Desulfurization of fluid materials

Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes

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75 53, 75130R, C22C 3308

Patent

active

043976832

ABSTRACT:
A method for desulfurizing fluid materials, comprising reacting sulfur to be removed with a rare earth compound, thereby forming rare earth sulfides, oxysulfides or mixtures thereof. The reaction is conducted under conditions of low oxygen potential. Rare earth sulfides and oxysulfides can be reacted with oxygen to restore a capacity for desulfurization.

REFERENCES:
patent: 3360364 (1967-12-01), Ivey
patent: 4018597 (1977-04-01), Staggers
patent: 4224063 (1980-09-01), Peregudov
Webster's Seventh New Collegiate Dictionary, p. 809, (1966).

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