G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 21/78 (2006.01) C25C 1/16 (2006.01) C25C 7/06 (2006.01) G01N 21/83 (2006.01) G01N 33/20 (2006.01) G05D 11/13 (2006.01)
Patent
CA 2043349
Concentrations of cobalt and copper of electrolysis solution for electrowinning of zinc can be measured any time during electrowinning operation by continuously sampling the solution, diluting it, adding coloring reagent to the flow of the solution and spectrophotometrically analyzing the solution. The cobalt and copper as deleterious impurities can be removed continuously and automatically by measuring their concentrations by the above method and adding precipitation reagents for them in an amount calculated by a microcomputer on the basis of said analysis.
Des concentrations de cobalt et de cuivre d'une solution d'électrolyse pour l'extraction électrolytique de zinc peuvent être mesurées n'importe quand pendant cette extraction, en échantillonnant en continu la solution, en la diluant, en ajoutant un réactif colorant au flux de solution et en analysant la solution par spectrophotométrie. Le cobalt et le cuivre, qui sont des éléments nuisibles, peuvent être éliminés en continu et automatiquement grâce à la mesure de leurs concentrations par la méthode ci-dessus et à l'addition de quantités de réactifs de précipitation calculées par un micro-ordinateur d'après les données de l'analyse.
Hayashibe Yutaka
Minami Mamoru
Takeya Minoru
Yamashita Kazunori
Mitsubishi Materials Corporation
Riches Mckenzie & Herbert Llp
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