No Cover Image

Journal article 809 views 789 downloads

An investigation of the failure mechanisms of lead anodes in copper electrowinning cells

A. Elrefaey, Y. Gu, J.D. James, C. Kneen, I. Crabbe, Johann Sienz Orcid Logo

Engineering Failure Analysis, Volume: 108, Start page: 104273

Swansea University Author: Johann Sienz Orcid Logo

  • elrefaey2019.pdf

    PDF | Accepted Manuscript

    ©2019 All rights reserved. All article content, except where otherwise noted, is licensed under a Creative Commons Attribution Non-Commercial No Derivatives License (CC-BY-NC-ND)

    Download (9.01MB)

Check full text

DOI (Published version): 10.1016/j.engfailanal.2019.104273

Abstract

Lead alloys are used as permanent anodes for electrowinning of base metals such as copper. The corrosion of anodes is costly because of their relatively short lifetime, material cost, and their impact on cathodic deposit quality. Failure of anodes sometimes occurs before the predicted lifetime, havi...

Full description

Published in: Engineering Failure Analysis
ISSN: 1350-6307
Published: Elsevier BV 2020
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa52707
Tags: Add Tag
No Tags, Be the first to tag this record!
first_indexed 2019-11-12T13:17:29Z
last_indexed 2020-11-20T04:07:50Z
id cronfa52707
recordtype SURis
fullrecord <?xml version="1.0"?><rfc1807><datestamp>2020-11-19T14:33:19.4787676</datestamp><bib-version>v2</bib-version><id>52707</id><entry>2019-11-12</entry><title>An investigation of the failure mechanisms of lead anodes in copper electrowinning cells</title><swanseaauthors><author><sid>17bf1dd287bff2cb01b53d98ceb28a31</sid><ORCID>0000-0003-3136-5718</ORCID><firstname>Johann</firstname><surname>Sienz</surname><name>Johann Sienz</name><active>true</active><ethesisStudent>false</ethesisStudent></author></swanseaauthors><date>2019-11-12</date><deptcode>FGSEN</deptcode><abstract>Lead alloys are used as permanent anodes for electrowinning of base metals such as copper. The corrosion of anodes is costly because of their relatively short lifetime, material cost, and their impact on cathodic deposit quality. Failure of anodes sometimes occurs before the predicted lifetime, having a negative impact on the efficiency and economics of the electrowinning process.This study investigates some recently failed lead alloy anodes. These failures occurred after a short period of service in a commercially operating electrowinning tank house. The samples were metallographically investigated with the help of an optical, three-dimensional microscope and a scanning electron microscope (SEM) equipped with Energy-Dispersive X-ray Spectroscopy (EDS) analysis. It is suggested that the reasons for failure are improper operational issues in the tank house, especially the level of manganese content in the electrolyte, which leads to unexpected corrosion.</abstract><type>Journal Article</type><journal>Engineering Failure Analysis</journal><volume>108</volume><journalNumber/><paginationStart>104273</paginationStart><paginationEnd/><publisher>Elsevier BV</publisher><placeOfPublication/><isbnPrint/><isbnElectronic/><issnPrint>1350-6307</issnPrint><issnElectronic/><keywords>Lead anodes, Manganese, Electrowinning, Copper, Microstructure</keywords><publishedDay>1</publishedDay><publishedMonth>1</publishedMonth><publishedYear>2020</publishedYear><publishedDate>2020-01-01</publishedDate><doi>10.1016/j.engfailanal.2019.104273</doi><url/><notes/><college>COLLEGE NANME</college><department>Science and Engineering - Faculty</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>FGSEN</DepartmentCode><institution>Swansea University</institution><apcterm/><lastEdited>2020-11-19T14:33:19.4787676</lastEdited><Created>2019-11-12T09:35:38.7641146</Created><path><level id="1">Faculty of Science and Engineering</level><level id="2">School of Engineering and Applied Sciences - Uncategorised</level></path><authors><author><firstname>A.</firstname><surname>Elrefaey</surname><order>1</order></author><author><firstname>Y.</firstname><surname>Gu</surname><order>2</order></author><author><firstname>J.D.</firstname><surname>James</surname><order>3</order></author><author><firstname>C.</firstname><surname>Kneen</surname><order>4</order></author><author><firstname>I.</firstname><surname>Crabbe</surname><order>5</order></author><author><firstname>Johann</firstname><surname>Sienz</surname><orcid>0000-0003-3136-5718</orcid><order>6</order></author></authors><documents><document><filename>52707__15860__9392178f97254513b4d66094f6cd6d29.pdf</filename><originalFilename>elrefaey2019.pdf</originalFilename><uploaded>2019-11-12T09:43:26.4609864</uploaded><type>Output</type><contentLength>9442557</contentLength><contentType>application/pdf</contentType><version>Accepted Manuscript</version><cronfaStatus>true</cronfaStatus><embargoDate>2020-11-14T00:00:00.0000000</embargoDate><documentNotes>&#xA9;2019 All rights reserved. All article content, except where otherwise noted, is licensed under a Creative Commons Attribution Non-Commercial No Derivatives License (CC-BY-NC-ND)</documentNotes><copyrightCorrect>true</copyrightCorrect><language>eng</language><licence>http://creativecommons.org/licenses/by-nc-nd/4.0/</licence></document></documents><OutputDurs/></rfc1807>
