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    • 106. 发明申请
    • PURIFICATION OF CONTAMINATED LIQUID
    • 污染液体的净化
    • WO1984002089A1
    • 1984-06-07
    • PCT/US1983001844
    • 1983-11-21
    • MACEDO AND LITOVITZ
    • MACEDO AND LITOVITZMACEDO, Pedro, B.SUTTER, Herbert, G.MOHR, Robert, K.SIMMONS, Catherine, J.
    • B01J21/08
    • C03C1/002B01J39/09C03C3/06C03C3/061C03C3/087C03C3/089C03C3/091C03C3/097C03C3/102C03C3/142C03C11/005C03C14/00C03C21/001C03C23/0095C03C2201/10C03C2201/20C03C2201/50G21F9/12
    • A liquid containing radioactive ions is purified (decontaminated) by contacting the same with an inorganic ion exchange composition having ion exchange sites which can be occupied by the radioactive ions from the liquid. The ion exchange composition is a mixture of an ion exchange medium and an additive which is relatively inert to the ion exchange process and which is a sintering aid for the ion exchange medium designed to lower the sintering temperature of the ion exchange composition. The ion exchange composition may be disposed within a suitable container (e.g., cannister), e.g., made of 304L stainless steel or Inconel 601 and the ion exchange process may be carried out in such container. Alternatively, the ion exchange medium can be employed without being previouslz admixed with the additive. The additive, if desired, can be admixed at a later stage with the contaminated medium. Thereafter, the mixture may be sintered and disposed of in any desirable manner as by underground burial of the spent mixture within the container. Also, the container may be placed within a suitably designed furnace for carrying out the ion exchange process, sintering of the ion exchange composition and its safe disposal. Methods are also described for making a homogeneous mixture of the ion exchange medium and the additive which, for example, have a certain defined density and particle size relationship.
    • 通过使含有放射性离子的液体与具有离子交换位点的无机离子交换组合物进行纯化(去污),该离子交换组分可以由液体被放射性离子占据。 离子交换组合物是离子交换介质和对离子交换过程相对惰性的添加剂的混合物,其是用于降低离子交换组合物的烧结温度的离子交换介质的烧结助剂。 离子交换组合物可以设置在合适的容器(例如,罐)中,例如由304L不锈钢或Inconel 601制成,离子交换过程可以在该容器中进行。 或者,可以使用离子交换介质而不预先与添加剂混合。 如果需要,添加剂可以在稍后阶段与污染的介质混合。 此后,混合物可以以任何理想的方式烧结和处理,如通过在容器内废弃的混合物的地埋。 此外,容器可以放置在适当设计的炉内,用于进行离子交换过程,烧结离子交换组合物及其安全处置。 还描述了制备离子交换介质和添加剂的均匀混合物的方法,其例如具有一定的密度和粒度关系。