| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bentonite solution prepared by adding a small amount of sodium silicate and/or sodium tripolyphosphate to water, charging and dispersing bentonite in the water. <P>SOLUTION: The bentonite solution is prepared by adding an alkali metal salt. The alkali metal salt is an alkali metal silicate and/or a sodium salt of phosphoric acid. The alkali metal silicate is sodium silicate. For example, 60-140 kg of bentonite and 0.5-20 L, preferably 1-10 L of sodium silicate are used and 1 m3 of the bentonite solution is prepared. Na2OnSiO2 (the molar ratio n=2.89-4.05) is used as the sodium silicate. Sodium tripolyphosphate or sodium hexametaphosphate is used as the sodium salt of phosphoric acid. <P>COPYRIGHT: (C)2012,JPO&INPIT |
