Chromium oxide powder

The invention relates to a particulate powder, said powder having a median circularity of greater than 0.87 wt % and less than 9.0 wt % of particles having a size greater than 100 [mu]m. The powder and at least 80 wt % of the particles have a chemical composition such that, in wt % on the basis of t...

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Bibliographic Details
Main Authors LINNOT CYRIL, BOUSSANT ROUX YVES MARCEL LEON, CITTI OLIVIER, AVEDIKIAN RICHARD, MOITRIER OLIVIER
Format Patent
LanguageChinese
English
Published 01.05.2013
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
GLASS
LIME, MAGNESIA
MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
METALLURGY
MINERAL OR SLAG WOOL
REFRACTORIES
SLAG
TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
TECHNICAL SUBJECTS COVERED BY FORMER USPC
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
TREATMENT OF NATURAL STONE
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Summary:The invention relates to a particulate powder, said powder having a median circularity of greater than 0.87 wt % and less than 9.0 wt % of particles having a size greater than 100 [mu]m. The powder and at least 80 wt % of the particles have a chemical composition such that, in wt % on the basis of the oxides and for a total of 100%: Cr2O3 + Al2O3 + ZrO2 + MgO + Fe2O3 + SiO2 + TiO2 >= 90%; Cr2O3 + Al2O3 + MgO >= 60%; Cr2O3 >= 9%; 20% >= SiO2 >= 0,5%; and other oxides <= 10%. The invention can be used for a glass furnace.
Bibliography:Application Number: CN2011838941