{"title":"Synergistic Effects of LIX 64N and Fe3+During Copper Electrowinning","authors":"N. Pradhan, P. G. Krishna, Sudipta Das","doi":"10.1080/00202967.1998.11871203","DOIUrl":null,"url":null,"abstract":"The synergistic effects of additive LIX 64N and Fe 3+ during copper electrowinning from sulphate electrolyte were investigated. The results show that the combination of LIX 64N and Fe 3+ affects current efficiency, deposit quality, crystallographic orientation and surface morphology of cathode copper. Electrolysis parameters like current density, circulation rate and temperature have appreciable influence on the synergistic effects of LIX 64N and Fe 3+ . The presence of either L1X 64N or Fe 3+ favoured pyramidal growth whereas their combination promoted ridge type structure. Addition of thiourea not only improved the current efficiency but also the deposit quality.","PeriodicalId":23268,"journal":{"name":"Transactions of The Institute of Metal Finishing","volume":"76 1","pages":"96-100"},"PeriodicalIF":1.2000,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00202967.1998.11871203","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Transactions of The Institute of Metal Finishing","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1080/00202967.1998.11871203","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ELECTROCHEMISTRY","Score":null,"Total":0}
引用次数: 2
Abstract
The synergistic effects of additive LIX 64N and Fe 3+ during copper electrowinning from sulphate electrolyte were investigated. The results show that the combination of LIX 64N and Fe 3+ affects current efficiency, deposit quality, crystallographic orientation and surface morphology of cathode copper. Electrolysis parameters like current density, circulation rate and temperature have appreciable influence on the synergistic effects of LIX 64N and Fe 3+ . The presence of either L1X 64N or Fe 3+ favoured pyramidal growth whereas their combination promoted ridge type structure. Addition of thiourea not only improved the current efficiency but also the deposit quality.
期刊介绍：
Transactions of the Institute of Metal Finishing provides international peer-reviewed coverage of all aspects of surface finishing and surface engineering, from fundamental research to in-service applications. The coverage is principally concerned with the application of surface engineering and coating technologies to enhance the properties of engineering components and assemblies. These techniques include electroplating and electroless plating and their pre- and post-treatments, thus embracing all cleaning pickling and chemical conversion processes, and also complementary processes such as anodising. Increasingly, other processes are becoming important particularly regarding surface profile, texture, opacity, contact integrity, etc.
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