| 摘要 |
<p>An ultra-fine nepheline syenite powder produced from a pre-processed nepheline syenite powder feedstock. The powder having a“controlled”maximum grain size D95 or D99 of less than about 20 microns and a“controlled”minimum grain size D5 in the range of 2-8 microns with a particle size spread D5-D95 of less than about 12 microns.</p> |
