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    A PROCESS FOR PREPARING MOLECULAR SIEVES VIA CONTINUOUS ADDITION OF NUTRIENTS
    2.
    发明公开
    A PROCESS FOR PREPARING MOLECULAR SIEVES VIA CONTINUOUS ADDITION OF NUTRIENTS 审中-公开
    用于生产分子筛是养分连续添加

    公开(公告)号：EP1922291A2

    公开(公告)日：2008-05-21

    申请号：EP06789247.1

    申请日：2006-08-03

    申请人： UOP LLC

    发明人： KONRAD, Brian S. ,  MARTE, Julio C. ,  MEZZA, Beckay J. ,  WILSON, Stephen T. ,  JACOBSEN, Lance L. ,  LESCH, David A.

    IPC分类号： C01F7/02

    CPC分类号： C01B39/48 ,  C01B39/04 ,  C01B39/54 ,  Y10S423/30

    摘要： A process for synthesizing a variety of molecular sieves has been developed. The process involves forming a reaction mixture comprising reactive sources of the framework elements plus at least one templating agent, reacting the mixture to at least partially crystallize the molecular sieve and provide a slurry of seed crystals and adding to it nutrients (sources) of the framework elements, e.g. aluminum and silicon in order to grow the seed crystals. The rate of addition of the nutrients is controlled such that it is substantially the same as the crystal growth rate and such that there is substantially no nucleation of new crystals. The seed crystals may be the same or different than the nutrients being added, thus allowing for a layered molecular sieve. When the crystals have reached a desired size, they are isolated by conventional techniques.