| 摘要 |
<p>Powdered phosphates of formula Men+1PnO3n+2 (where n is larger than 2) are mixed with a liquid granulation aid, while blowing into the mass a gas (preferably air), and granulated on a rotary disc granulator; the granules are then treated with a solid granulation aid capable of binding the liquid granulation aid. The product has a low bulk weight and dissolves rapidly; it retains free-flowing properties even after storage in a humid atmosphere.</p> |
