| 摘要 |
<p>The method for producing a crystalline, inorganic ion exchange material having the following composition: xM2O . ySiO2 . zMeO, wherein x, y and z are numerical values satisfying the relationships of y/x = 0.5 to 2.1, preferably 0.5 to 2.0, and z/y = 0.001 to 1.0; M stands for Na and K, wherein K/Na is in the range from 0.01 to 1.2; and Me stands for Ca and/or Mg, the method including the steps of adding 1 to 85 parts by weight of water to 100 parts by weight of cullets, wherein the cullets have the following compositon: xM2O . ySiO2 . zMeO, wherein x, y, z, M, and Me are defined as above, and then baking the resulting mixture.</p> |
