Method of making either a softener for rubber mixtures or a furn

Details Method of making either a softener for rubber mixtures or a furn Method of making either a softener for rubber mixtures or a furn

1981-08-20

1983-05-17

Lieberman, Allan

Chemistry of hydrocarbon compounds

Production of hydrocarbon mixture from refuse or vegetation

From synthetic resin or rubber

521 445, C07C 308, C07C 326

Patent

active

043841503

ABSTRACT:
A method of making either a softener for rubber mixtures or a furnace fuel oil comprises the steps of heating a hydrocarbonaceous solvent and introducing thereinto waste from vulcanized or nonvulcanized rubbers under intensive stirring. Then the waste is thermally decomposed at a pressure of 5.multidot.10.sup.2 to 25.10.sup.5 n/m.sup.2, the hydrocarbonaceous solvent continuously circulating through the reaction mixture. The end product is separated from the formed suspension by distillation at a temperature of 200.degree. to 560.degree. C. and at a pressure of 10 to 2.multidot.10.sup.5 n/m.sup.2 in the presence of an inert gaseous agent.

REFERENCES:
patent: 2447732 (1948-08-01), Campbell et al.
patent: 3704108 (1972-11-01), Alpert
patent: 3985820 (1976-10-01), Albright et al.
patent: 4118281 (1978-10-01), Yan
patent: 4171345 (1979-10-01), Toshev et al.
patent: 4175211 (1979-11-01), Chen et al.
patent: 4251500 (1981-02-01), Morita et al.

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