electrorefining

Electrorefining is a method for purifying a metal using electrolysis. An electric current is passed between a sample of the impure metal and a cathode when both are immersed in a solution that contains cations of the metal. Metal is stripped off the impure sample and deposited in pure form on the cathode.
Found on http://antoine.frostburg.edu/chem/senese/101/glossary/e.shtml

electrorefining

(from the article `metallurgy`) ...is brought lower or controlled by pyrometallurgical, electrolytic, or chemical means. Pyrometallurgical refining usually consists of the oxidizing ... This method gives the highest-purity metal product as well as the best recovery of valuable impurities. It is used for copper, nickel, lead, gold, ... ...
Found on http://www.britannica.com/eb/a-z/e/20

Electrorefining

Electrorefining is a method for purifying a metal using electrolysis. An electric current is passed
Found on http://www.superglossary.com/Glossary/Science/Chemistry/
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