Process for the conversion of vulcanized rubbers into oils by us

Details Process for the conversion of vulcanized rubbers into oils by us Process for the conversion of vulcanized rubbers into oils by us

1994-03-29

1996-03-26

Pal, Asok

Chemistry of hydrocarbon compounds

Production of hydrocarbon mixture from refuse or vegetation

From synthetic resin or rubber

208247, 208108, C07C 700, C07C 132

Patent

active

055022626

ABSTRACT:
A process for the desulfurization of a sulfur-containing composition is described. The process comprises providing a sulfur-containing composition, adding an aqueous medium and a sulfur absorbent to the composition, and subjecting the resultant mixture to hydrothermal reaction under specific conditions to obtain a desulfurized product. When the sulfur-containing composition is made of vulcanized rubbers, the rubber can be converted into oily substances by treating the rubber product under supercritical conditions using an aqueous medium. The conversion reaction is facilitated by addition of metal oxides or salts.

REFERENCES:
patent: 4458095 (1984-07-01), Wingfield, Jr. et al.
patent: 4483761 (1984-11-01), Paspek, Jr.
patent: 4642401 (1987-02-01), Coenen et al.

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