| 摘要 |
<p>The material is made by treatment of a natural or synthetic palygorskite, consisting of a fibrous, crystalline hydrated magnesium silicate of formula. - Si8Mg5(OH)2O20(H2O)4.4H2O - This is treated with a base consisting of an alkaline hydroxide, alkaline earth, ammonium or transition metal hydroxide, in presence of a polar liquid.</p> |
