, Volume 43, Issue 9, pp 20–26 | Cite as

Top-blown injection smelting and converting: The Mitsubishi process

  • T. Shibasaki
  • M. Hayashi
Gas Injection Technologie Overview


The Mitsubishi process is a continuous copper smelting and converting process comprising three steps—smelting of raw materials by injection, separation of slag and matte, and direct converting of high-grade matte. Since commercial operation began in 1974, the hearth productivity has been doubled, and several other improvements have been made, including higher-grade matte smelting and the treatment of various secondary materials. Because the Mitsubishi process is superior to the conventional process, it was decided to construct a larger unit of the Mitsubishi furnaces to replace the two existing smelter lines. This article discusses various technical considerations.


Magnetite Pressure Swing Adsorption Converter Slag Molten Bath Blister Copper 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© TMS 1991

Authors and Affiliations

  • T. Shibasaki
    • 1
  • M. Hayashi
    • 1
  1. 1.Naoshima Smelter and Refinery of Mitsubishi Materials CorporationUSA

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