Asset Report

Hachinohe (ISF) zinc smelter



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Report summary

The Hachinohe zinc smelter uses the Imperial Smelting Process (ISP) to make zinc. A process where the Imperial smelting Furnace (ISF) is the key unit operation simultaneously producing lead and zinc. Hachinohe is now the only ISP plant in Japan. The current capacity is 112kt/a slab zinc and there are currently no plans to expand this. Hachinohe is considered as one of, if not the best, example of ISP operation currently in operation. 

What's included

This report contains

  • Document

    Hachinohe zinc smelter.xls

    XLS 546.50 KB

  • Document

    Hachinohe zinc smelter

    PDF 637.59 KB

Table of contents

Tables and charts

This report includes 15 images and tables including:


  • Key facts: Table 1
  • Participation: Table 1
  • Costs: Table 1
  • Economic assumptions: Table 1
  • Feed Preparation
  • Sinter & Acid plants
  • Smelting Furnace
  • Refining
  • Casting
  • Products: Table 1
  • Products


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

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