| 摘要 |
<p>The invention provides a method wherein aluminacontaining slag from melting of spent alumina catalyst material is transported to a second furnace for finishing to satisfactory temperature, composition and quantity for casting as an abrasive material or cast refractory, In one embodiment of the invention, the molten alumina slag material is cast into an inclined trough for direct delivery from the spent catalyst furnace to the abrasive or refractory furnace for finishing.</p> |
