Process for removing mercury from brine sludges

Details Process for removing mercury from brine sludges Process for removing mercury from brine sludges

1977-07-21

1978-11-07

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

204105R, 204128, 75101BE, 423 99, 423103, C25B 126, C25B 136

Patent

active

041244591

ABSTRACT:
The mercury content of electrolysis cell brine sludge is reduced by sequentially: (1) acidifying the sludge to a pH below 2.5 and (2) leaching the sludge with aqueous hypochlorite solvent. The mercury content removed from the sludge may optionally be isolated from the solvent and reused as mercury cathode for brine electrolysis.

REFERENCES:
patent: 1293863 (1919-02-01), Morton
patent: 3536597 (1970-10-01), Yamori et al.
patent: 3691037 (1972-09-01), Updyke
patent: 3801480 (1974-04-01), Krieg
patent: 4012297 (1977-03-01), Balko et al.

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