Asset Report

Kokkola zinc smelter

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Outokumpu commenced zinc concentrate production in 1954 and initially the concentrates were sold to other European zinc smelters. The decision to build an electrolytic zinc plant at Kokkola was made in 1967 and the plant was commissioned with a capacity of 90kt/a at the end of 1969. Production capacity was expanded to 150kt/a in 1974 and included new Outokumpu purification technology, mechanised stripping in the tankhouse and a change from the Jarosite Process to the Conversion variant. ...

Table of contents

  • Summary
  • Key Issues
  • Emissions
  • 2020
  • 2019
  • 2014
  • 2012
  • 2010
  • Pre-2010
  • 2000-2009
  • 1990-1999
  • 1980-1989
  • 1970-1979
  • 1960-1969

Tables and charts

This report includes 9 images and tables including:

  • Kokkola Emission Intensity Quartile Ranking – total global production - tonnes Zn
  • Detailed map
  • Flowsheet
  • Flowsheet
  • Feed Preparation
  • Roaster and Acid Plant
  • Leaching and Purification
  • Tankhouse, Melting and Casting

What's included

This report contains:

  • Document

    Kokkola zinc smelter

    PDF 1.59 MB