Chemistry of hydrocarbon compounds – Purification – separation – or recovery – By contact with solid sorbent
Patent
1995-11-28
1997-06-17
Caldarola, Glenn A.
Chemistry of hydrocarbon compounds
Purification, separation, or recovery
By contact with solid sorbent
585241, 585833, 585853, 585854, 585855, 208213, 208226, C07C 712, C07C 132, C10G 2505
Patent
active
056399340
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: 4485095 (1984-11-01), Wingfield, Jr. et al.
patent: 4642401 (1987-02-01), Coenen et al.
Okuda Hiroyuki
Tenno Toshinari
Tsuda Kenji
Yamasaki Nakamichi
Caldarola Glenn A.
Nishikawa Rubber Co. Ltd.
Yamasaki Nakamichi
Yildirim Bekir L.
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