| 摘要 |
PURPOSE:To efficiently produce active silicon carbide having a high specific surface area in a short time by adding a specified crystallization agent to a carbonaceous raw material and subsequently thermally reacting the mixture with silicon monoxide. CONSTITUTION:A carbonaceous raw material such as active carbon or porous carbon having a specific surface area of >=60m<2>/g is mixed with 0.1-3.0wt.% of one kind or more of the single bodies (or compounds) of Be, B, Al, P, Cr, Fe, Ga and Bi as a particle growth-inhibiting agent. On the other hand, silica, etc., is mixed and thermally reacted with a reducing component powder such as silicon powder under vacuum to produce silicon monoxide gas. The above- mentioned carbonaceous raw material mixture is reacted with the silicon monoxide gas at 1400-1800 deg.C to produce active silicon carbide. |
