Process for mercury control during pressure oxidation

Details Process for mercury control during pressure oxidation Process for mercury control during pressure oxidation

C - Chemistry, Metallurgy

22

B

C22B 11/00 (2006.01)

Patent

CA 2699415

A method for suppressing mercury dissolution during pressure oxidation of precious metal-containing materials in the presence of halogens and halides is provided. Pressure oxidation is performed under controlled oxidative conditions to maintain the mercury predominantly in the solid residue.

L'invention concerne un procédé de suppression de dissolution de mercure en cours d'oxydation sous pression de matériaux qui contiennent des métaux précieux en présence d'halogènes et d'halogénures. L'oxydation sous pression est conduite sous conditions oxydatives contrôlées, ce qui permet de maintenir le mercure de façon prédominante dans le résidu solide.

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