| 摘要 |
<p>Provided is a production process which can produce a sintered magnesium oxide material containing magnesium oxide, calcium oxide and aluminum and having a sufficiently high sintered density from a magnesium oxide precursor in which aluminum is dispersed uniformly. A process for producing a sintered magnesium oxide material containing magnesium oxide, calcium oxide and aluminum. In the process, firstly, a magnesium hydroxide slurry containing aluminum is prepared, the magnesium hydroxide slurry is subjected to a hydrothermal treatment, the treatment product is subjected to filtering, washing with water and drying to produce magnesium hydroxide particles, and the magnesium hydroxide particles are fired, thereby producing magnesium oxide particles. Next, the magnesium oxide particles are mixed with calcium compound particles and a binder, the mixture is granulated to produce a granulated powder, the granulated powder is molded in a mold to produce a molding, and the molding is sintered, thereby producing the sintered material.</p> |
