Process for the removal of mercury from aqueous solutions

Details Process for the removal of mercury from aqueous solutions Process for the removal of mercury from aqueous solutions

1976-07-14

1977-07-26

Ozaki, G.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75 5A, 75121, 75117, C22B 4300

Patent

active

040380718

ABSTRACT:
A process for the removal of mercury from aqueous solutions that have dissolved therein mercuric salts, organomercury compounds, or mixtures thereof comprises (a) contacting the solutions with an amount of hypophosphorus acid, phosphorous acid, or a water-soluble salt of hypophosphorus acid or phosphorous acid that is sufficient to reduce the mercuric and organomercuric ions in the solution to mercury and (b) separating the precipitated mercury from the solution.

REFERENCES:
patent: 3390981 (1968-07-01), Hoffman
patent: 3411953 (1968-11-01), Larson et al.
patent: 3458308 (1969-07-01), Muller
patent: 3494760 (1970-02-01), Ginder
patent: 3501287 (1970-03-01), Lever
patent: 3595614 (1971-07-01), Ford et al.
patent: 3679398 (1972-07-01), Geus
patent: 3718457 (1973-02-01), Entwisle et al.
patent: 3732094 (1973-05-01), Brown et al.
patent: 3873581 (1975-03-01), Fitzpatrick et al.
patent: 3881914 (1975-05-01), Heidelberg

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