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La Oroya (Electrolytic) zinc smelter

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09 June 2017

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

  • Key facts
    • Summary
    • Key issues
  • Location maps
  • Participation
  • Process overview
  • Products
  • Costs
  • Timeline
  • Economic assumptions

Tables and charts

This report includes 14 images and tables including:

  • Key facts: Table 1
  • Detailed map
  • Participation: Table 1
  • Flowsheet
  • Feed preparation
  • Roaster & Acid plant
  • Leaching & Purification
  • Tankhouse, melting & Casting
  • Production
  • Products: Table 1
  • Products
  • Costs: Image 1
  • Costs: Table 1
  • Economic assumptions: Table 1

What's included

This report contains:

  • Document

    La Oroya zinc smelter.xls

    XLS 460.00 KB

  • Document

    La Oroya zinc smelter

    PDF 974.02 KB

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