIAL, BARCH AND METHOD FOR ITS MANUFACTURE Russian patent published in 2024 - IPC C04B35/47 C04B35/628 

Abstract RU 2812326 C1

FIELD: refractory products.

SUBSTANCE: manufacturing of refractory products using raw materials in the form of magnesite-chromite grains. The grains for making a sintered refractory product contain a fused magnesite-chromite core, the surface of the said magnesite-chromite core having at least a partial coating containing chromium oxide with a thickness of at least 10 mcm. The refractory sintered product contains 30-80 wt.% of MgO and 4-36 wt.% of Cr2O3, and it contains magnesite-chromite grains and at least some of these grains are surrounded by a shell containing picrochromite.

EFFECT: increased corrosion resistance, decreased elastic modulus of refractory products, which improves their resistance to thermal shock.

11 cl, 1 dwg, 5 ex

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RU 2 812 326 C1

Authors

Mancini Fonseca Daniela

Neuboeck Rainer

Moulin-Silva Wagner

Dates

2024-01-29Published

2021-02-02Filed