Carbon black pellet and method and apparatus for producing same

Details Carbon black pellet and method and apparatus for producing same Carbon black pellet and method and apparatus for producing same

1977-11-21

1979-08-14

White, Robert F.

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Agitating to form larger particles

B01J 212

Patent

active

041645332

ABSTRACT:
A carbon black pellet formed by the pelleting of flocculent carbon black. An outer portion of the pellet contains antioxidant to prevent oxidation of the pellet during drying. The antioxidant is contained in a shell having a thickness sufficient to prevent oxidation of the pellet instead of being distributed throughout the thickness of the pellet. The antioxidant can be admixed with additional carbon black and the admixture used to form the outer layer of a layered pellet or the antioxidant can be mixed with the pelleting liquid used to aid in pelleting the additional carbon black used to form an outer layer of a layered pellet.

REFERENCES:
patent: 3676168 (1972-07-01), Dollinger
patent: 3956445 (1976-05-01), Hunt

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