USE OF NONIONIC SURFACTANTS IN ELECTROWINNING Russian patent published in 2010 - IPC C25C1/00 C25D3/02 C25B1/00 

Abstract RU 2385971 C2

FIELD: metallurgy.

SUBSTANCE: at least one nonionic surfactant in an electrolytic solution is used in electrolytic treatment of metal-containing solutions. The surfactant used reduces surface tension of the electrolytic solution by 20-60%, where the electrolytic solution has surfactant concentration of 0.2 wt % and at temperature of 24°C in an aqueous solution with 190 g/l of sulphuric acid and 157 g/l of copper sulphate, which is diluted with water in ratio of 1:10. The invention can be used for extraction or purification of metals such as copper, chromium, nickel, zinc, gold and silver.

EFFECT: prevention of fogging during extraction of acidic solutions in order to improve properties of the extracted metal.

17 cl, 2 tbl

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Authors

Zeel'Mann-Ehggebert Khans-Peter

Bentele Joakhim

Brodersen Karlos Rene Pons

Dissinzher Uolter

Pinochet Rikardo Daniehl' Lopes

Dates

2010-04-10Published

2006-02-13Filed