Asset Report

Naoshima copper smelter



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Report summary

The Naoshima Smelter was built in 1917 to treat domestic copper concentrates using a green fed reverberatory furnace with a capacity of 3.6kt/a copper.  In 1939 capacity was increased to 12kt/a and an acid plant to treat converter offgas was installed.  Capacity was further increased to 36kt/a anode in 1957 and a 220t/d Lurgi acid plant was added in 1958.  By 1968 smelter capacity had been increased to 72kt/a copper and in 1969 a calcine fed reverberatory furnace, a 720t/d Lurgi acid plant...

What's included

This report contains

  • Document

    Naoshima copper smelter

    PDF 619.20 KB

  • Document

    Naoshima copper smelter.xls

    XLS 484.50 KB

Table of contents

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

Tables and charts

This report includes 13 images and tables including:


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


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

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