| 摘要 |
<p>PCT No. PCT/NO93/00058 Sec. 371 Date Dec. 22, 1994 Sec. 102(e) Date Dec. 22, 1994 PCT Filed Apr. 5, 1993 PCT Pub. No. WO93/20154 PCT Pub. Date Oct. 14, 1993.For producing carbon black material having a surface area of less than 5 m2/g, a dibutyl phthalate absorption of less than 30 ml/100 g and density compressed to 1.5-1.7 g/cm3 and a specific electrical resistance of less than 0.1 ohmcm for use as an anode material for aluminum production, a method includes a first stage delivering feedstock through a feed tube to a plasma torch to a reaction area to raise the temperature of the feedstock to about 1600 DEG C., then passing the dehydrogenated carbon material to a second stage to complete the decomposition to carbon black and hydrogen; adding additional raw material to cause quenching and reaction with formed carbon black to increase particle size density and quantity produced.</p> |
