DOPED REFRACTORY WITH A HIGH ZIRCONIA CONTENT
    7.
    发明申请
    DOPED REFRACTORY WITH A HIGH ZIRCONIA CONTENT 有权
    具有高ZIRCONIA内容的DOPED REFRACTORY

    公开(公告)号:US20110212826A1

    公开(公告)日:2011-09-01

    申请号:US12672795

    申请日:2008-08-21

    IPC分类号: C04B35/48

    摘要: The invention provides a fused cast refractory product with a high zirconia content comprising, as. a percentage by weight based on the oxides: ZrO2+Hf2O: >85%; SiO2: 6% to 12%; Al2O3: 0.4% to 1%; Y2O3: 0.2%; a dopant selected from the group formed by Nb2O5, Ta2O5, and mixtures thereof, in a quantity such that the molar ratio ZrO2/(Nb2O5+Ta2O3) is in the range 200 to 350.

    摘要翻译: 本发明提供了具有高氧化锆含量的熔铸耐火产品,其包含, 基于氧化物的重量百分比:ZrO 2 + Hf 2 O:> 85%; SiO2:6%〜12%; Al2O3:0.4%〜1% Y2O3:0.2% 选自Nb2O5,Ta2O5及其混合物形成的基团的掺杂剂,其量使得ZrO 2 /(Nb 2 O 5 + Ta 2 O 3)的摩尔比在200至350的范围内。