Method of recovering antimony and bismuth from copper electrolyt

Details Method of recovering antimony and bismuth from copper electrolyt Method of recovering antimony and bismuth from copper electrolyt

1996-01-11

2000-11-28

Niebling, John

Electrolysis: processes, compositions used therein, and methods

Electrolytic synthesis

Preparing single metal

205586, 423 87, C25C 112, C22B 3000

Patent

active

061530816

ABSTRACT:
A method of recovering antimony and bismuth from copper electrolyte comprises the steps of immersing a pure copper material in the copper electrolyte, so that the iron ions are reduced from Fe.sup.3+ ions to Fe.sup.2+ ions, using a mixture of dilute sulfuric acid and sodium chloride adjusting the acidity or acidic concentration, to selectively elute the bismuth and antimony wherein if the final concentration of bismuth is adjusted to be 0.02 g/l or less in the bismuth election, it is possible to keep the maximum concentration of bismuth in the antimony eluate in the elution of antimony after selective bismuth elution to 0.01 g/l or less.

REFERENCES:
patent: 5316679 (1994-05-01), Bruening
patent: 5366715 (1994-11-01), Dreisinger

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