Treatment of contaminated stretford solution

Details Treatment of contaminated stretford solution Treatment of contaminated stretford solution

C - Chemistry, Metallurgy

01

B

252/30

C01B 17/04 (2006.01) B01D 53/52 (2006.01) C10K 1/12 (2006.01)

Patent

CA 1175793

ABSTRACT OF THE INVENTION A side-stream portion of a Stretford process solution is taken from the main-stream in order to reduce the amount of undesirable side-products in the solution and the anthraquinone disulfonate (ADA) and vanadium are salvaged from the side-stream by taking up the ADA on activated carbon and the vanadium in an anion exchange resin. The ADA and vanadium are recovered for re-cycling back to the Stretford process. 29,460-F

409465

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