Treatment of effluent liquors

Details Treatment of effluent liquors Treatment of effluent liquors

1984-08-21

1986-08-19

Wyse, Thomas

Liquid purification or separation

Processes

Chemical treatment

210766, 210774, C02F 158

Patent

active

046068309

ABSTRACT:
Aqueous effluent liquors such as those derived from the ash-slagging of coal are treated to remove halide, e.g. chloride ions by heating the liquor to 400.degree. C. to 500.degree. C. and contacting the vapor with, for example, a fixed or fluidized bed of calcium carbonate maintained at the reaction temperature.
During the heating, the temperature is increased at a rate of at least 50.degree. C. sec.sup.-1 over the range 100.degree. C. to 300.degree. C. The treated liquor may be used as a reactant in the ash-slagging gasification of coal.

REFERENCES:
patent: 2943026 (1960-06-01), Pollock et al.
patent: 2977292 (1961-03-01), Ellsworth
patent: 3296125 (1967-01-01), Hegner
patent: 4045341 (1977-08-01), Tsuruta et al.
patent: 4153556 (1979-05-01), Riedinger

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