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La Oroya (Electrolytic) zinc smelter

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29 November 2018

La Oroya (Electrolytic) zinc smelter

Report summary

The La Oroya smelter in Peru uses roast, leach, electrowin technology to produce slab zinc. After floatation to produce a zinc-silver concentrate, around 40% of the leach residues are treated in a Waelz kiln to enhance zinc recovery and to provide a fume feed to the indium plant, the remainder being dumped. The current capacity of the smelter is 43kt/a of slab zinc. The long term future of the smelter is currently in doubt due to a huge debt burden and ongoing environmental issues.

Table of contents

  • Summary
  • Key issues

Tables and charts

This report includes 13 images and tables including:

  • Detailed map
  • Flowsheet
  • Feed preparation
  • Roaster & Acid plant
  • Leaching & Purification
  • Tankhouse, melting & Casting
  • Production
  • Products

What's included

This report contains:

  • Document

    La Oroya zinc smelter.xls

    XLS 460.00 KB

  • Document

    La Oroya (Electrolytic) zinc smelter

    PDF 1.01 MB

  • Document

    La Oroya (Electrolytic) zinc smelter

    ZIP 1.09 MB

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