Process and device for immobilizing mercury by producing...

Details Process and device for immobilizing mercury by producing... Process and device for immobilizing mercury by producing...

2011-03-29

2011-03-29

Vanoy, Timothy C (Department: 1734)

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

C423S566100

Reexamination Certificate

active

07914757

ABSTRACT:
A process for immobilizing mercury by producing crystalline mercury sulfide for subsequent disposal of the mercury sulfide, the mercury sulfide being formed by the reaction of elemental mercury and an additive material of elemental sulfur or a sulfur compound. The reaction of the mercury and of the additive material takes place at least during one time interval at a temperature above the melting point of the additive material.

REFERENCES:
patent: 4640751 (1987-02-01), Dyvik et al.
patent: 5034054 (1991-07-01), Woodward
patent: 7560087 (2009-07-01), Riviere-Huc et al.
patent: 7691361 (2010-04-01), Boyle et al.

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