| 发明名称 | Chromium oxide powder | ||
| 摘要 | 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 μm. The powder and at least 80 wt % of the particles have a chemical composition 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. | ||
| 申请公布号 | US9145320(B2) | 申请公布日期 | 2015.09.29 |
| 申请号 | US201113811552 | 申请日期 | 2011.07.22 |
| 申请人 | SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN | 发明人 | Linnot Cyril;Moitrier Lionel;Boussant Roux Yves Marcel Leon;Citti Olivier;Avedikian Richard |
| 分类号 | C04B35/12;C03B5/43;C04B35/105;C04B35/106;C04B35/626 | 主分类号 | C04B35/12 |
| 代理机构 | Oliff PLC | 代理人 | Oliff PLC |
| 主权项 | 1. A powder of particles, said powder having a median circularity above 0.87 and at least 90 wt % of particles larger than 100 μm, the powder and at least 80 wt % of the particles having a chemical composition in percentage by weight based on oxides and for a total of 100%, comprising: Cr2O3+Al2O3+ZrO2+MgO+Fe2O3+SiO2+TiO2≧90%, Cr2O3+Al2O3+MgO≧60%, Cr2O3≧9%, 20%≧SiO2≧0.5%, and other oxides: ≦10%. | ||
| 地址 | Courbevoie FR | ||