Asset report

Annaka zinc smelter

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Report summary

The Annaka zinc smelter in Japan uses roast-leach-electrowin technology, with the leach residue being treated by a Waelz kiln. The current capacity is 139kt/a slab zinc and there are currently no plans to increase this. The smelter is "Roaster limited" and cannot produce enough calcine. A separate roasting facility is therefore located at Onahama with calcine being sent by train to supply Annaka.

What's included

This report contains

  • Document

    Annaka zinc smelter.xls

    XLS 545.00 KB

  • Document

    Annaka zinc smelter

    PDF 721.91 KB

Table of contents

Tables and charts

This report includes 14 images and tables including:


  • Detailed map
  • Flowsheet
  • Costs: Image 1
  • Production


  • Key facts: Table 1
  • Participation: Table 1
  • Feed preparation
  • Roaster & Acid Plant
  • Leaching & Purification
  • Tankhouse, Melting & Casting
  • Costs: Table 1
  • Economic assumptions: Table 1
  • Products: Table 1
  • Products

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