Sintered cordierite glass-ceramic bodies
    1.
    发明授权
    Sintered cordierite glass-ceramic bodies 失效
    烧结的玻璃陶瓷体

    公开(公告)号:US3926648A

    公开(公告)日:1975-12-16

    申请号:US47719774

    申请日:1974-06-07

    Inventor: MILLER DAVID M

    CPC classification number: C03C10/0045

    Abstract: The present invention relates to means for sintering powdered glasses having compositions approximating the stoichiometry of cordierite (2MgO.2Al2O3.5SiO2) into strong bodies exhibiting low coefficients of thermal expansion and containing hexagonal cordierite as the crystal phase. Additions of minor amounts of K2O and/or Cs2O to the glass compositions are unique in imparting excellent sinterability at temperatures of 1050*C. and below, and yielding a body which retains a low coefficient of thermal expansion even after repeated thermal cycling to 1000*C.

    Base metal titanate catalysts
    3.
    发明授权
    Base metal titanate catalysts 失效
    钛酸钛催化剂

    公开(公告)号:US3928533A

    公开(公告)日:1975-12-23

    申请号:US44883474

    申请日:1974-03-07

    Abstract: Refractory base metal titanate catalysts showing considerable activity in the oxidation of hydrocarbons and carbon monoxide, comprising titaniferous crystal phases of spinel, ilmenite and/or pseudobrookite structure which consist essentially, in weight percent on the oxide basis, of about 15-85% TiO2, 15-70% M'''' O wherein M'''' is Mn 2, Co 2, Fe 2 or Cu 2, and 0-60% M2''''''O3 wherein M'''''' is Al 3, Fe 3, Cr 3, Mn 3 or Co 3, are disclosed.

    Abstract translation: 在碳氢化合物和一氧化碳的氧化中显示出相当大的活​​性的耐火贱金属钛酸盐催化剂,包括尖晶石,钛铁矿和/或拟铁矿结构的钛结晶相,其基本上以氧化物的重量百分数计,约15-85%的TiO 2, 15-70%M“O,其中M”为Mn 2+,Co 2+,Fe 2+或Cu 2+,以及0-60%M 2“'O 3,其中M' '是Al +,Fe + 3,Cr + 3,Mn + 3或Co + 3。

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