Asset report

Tres Marias zinc smelter

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Report summary

The Tres Marias Smelter was built to treat the oxide/silicate concentrate from the wholly owned Vazante open pit mines (calamine). Production commenced in 1969 with a capacity of 10kt/a. In the late 1980s a new pressure filtration plant for leach residues, engineered by Bokola, was installed to improve leach extraction. By several expansions capacity had reached 80kt/a by 1993. Reserves at the Vazante mine have gradually been depleted and it has now become necessary to mine underground,...

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  • Document

    Tres Marias zinc smelter

    PDF 807.68 KB

  • Document

    Tres Marias zinc smelter.xls

    XLS 522.50 KB

Table of contents

  • Key facts
  • Summary and key issues
  • Projects
  • Location maps
  • Participation
    • Other
  • Products
  • Costs
  • Economic assumptions

Tables and charts

This report includes 14 images and tables including:


  • Location maps: Image 1
  • Flowsheet
  • Products: Image 1
  • Costs: Image 1


  • Key facts: Table 1
  • Participation: Table 1
  • Process overview: Table 1
  • Process overview: Table 2
  • Process overview: Table 3
  • Process overview: Table 4
  • Products: Table 1
  • Products: Table 2
  • Costs: Table 1
  • Economic assumptions: Table 1

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