Process for removing mercury and mercury salts from liquid efflu

Details Process for removing mercury and mercury salts from liquid efflu Process for removing mercury and mercury salts from liquid efflu

1976-02-18

1978-05-02

Hart, Charles N.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

75108, 75121, 210 53, 210 54, 423101, C02B 120

Patent

active

040873595

ABSTRACT:
Mercury and mercury salts are removed from liquid effluents (which may also comprise muds and inert products in suspension) by reacting the liquid effluents, at a pH of from 9 to 14, with thiourea or a hydroxylamine salt, and subsequently separating the resulting precipitate, together with muds and inert products, if any, by clari-flocculation.

REFERENCES:
patent: 3369886 (1968-02-01), Metzger et al.
patent: 3377274 (1968-04-01), Burke et al.
patent: 3476552 (1969-11-01), Parks et al.
patent: 3674428 (1972-07-01), Dean et al.
patent: 3695838 (1972-10-01), Knepper et al.
patent: 3740331 (1973-06-01), Anderson et al.
patent: 3764495 (1973-10-01), Guptill et al.
patent: 3847598 (1974-11-01), Coulter et al.
patent: 3857704 (1974-12-01), Coulter
Condensed Chemical Dictionary, 1971, p. 460.

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