spelling 2020-11-19T14:33:19.4787676 v2 52707 2019-11-12 An investigation of the failure mechanisms of lead anodes in copper electrowinning cells 17bf1dd287bff2cb01b53d98ceb28a31 0000-0003-3136-5718 Johann Sienz Johann Sienz true false 2019-11-12 FGSEN Lead alloys are used as permanent anodes for electrowinning of base metals such as copper. The corrosion of anodes is costly because of their relatively short lifetime, material cost, and their impact on cathodic deposit quality. Failure of anodes sometimes occurs before the predicted lifetime, having a negative impact on the efficiency and economics of the electrowinning process.This study investigates some recently failed lead alloy anodes. These failures occurred after a short period of service in a commercially operating electrowinning tank house. The samples were metallographically investigated with the help of an optical, three-dimensional microscope and a scanning electron microscope (SEM) equipped with Energy-Dispersive X-ray Spectroscopy (EDS) analysis. It is suggested that the reasons for failure are improper operational issues in the tank house, especially the level of manganese content in the electrolyte, which leads to unexpected corrosion. Journal Article Engineering Failure Analysis 108 104273 Elsevier BV 1350-6307 Lead anodes, Manganese, Electrowinning, Copper, Microstructure 1 1 2020 2020-01-01 10.1016/j.engfailanal.2019.104273 COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2020-11-19T14:33:19.4787676 2019-11-12T09:35:38.7641146 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised A. Elrefaey 1 Y. Gu 2 J.D. James 3 C. Kneen 4 I. Crabbe 5 Johann Sienz 0000-0003-3136-5718 6 52707__15860__9392178f97254513b4d66094f6cd6d29.pdf elrefaey2019.pdf 2019-11-12T09:43:26.4609864 Output 9442557 application/pdf Accepted Manuscript true 2020-11-14T00:00:00.0000000 ©2019 All rights reserved. All article content, except where otherwise noted, is licensed under a Creative Commons Attribution Non-Commercial No Derivatives License (CC-BY-NC-ND) true eng http://creativecommons.org/licenses/by-nc-nd/4.0/
title An investigation of the failure mechanisms of lead anodes in copper electrowinning cells
spellingShingle An investigation of the failure mechanisms of lead anodes in copper electrowinning cells
Johann Sienz
title_short An investigation of the failure mechanisms of lead anodes in copper electrowinning cells
title_full An investigation of the failure mechanisms of lead anodes in copper electrowinning cells
title_fullStr An investigation of the failure mechanisms of lead anodes in copper electrowinning cells
title_full_unstemmed An investigation of the failure mechanisms of lead anodes in copper electrowinning cells
title_sort An investigation of the failure mechanisms of lead anodes in copper electrowinning cells
author_id_str_mv 17bf1dd287bff2cb01b53d98ceb28a31
author_id_fullname_str_mv 17bf1dd287bff2cb01b53d98ceb28a31_***_Johann Sienz
author Johann Sienz
author2 A. Elrefaey
Y. Gu
J.D. James
C. Kneen
I. Crabbe
Johann Sienz
format Journal article
container_title Engineering Failure Analysis
container_volume 108
container_start_page 104273
publishDate 2020
institution Swansea University
issn 1350-6307
doi_str_mv 10.1016/j.engfailanal.2019.104273
publisher Elsevier BV
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 1
active_str 0
description Lead alloys are used as permanent anodes for electrowinning of base metals such as copper. The corrosion of anodes is costly because of their relatively short lifetime, material cost, and their impact on cathodic deposit quality. Failure of anodes sometimes occurs before the predicted lifetime, having a negative impact on the efficiency and economics of the electrowinning process.This study investigates some recently failed lead alloy anodes. These failures occurred after a short period of service in a commercially operating electrowinning tank house. The samples were metallographically investigated with the help of an optical, three-dimensional microscope and a scanning electron microscope (SEM) equipped with Energy-Dispersive X-ray Spectroscopy (EDS) analysis. It is suggested that the reasons for failure are improper operational issues in the tank house, especially the level of manganese content in the electrolyte, which leads to unexpected corrosion.
published_date 2020-01-01T04:05:14Z
_version_ 1763753396179828736
score 11.017776

Similar Items