Mercury-removal method

Details Mercury-removal method Mercury-removal method

1996-06-28

1998-09-08

Suchfield, George A.

Hydraulic and earth engineering

Soil remediation

In situ contaminant removal or stabilization

588234, 588249, 588900, B09C 106

Patent

active

058036636

ABSTRACT:
A method of removing one or more mercury compounds from mercury-contaminated soil is disclosed. The method includes mixing the mercury-contaminated soil with an additive, and heating the thus produced mixture to a temperature which is below the boiling point of the one or more mercury compounds. The one or more mercury compounds are thereafter recovered from the soil. Preferably, the additive is a chloride compound of iron or nickel.

REFERENCES:
patent: 4087276 (1978-05-01), Generini
patent: 4344793 (1982-08-01), Burkett et al.
patent: 5245120 (1993-09-01), Srinivasachar et al.
patent: 5264654 (1993-11-01), Kreft et al.
patent: 5300137 (1994-04-01), Weyand et al.
patent: 5517004 (1996-05-01), Blonk
patent: 5569154 (1996-10-01), Navetta
A. Roca, et al.; "Study of Chloridizing Volatilization Roasting of Cinnabar as a Basis for a Process to Obtain Mercuric and Mercurous Chlorides"; Apr. 1990; vol. 21B; pp. 259-268.

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