Method for making molecular sieves and novel molecular sieve compositions
    4.
    发明授权
    Method for making molecular sieves and novel molecular sieve compositions 有权
    制备分子筛和新型分子筛组合物的方法

    公开(公告)号:US06350429B1

    公开(公告)日:2002-02-26

    申请号:US09465029

    申请日:1999-12-16

    IPC分类号: C01B3704

    摘要: This invention relates to the synthesis of large pore composite molecular sieves and to the synthetic large pore composite molecular sieves so produced. The molecular sieves of the invention have the same general utilities of the comparable molecular sieves of the prior art but have been found to be superior catalysts and absorbents. This invention relates to a hydrothermal synthesis of large pore molecular sieves from nutrients, at least one of which contains an amorphous framework-structure, and which framework-structure is essentially retained in the synthetic molecular sieve. This invention stems from a discovery that the intrinsic porosity characteristics of a nutrient that possesses an amorphous cation oxide-framework can be substantially retained in the final molecular sieve containing product formed by a hydrothermal process by carefully controlling the conditions under which the hydrothermal process is conducted. For example, the invention contemplates retention of the particle size in a final molecular sieve-containing product that corresponds with that of an amorphous cation oxide-framework nutrient used in its manufacture. This invention drives the selection of process conditions to achieve one or more of macro and meso porosity (“large pore composite porosity”) in the final molecular sieve product as a direct product of the hydrothermal reaction producing the molecular sieve. The invention allows the production of a molecular sieve that is in situ incorporated in the framework morphology of a solid cation oxide-framework used in the molecular sieve's manufacture.

    摘要翻译: 本发明涉及大孔复合分子筛的合成以及如此生产的合成大孔复合分子筛。 本发明的分子筛具有与现有技术相当的分子筛相同的通用效用,但已被发现是优异的催化剂和吸收剂。 本发明涉及从营养物质中大量分子筛的水热合成,其中至少一种含有无定形骨架结构,其中骨架结构基本上保留在合成分子筛中。 本发明源自一个发现,即通过仔细控制进行水热处理的条件,具有无定形阳离子氧化物 - 框架的营养物质的固有孔隙特性可以基本上保留在通过水热法形成的含最终分子筛的产品中 。 例如,本发明考虑到在与其制造中使用的无定形阳离子氧化物 - 骨架营养物相当的最终的含分子筛的产品中保留粒度。 本发明驱动工艺条件的选择,以实现最终分子筛产物中作为产生分子筛的水热反应的直接产物的宏观和中孔多孔性(“大孔复合孔隙率”)中的一种或多种。 本发明允许生产分子筛,其原位掺入分子筛制造中使用的固体阳离子氧化物框架的骨架形态。

    Method for making molecular sieves and novel molecular sieve compositions
    7.
    发明授权
    Method for making molecular sieves and novel molecular sieve compositions 失效
    制备分子筛和新型分子筛组合物的方法

    公开(公告)号:US6004527A

    公开(公告)日:1999-12-21

    申请号:US939271

    申请日:1997-09-29

    摘要: This invention relates to the synthesis of large pore composite molecular sieves and to the synthetic large pore composite molecular sieves so produced. The molecular sieves of the invention have the same general utilties of the comparable molecular sieves of the prior art but have been found to be superior catalysts and absorbents. This invention relates to a hydrothermal synthesis of large pore molecular sieves from nutrients, at least one of which contains an amorphous framework-structure, and which framework-structure is essentially retained in the synthetic molecular sieve. This invention stems from a discovery that the intrinsic porosity characteristics of a nutrient that possesses an amorphous cation oxide-framework can be substantially retained in the final molecular sieve containing product formed by a hydrothermal process by carefully controlling the conditions under which the hydrothermal process is conducted. For example, the invention contemplates retention of the particle size in a final molecular sieve-containing product that corresponds with that of an amorphous cation oxide-framework nutrient used in its manufacture. This invention drives the selection of process conditions to achieve one or more of macro and meso porosity ("large pore composite porosity") in the final molecular sieve product as a direct product of the hydrothermal reaction producing the molecular sieve. The invention allows the production of a molecular sieve that is in situ incorporated in the framework morphology of a solid cation oxide-framework used in the molecular sieve's manufacture.

    摘要翻译: 本发明涉及大孔复合分子筛的合成以及如此生产的合成大孔复合分子筛。 本发明的分子筛具有与现有技术相当的分子筛相同的一般用途,但已被发现是优异的催化剂和吸收剂。 本发明涉及从营养物质中大量分子筛的水热合成,其中至少一种含有无定形骨架结构,其中骨架结构基本上保留在合成分子筛中。 本发明源自一个发现,即通过仔细控制进行水热处理的条件,具有无定形阳离子氧化物 - 框架的营养物质的固有孔隙特性可以基本上保留在通过水热法形成的含最终分子筛的产品中 。 例如,本发明考虑到在与其制造中使用的无定形阳离子氧化物 - 骨架营养物相当的最终的含分子筛的产品中保留粒度。 本发明驱动工艺条件的选择,以实现最终分子筛产物中作为产生分子筛的水热反应的直接产物的宏观和中孔多孔性(“大孔复合孔隙率”)中的一种或多种。 本发明允许生产分子筛,其原位掺入分子筛制造中使用的固体阳离子氧化物框架的骨架形态。