| 摘要 |
1280856 Carbon black pelleting PHILLIPS PETROLEUM CO 4 Nov 1969 [5 Nov 1968] 54010/69 Heading C1A In pelleting carbon black, the mechanical energy input is regulated according to the value of the pour density or structure, which is sensed periodically. When a rotary pelleter is used the energy input may be varied by varying the speed and duration of rotation. |
