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Reductive Precipitation of Elemental Selenium from Selenious Acidic Solutions Using Sodium Dithionite

Nicolas Geoffroy, Auteur ; George P. Demopoulos, Auteur |

Dans Industrial & engineering chemistry research (Vol. 48 N° 23, Décembre 2009)

In this work, the batch-reactor reduction of selenious acid (H2SeO3) species with sodium dithionite (Na2S2O4) from weakly acidic sulfate solutions containing 300 mg/L of selenium at 23 οC was studied. The results showed that, at an initial pH va[...]

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