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

1979-04-20

1981-01-06

Czaja, Donald E.

Plastic article or earthenware shaping or treating: apparatus

Tumbling type agglomerating means for particulate material

264117, B01J 210

Patent

active

042433657

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: 3900547 (1975-08-01), Hunt et al.
patent: 4102967 (1978-07-01), Vanderveen et al.

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