|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||PbZn 2020: The 9th International Symposium on Lead and Zinc Processing
||Increasing Current Efficiency To 93% In Jumbo Cellhouse At Vedanta’s HZL Tank House
||Pankaj Kumar Sharma, Chandru Chendurpandian, Ameet Wali, Ravi Kumar Ravada, Lokesh Gurjar
|On-Site Speaker (Planned)
||Pankaj Kumar Sharma
In early 2015, it became apparent that with changing concentrate feeds, the impurity load projected for Hindustan Zinc starting in 2017 and beyond would quadruple and overwhelm the current Leaching-Electrolysis process. A project was started, following Six Sigma Standards, to select both optimal process and to evaluate the current Leaching-Electrolysis process. Effect of process parameters at Leaching-Electrolysis for the electrodeposition of zinc has been carried out & implemented. Influence of current density on the deposition process was also investigated. The efficiency of zinc deposition was affected by the temperature of cells, Gypsum section pH, Acidity of electrolyte & neutral leaching pH etc. There are many elements which are detrimental to the current efficiency in the electrolysis of zinc sulphate. This paper describes the project methodology, the impact on the plant and potential optimization for HZL’s Leaching-Electrolysis process.