ZINC ELECTROWINNING USING REACTIVE ELECTRODIALYSIS (RED)

This paper presents an alternative process for the conventional zinc electrowinning, which consists of a cell of two compartments separated by a anion exchange membrane. One of them contains a zinc sulphate catholyte and sulfuric acid while the anolyte solution contains ferrous sulfate and sulfuric...

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Autores principales:	CIFUENTES,GERARDO, BUSTOS,PABLO, HERNÁNDEZ,JOSÉ, GUAJARDO,NICOLÁS
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2014
Materias:	zinc electro-winning reactive electrodialysis
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072014000200020
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spelling	oai:scielo:S0717-970720140002000202014-11-05ZINC ELECTROWINNING USING REACTIVE ELECTRODIALYSIS (RED)CIFUENTES,GERARDOBUSTOS,PABLOHERNÁNDEZ,JOSÉGUAJARDO,NICOLÁS zinc electro-winning reactive electrodialysis This paper presents an alternative process for the conventional zinc electrowinning, which consists of a cell of two compartments separated by a anion exchange membrane. One of them contains a zinc sulphate catholyte and sulfuric acid while the anolyte solution contains ferrous sulfate and sulfuric acid. By using a membrane the classical lead anode may be replaced, as well as the main oxidation reaction of water, for that of the ferrous ion to ferric ion. This leads to significant savings in specific energy consumption of the overall process and eliminates the classic problem of acid mist in electrowinning cells. The results show that the proposed process consumes 30% less cell potential compared to conventional electrowinning cell.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.59 n.2 20142014-07-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072014000200020en10.4067/S0717-97072014000200020
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	zinc electro-winning reactive electrodialysis
spellingShingle	zinc electro-winning reactive electrodialysis CIFUENTES,GERARDO BUSTOS,PABLO HERNÁNDEZ,JOSÉ GUAJARDO,NICOLÁS ZINC ELECTROWINNING USING REACTIVE ELECTRODIALYSIS (RED)
description	This paper presents an alternative process for the conventional zinc electrowinning, which consists of a cell of two compartments separated by a anion exchange membrane. One of them contains a zinc sulphate catholyte and sulfuric acid while the anolyte solution contains ferrous sulfate and sulfuric acid. By using a membrane the classical lead anode may be replaced, as well as the main oxidation reaction of water, for that of the ferrous ion to ferric ion. This leads to significant savings in specific energy consumption of the overall process and eliminates the classic problem of acid mist in electrowinning cells. The results show that the proposed process consumes 30% less cell potential compared to conventional electrowinning cell.
author	CIFUENTES,GERARDO BUSTOS,PABLO HERNÁNDEZ,JOSÉ GUAJARDO,NICOLÁS
author_facet	CIFUENTES,GERARDO BUSTOS,PABLO HERNÁNDEZ,JOSÉ GUAJARDO,NICOLÁS
author_sort	CIFUENTES,GERARDO
title	ZINC ELECTROWINNING USING REACTIVE ELECTRODIALYSIS (RED)
title_short	ZINC ELECTROWINNING USING REACTIVE ELECTRODIALYSIS (RED)
title_full	ZINC ELECTROWINNING USING REACTIVE ELECTRODIALYSIS (RED)
title_fullStr	ZINC ELECTROWINNING USING REACTIVE ELECTRODIALYSIS (RED)
title_full_unstemmed	ZINC ELECTROWINNING USING REACTIVE ELECTRODIALYSIS (RED)
title_sort	zinc electrowinning using reactive electrodialysis (red)
publisher	Sociedad Chilena de Química
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072014000200020
work_keys_str_mv	AT cifuentesgerardo zincelectrowinningusingreactiveelectrodialysisred AT bustospablo zincelectrowinningusingreactiveelectrodialysisred AT hernandezjose zincelectrowinningusingreactiveelectrodialysisred AT guajardonicolas zincelectrowinningusingreactiveelectrodialysisred
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ZINC ELECTROWINNING USING REACTIVE ELECTRODIALYSIS (RED)

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