| 摘要 |
<p>The invention is a process for preparing high bulk density spray dried hydrous sodium silicate which comprises providing a spray dried hydrous sodium silicate having from about 13 to about 25% water, compacting the spray dried hydrous sodium silicate by the application of mechanical force to cause the particles to adhere and form articles of a higher density. The high density articles can be broken up or granulated and sized to form a material having a bulk density and particle size in the desired range.</p> |
