Process for the elution of precious metals adsorbed on...

Details Process for the elution of precious metals adsorbed on... Process for the elution of precious metals adsorbed on...

C - Chemistry, Metallurgy

22

B

C22B 11/08 (2006.01) C22B 3/00 (2006.01) C22B 3/24 (2006.01)

Patent

CA 2170149

A powerful reducing agent such as hydrazine monohydrate is added to the standard eluent solutions such as NsOH-NaCN with or without alcohol. The kinetics of elution of gold or of silver are thus markedly enhanced.

On ajoute un réducteur puissant tel que l'hydrazine monohydrate aux solutions d'élution standard telles que les solutiosn NaOH-NaCN avec ou sans alcool. Ainsi on fait s'accroître nettement la cinétique d'élution de l'or et de l'argent.

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