Sodium sulfite regeneration method using limestone slurry

Details Sodium sulfite regeneration method using limestone slurry Sodium sulfite regeneration method using limestone slurry

1979-07-11

1981-04-14

Vertiz, O.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

423512A, C01B 1700

Patent

active

042619629

ABSTRACT:
In the Double Alkali flue gas desulfurization process wherein sodium bisulfite is produced in a scrubber from the reaction of sulfur dioxide laden flue gases with an aqueous solution of sodium sulfite, the sodium sulfite is regenerated from the sodium bisulfite by reacting the same with a limestone slurry in a bifurcated mixing nozzle having a pair of converging inlets communicating with a common outlet. The reactants are flowed into the inlets at flow rates sufficient to produce turbulence in their zone of confluence in the nozzle to initiate a reaction which, although incomplete in the nozzle, proceeds at a rapid rate to completion after the mixed reactants leave the nozzle.

REFERENCES:
patent: 1271899 (1918-07-01), Howard
patent: 1378617 (1921-05-01), Richter
patent: 3989796 (1976-11-01), Morita et al.
Perry J. H., Chemical Engineer's Handbook; Third Ed., McGraw.

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