Process for separating metal sulphates from sulphuric acid

C - Chemistry – Metallurgy – 01 – B

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C01B 17/90 (2006.01) C22B 3/22 (2006.01) C23G 1/36 (2006.01)

Patent

CA 1326588

Process for separating metal sulphates from sulphuric acid ABSTRACT OF THE DISCLOSURE A process for the separation of metal sulphates from dilute sulphuric acid by evaporative concentration of the sulphuric acid to a concentration of from 55 to 75 % by weight H2SO4, cooling of the resulting solution or suspension and mechanically separating the solid metal sulphates and/or hydrogen sulphates, wherein an Fe(III) content of at least 0.01 % by weight is ensured beofre the separation.

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