公开(公告)号：US4292227A

公开(公告)日：1981-09-29

申请号：US102215

申请日：1979-12-10

申请人： Alan S. Michaels ,  Michael W. Weiner ,  Hemant Jalan

发明人： Alan S. Michaels ,  Michael W. Weiner ,  Hemant Jalan

IPC分类号： B01F1/00 ,  C01D5/00 ,  C01D17/00 ,  B01D11/04 ,  B01D13/00

CPC分类号： B01F1/0005 ,  C01D17/003 ,  C01D5/00

摘要： Method and compositions are provided concerning stable supersaturated aqueous solutions of sparingly soluble inorganic salts. The method involves exceeding the solubility level of a sparingly soluable inorganic salt in water at ambient temperatures in the presence of polyanionic polyelectrolyte having a molecular weight of at least about 900 daltons and an ionic equivalent weight of not greater than about 65 and at least five ionizable groups per molecule. The solubility level may be exceeded by cooling a saturated solution of the sparingly soluble salt, preparing the sparingly soluble salt in situ, or adding a soluble salt having a common ion with the sparingly soluble salt to a concentrated or saturated solution of the sparingly soluble salt.

摘要翻译： 提供了关于稳定的过饱和的微溶性无机盐水溶液的方法和组合物。 该方法涉及在环境温度下在分子量为至少约900道尔顿和离子当量不大于约65的聚阴离子聚电解质存在下，在环境温度下超过可溶解的无机盐的溶解度水平，并且至少有五个可离子化 每个分子。 通过冷却可溶性盐的饱和溶液，原位制备微溶盐，或将具有共同离子的可溶性盐与少量可溶性盐一起加入到可溶性盐的浓缩或饱和溶液中，可以超过溶解度水平 。