| 摘要 |
<p>Crystals of the Zeolite Analcime (Analcite) Na2O.Al2O3.4SiO2.2H2O are provided having a largest dimension greater than 50 micron. A method for preparing such crystals by mixing aqueous solutions of aluminium sulphate and sodium metasilicate, allowing a gel to form then heating, is provided. The presence of an organic water-miscible base encourages an increased crystal size. The crystals retain water strongly and a use for them in long term immobilisation of tritiated waste water is provided.</p> |
