How to convert sodium sulphite and sodium bisulfite to sodium sulphate?

Dhiraj Bhalachandra Thakur @Dhiraj-Thakur-3

01 August 2019 1 1K Report

We have waste stream of sodium suphite and sodium bisulphite from which we want to get sodium sulphate. Stream contain around 12% sodium sulhite and 10% sodium bisulphite.

Bachir Achour

Dear Dhiraj,

Anhydrous sodium sulfite is stable in dry air. In the presence of moist air, it is rapidly oxidized to sodium sulphate. It decomposes at about 600 ° C into sulphate and sodium sulphide.

Regards

Bachir ACHOUR

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