Title: Process for the removal of mercury from aqueous solutions

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.

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Inventors: Di Bella, Eugene P. (Piscataway, NJ, US)

Application Number: 705239
Filing Date: 1976-07-14
Publication_date: 1977-07-26
Assignee: Tenneco Chemicals, Inc. (Saddle Brook, NJ)
Primary Class(es): 588/224 75/739, 210/665, 210/719, 423/101, 588/236, 588/246
Other Classes:
US Patent Ref:

3390981	Jul, 1968	Hoffman	75/108.
3411953	Nov, 1968	Larson et al.	75/108.
3458308	Jul, 1969	Muller	75/108.
3494760	Feb, 1970	Ginder	75/.
3501287	Mar, 1970	Lever	75/.
3595614	Jul, 1971	Ford et al.	75/108.
3679398	Jul, 1972	Geus	75/108.
3718457	Feb, 1973	Entwisle et al.	75/121.
3732094	May, 1973	Brown et al.	75/101.
3873581	Mar, 1975	Fitzpatrick et al.	75/121.
3881914	May, 1975	Heidelberg	75/.

Other Refs:
Primary Examiner: Ozaki, G.
Assistant Examiner:
Attorney: Berlow; Evelyn