Method for producing an α-alumina power
    1.
    发明授权
    Method for producing an α-alumina power 失效
    α-氧化铝粉末的制造方法

    公开(公告)号:US07691362B2

    公开(公告)日:2010-04-06

    申请号:US11211700

    申请日:2005-08-26

    IPC分类号: C01F7/02

    摘要: A method for producing an α-alumina powder is provided. T method for producing an α-alumina powder comprising steps of: (1) pulverizing a metal compound having a full width at half maximum (Ho) of a main peak in XRD pattern to obtain a seed crystal having a full width at half maximum (H) of the main peak in XRD pattern in the presence of pulverizing agent, (2) mixing the obtained seed crystal with an aluminum salt, (3) calcining the mixture, and wherein a ratio of H/Ho is 1.06 or more.

    摘要翻译: 提供了α-氧化铝粉末的制造方法。 T制造α-氧化铝粉末的方法,包括以下步骤:(1)以XRD图案粉碎主峰的半峰全宽(Ho)的金属化合物,得到半峰全宽的晶种( H),(2)将得到的晶种与铝盐混合,(3)煅烧混合物,其中H / Ho比为1.06以上。

    METHOD FOR PRODUCING AN ALPHA-ALUMINA POWDER
    2.
    发明申请
    METHOD FOR PRODUCING AN ALPHA-ALUMINA POWDER 审中-公开
    生产ALPHA-ALUMINA粉末的方法

    公开(公告)号:US20090123363A1

    公开(公告)日:2009-05-14

    申请号:US12348137

    申请日:2009-01-02

    IPC分类号: C01F7/02

    摘要: The present invention provides a method for producing an α-alumina powder. The method for producing an α-alumina powder comprises steps of: (1) pulverizing a metal compound having a full width at half maximum (Ho) of a main peak in XRD pattern to obtain a seed crystal having a full width at half maximum (H) of the main peak in XRD pattern, (2) mixing the obtained seed crystal with an aluminum compound, (3) calcining the mixture, and wherein a ratio of H/Ho is 1.06 or more.

    摘要翻译: 本发明提供一种生产α-氧化铝粉末的方法。 制造α-氧化铝粉末的方法包括以下步骤:(1)以XRD图案粉碎主峰的半峰全宽(Ho)的金属化合物,得到半峰全宽的晶种( H),(2)将获得的晶种与铝化合物混合,(3)煅烧混合物,其中H / Ho的比例为1.06以上。

    Method for producing alpha-alumina particle
    6.
    发明授权
    Method for producing alpha-alumina particle 失效
    生产α-氧化铝颗粒的方法

    公开(公告)号:US07858067B2

    公开(公告)日:2010-12-28

    申请号:US11076836

    申请日:2005-03-10

    IPC分类号: C01F7/00

    摘要: The present invention provides a method of producing an α-alumina particle. The method of producing an α-alumina particle comprises steps of: (1) heating a mixture containing an amorphous alumina and a pyrolyzable salt at temperature of not less than the temperature at which the pyrolyzable salt is decomposed, and less than the temperature at which the amorphous alumina transforms to α-alumina; and (2) calcining the resultant under a partial pressure of water vapor of about 600 Pa or less.

    摘要翻译: 本发明提供一种α-氧化铝颗粒的制造方法。 制造α-氧化铝颗粒的方法包括以下步骤:(1)在不低于可热分解盐分解的温度的温度下加热含有无定形氧化铝和可热解盐的混合物,并且小于 无定形氧化铝转化为α-氧化铝; 和(2)在约600Pa以下的水蒸汽的分压下煅烧所得物。

    Method for producing an alpha-alumina powder
    8.
    发明申请
    Method for producing an alpha-alumina powder 失效
    α-氧化铝粉末的制造方法

    公开(公告)号:US20060073093A1

    公开(公告)日:2006-04-06

    申请号:US11211700

    申请日:2005-08-26

    IPC分类号: C01F7/02

    摘要: A method for producing an α-alumina powder is provided. T method for producing an α-alumina powder comprising steps of: (1) pulverizing a metal compound having a full width at half maximum (Ho) of a main peak in XRD pattern to obtain a seed crystal having a full width at half maximum (H) of the main peak in XRD pattern in the presence of pulverizing agent, (2) mixing the obtained seed crystal with an aluminum salt, (3) calcining the mixture, and wherein a ratio of H/Ho is 1.06 or more.

    摘要翻译: 提供了一种生产α-氧化铝粉末的方法。 T制造α-氧化铝粉末的方法,包括以下步骤:(1)以XRD图案粉碎主峰的半峰全宽(Ho)的金属化合物,得到半峰全宽的晶种( H),(2)将得到的晶种与铝盐混合,(3)煅烧混合物,其中H / Ho比为1.06以上。