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    • 5. 发明公开
    • 리튬으로 교환된 응집화된 제올라이트 X 및 LSX 의제조 방법
    • 制备沸石的X和LSX与锂离子交换的方法
    • KR1020020005495A
    • 2002-01-17
    • KR1020010040542
    • 2001-07-06
    • 세카 에스. 에이.
    • 마시니쟝-쟈끄쁠레도미니끄사끌뢰쟝-끌로드비달쟝-루이
    • C01B39/22
    • B01D53/02B01D2253/108B01J20/183B01J20/186C01B39/026
    • PURPOSE: A process for the preparation of zeolites X and LSX agglomerated with a binder and for which approximately 50 to approximately 99% of the exchangeable sites are occupied by lithium ions. CONSTITUTION: The process for the preparation of zeolites X and LSX agglomerated with a binder consists in carrying out the exchange with lithium of a portion of the exchangeable cations of the starting zeolite by bringing the said zeolite, distributed in a carrousel of at least 2 receptacles in the stationary bed form which are arranged in series in an interchangeable manner, into contact with a solution of lithium compounds(1) conveyed through the carrousel whose sequence of receptacles is modified cyclically at given time intervals; when the desired degree of exchange with regard to lithium is achieved for the zeolite of the 1st receptacle, the latter is taken out of the carrousel and the zeolite which is present therein is freed from the solution of lithium compounds by washing, then discharged(4) and optionally replaced by a fresh charge of zeolite to be exchanged, and is characterized in that a bleed(5) is drawn off from the stream corresponding to the excess of lithium employed, it being set apart from the effluent generated by the carrousel, and by extracting from the carrousel: first the stream(5) corresponding to the percolation "e" at the outlet of the head column of the carrousel, subsequently the stream(3) corresponding to the percolation "E0" at the outlet of the carrousel. This process makes it possible to achieve a high level of exchange with regard to lithium with a lithium output which is greatly improved with respect to the processes of the prior art.
    • 目的:制备用粘合剂聚集的沸石X和LSX的方法,其中约50至约99%的可交换位点被锂离子占据。 构成:用粘合剂聚集的沸石X和LSX的制备方法在于通过使所述沸石分布在至少2个容器的转盘中进行与起始沸石的一部分可交换阳离子的锂的交换 以可互换的方式串联布置的固定床形式与经由转盘传送的锂化合物(1)的溶液接触,其中接收器序列以给定的时间间隔周期性地修改; 当对于第一容器的沸石达到关于锂的所需交换程度时,将后者从转盘中取出,并且其中存在的沸石通过洗涤而从锂化合物的溶液中除去,然后排出(4 ),并且任选地被新交换的沸石替代,并且其特征在于,从对应于所使用的过量的锂的流中引出渗出物(5),其与由转盘产生的流出物分开, 并且通过从转盘中提取:首先是对应于转盘头柱出口处的渗滤“e”的流(5),随后对应于转盘出口处的渗滤“E0”的流(3) 。 该方法使得可以实现相对于现有技术方法大大改进的具有锂输出的锂的高水平交换。