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1. (WO2017198378) SPINEL REFRACTORY GRANULATES WHICH ARE SUITABLE FOR ELASTICIZING HEAVY-CLAY REFRACTORY PRODUCTS, METHOD FOR THEIR PRODUCTION AND USE THEREOF

Pub. No.:    WO/2017/198378    International Application No.:    PCT/EP2017/056999
Publication Date: Fri Nov 24 00:59:59 CET 2017 International Filing Date: Fri Mar 24 00:59:59 CET 2017
IPC: C04B 35/10
C04B 35/101
C04B 35/443
C04B 35/626
C04B 35/64
C04B 35/66
F27D 1/00
C04B 35/653
C04B 35/80
Applicants: REFRATECHNIK HOLDING GMBH
Inventors: LIEVER, Heinrich
SCHULZE-BERGKAMEN, Hilmar
VELLMER, Carsten
Title: SPINEL REFRACTORY GRANULATES WHICH ARE SUITABLE FOR ELASTICIZING HEAVY-CLAY REFRACTORY PRODUCTS, METHOD FOR THEIR PRODUCTION AND USE THEREOF
Abstract:
The invention relates to a granular refractory mineral elasticizing granulate for refractory products, in particular for basic refractory products, wherein the minerals consist of mono-phase fused spinel mixed crystals or multi-phase fusion products of the ternary system MgO-Fe2O3-Al2O3 of the composition range MgO: 12 to 19.5, in particular 15 to 17 wt.-%, remainder: Fe2O3 and Al2O3 in a quantity ratio range of Fe2O3 to Al2O3 between 80 to 20 and 40 to 60 wt.-%, the respective mixed crystals having an Fe2O3 and Al2O3 content in a solid solution, starting from an MgO content between 12 and 19.5 wt.-%, from the limited ranges indicated for each case, to obtain 100% in the total composition. The invention also relates to a method for producing said elasticizing granulate and to the use of the same.