Process for the treatment of waste waters containing sulfuric ac

Details Process for the treatment of waste waters containing sulfuric ac Process for the treatment of waste waters containing sulfuric ac

1974-06-28

1976-01-27

Wyse, Thomas G.

Liquid purification or separation

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

Responsive to fluid flow

210 47, 210 48, 210 50, 423158, C02B 134, C02C 506

Patent

active

039351009

ABSTRACT:
Process for treating a waste water containing sulfuric acid and/or ammonium sulfate comprising (1) reacting said water with barium sulfide to form barium sulfate, (2) reacting the latter with carbon containing inorganic impurities, at high temperature, thereby forming barium sulfide, at least a major portion of which is recycled to step (1), and a gas which is separated, (3) dissolving in water a minor portion of the barium sulfide produced in step (2), separating the insoluble impurities therefrom and recycling at least one portion of the resulting purified solution to step (1).

REFERENCES:
patent: 624041 (1899-05-01), Jacobs
patent: 1557188 (1925-10-01), Newlands
patent: 1959305 (1934-05-01), Rentschler
patent: 2094902 (1937-10-01), Muller
patent: 2863732 (1958-12-01), Bowers et al.
patent: 3784680 (1974-01-01), Strong et al.

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