Method for producing sulfur hexafluoride

Details Method for producing sulfur hexafluoride Method for producing sulfur hexafluoride

1996-10-23

1997-06-17

Nguyen, Ngoc-Yen

Chemistry of inorganic compounds

Halogen or compound thereof

Sulfur containing

423489, 423539, 423565, C01B 1745

Patent

active

056394357

ABSTRACT:
The present invention is directed to methods for preparing sulfur hexafluoride by reacting sulfur tetrafluoride with oxygen. The sulfur tetrafluoride is prepared by contacting molten sulfur with a metal fluoride to produce sulfur tetrafluoride and a metal sulfide. In a preferred method, the metal fluoride is regenerated from the metal sulfide by reacting the metal sulfide with hydrofluoric acid in the presence of oxygen. The preferred metal fluorides are the fluorides of copper, silver, mercury and mixtures thereof.

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patent: 3399036 (1968-08-01), Kleinberg et al.
patent: 4039646 (1977-08-01), Massonne et al.
Mellor, "A Comprehensive Treatise on Inorganic & Industrial Chemistry", vol. X, QD 31.M4, 1947, pp. 630-631. (no month).
Chemical Abstract, 74:49211m, "Formation of Sulfur Difluoride . . . with Silver Fluoride", vol. 74, Mar. 1971.

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