| 摘要 |
<p>A process for purifying crude silicon carbide lumps from an Acheson furnace comprising agitating the lumps in a drum having a cylindrical wall, its axis substantially horizontal and having openings of controlled size, smaller than said crude lumps, in said cylindrical wall, separating the particles passing through said controlled size openings according to size and recirculating oversize particles back to said rotating drum and finally recovering product retained in said drum.</p> |
