| 摘要 |
<p>Magnesite-chrome and chrome-magnesite brick fragments are sorted, stored, opt. moistened, and then crushed to a particle size of less than 50 mm. in the moist condition or while spraying with water and opt. simultaneously magnetically separating the iron content. The crushed material is stored for 3-5 weeks with periodic moistening with water and washed until liq. flows out from the material.</p> |
