Pyrolization

Details Pyrolization Pyrolization

1974-05-24

1976-06-29

McCarthy, Helen M.

Compositions: coating or plastic

Materials or ingredients

Miscellaneous

423449, 423461, C09C 144, C09C 148

Patent

active

039664872

ABSTRACT:
The invention relates to the process for recovery of carbon black of controlled quality from scrap-rubber vulcanizates. Scrap rubber is selected on the basis of the quality of the carbon black used in the preparation of the rubber from which the scrap is obtained. The scrap is continuously pyrolized to produce a product composed largely of the carbon black originally present in the scrap. The recovered carbon black is ground and may be used as a reinforcing agent as such, or optionally it may be pelletized to facilitate handling.

REFERENCES:
patent: 3644131 (1972-02-01), Gotshall
patent: 3704108 (1972-11-01), Alpert
patent: 3772242 (1973-11-01), Lisha et al.
patent: 3822218 (1974-07-01), Whittaker et al.
patent: 3823224 (1974-07-01), Rahman et al.

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