High surface area tetragonal zirconia and processes for synthesizing same
    2.
    发明申请
    High surface area tetragonal zirconia and processes for synthesizing same 失效
    高表面积四方晶氧化锆及其合成方法

    公开(公告)号:US20060245999A1

    公开(公告)日:2006-11-02

    申请号:US11117708

    申请日:2005-04-29

    IPC分类号: C01G25/02

    摘要: A zirconia-containing composition and processes for synthesizing same. The composition comprises least about 99.9 percent tetragonal phase zirconia, based on the total crystalline zirconia in the zirconia-containing composition as determined by x-ray diffraction (XRD). The composition also has a substantially spherical morphology and comprises less than 100 wppm chlorine, based on the total weight of the zirconia-containing composition. The zirconia-containing composition has an average surface area of at least 80 m2/g and an average particle size of less than about 10 microns.

    摘要翻译: 一种含氧化锆的组合物及其合成方法。 基于通过x射线衍射(XRD)确定的含氧化锆组合物中的总结晶氧化锆,该组合物包含至少约99.9%的四方相氧化锆。 基于含氧化锆的组合物的总重量,该组合物还具有基本上为球形的形态并且包含小于100wppm的氯。 含氧化锆的组合物的平均表面积为至少80m 2 / g,平均粒度小于约10微米。

    Selective methylation catalyst, method of catalyst manufacture and methylation process
    3.
    发明授权
    Selective methylation catalyst, method of catalyst manufacture and methylation process 失效
    选择性甲基化催化剂,催化剂制备方法和甲基化方法

    公开(公告)号:US07022637B2

    公开(公告)日:2006-04-04

    申请号:US09771876

    申请日:2001-01-29

    IPC分类号: B01J29/06

    摘要: Novel catalysts and processes in accordance with the invention can accomplish high selectivity and conversion of naphthalenic compounds such as the conversion of methylnaphthalene (2-MN) or naphthalene to 2,6-dimethylnaphthalene (2,6-DMN). The catalysts are prepared by treating, for example, a ZSM-5-type material with iron in the presence of a halogen such as a fluoride. The resulting catalyst includes iron, as well as a significant portion of aluminum present in the ZSM-5-type starting material. Processes for using the catalysts also are disclosed.

    摘要翻译: 根据本发明的新型催化剂和方法可以实现萘化合物的高选择性和转化率,例如将甲基萘(2-MN)或萘转化为2,6-二甲基萘(2,6-DMN)。 催化剂通过在诸如氟化物的卤素存在下用铁处理例如ZSM-5型材料来制备。 所得催化剂包括铁,以及存在于ZSM-5型起始原料中的大部分铝。 还公开了使用催化剂的方法。