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Quantitative Analysis on Sulfidic and Oxidic Dissolutions of Copper in Matte Smelting Slag

Research Project

Project/Area Number 05650721
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field Metal making engineering
Research InstitutionIwate University

Principal Investigator

TAKEDA Yoichi  Iwate University, Faculty of Engineering, Associate Professor, 工学部, 助教授 (30125603)

Project Period (FY) 1993 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 1995: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1994: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 1993: ¥800,000 (Direct Cost: ¥800,000)
KeywordsCopper smelting / Slag / Matte / Slag Loss / Matte Smelting / Oxidic Dissolution / Sulfidic Dissolution / Activity / 銅製錬 / マット溶錬
Research Abstract

In order to estimate sulfidic and oxidic dissolution of copper in matte smelting slags, following equilibrium experiments have been performed. The experimental results and heat balance of copper smelting suggest that the optimum copper content in matte produced in matte smelting furnace is 70%.
(1) The equilibrium experiments between FeO_X-CaO-SiO_2 slag and molten copper have been carried out from 1200 to 1400゚C to determine the activity coefficient of CuO_<0.5> Consequently, we can calculate the oxidic copper solubility in the FeO_X-CaO-SiO_2 slag from the experimental results. The activity coefficient varies from 1 to 15 depending on the slag composition.
(2) The experimental results of the slag-matte-copper metal under iron saturation lead to the activity coefficient of CuS_<0.5> in the Cu-Fe-S-O matte and the relation between sulfur content in slag and the activity coefficient of CuS_<0.5> in slag.
(3) The copper solubility in the slag equilibrated with matte have been measured under a corrent of 10% SO_2. The sulfidic and oxidic dissolutions of copper are estimated from the experimental results of 1,2 and 3.
4. Heat balance of copper smelting has been calculated. The optimum copper content in matte produced in matte smelting furnace is 70% in view of energy consumption and copper loss in slag.

Report

(4 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • 1993 Annual Research Report
  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] Yoichi Takada: "The Effects on Oxidic Disso lietion of Copper in Slay" Metallurgical Processes for the Early Twenty-First Century, TMS. 1. 20-30 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 武田要一: "鋼転炉のエネルギー収支" 基幹金属のエネルギー高効率利用による次世代製練法開発に関する基礎研究報告書. (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 武田要一 R.Ghasem, 三文字美彦: "マット平衡する鉄シリケートスラグへの銅の溶解度" 資源と素材. (発表予定).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 武田要一: "Fe-Cu-S-O-SiO_2(-MgO)系の酸素-硫黄ポテンシャル" 資源と素材. (発表予定).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Yoichi Takeda: "The Effects on Oxidic Dissolution of Copper in Slag" Metallurgical Processes for the Early Twenty First Century, TMS. Vol.1. 20-30 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Yoichi Takeda: "Energy Balance on Copper Converter" Report on Fundamental Rescarch of Development for new base metal smelting system with high enery effficiency. (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Yoichi Takeda: "Roghani Ghasem, Yoshihiko Sanmonji, Copper Solubility in Iron Silicate Slag with Matte Existence" To be published in Shigen-to-Sozai.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Yoichi Takeda: "Oxygen-Sulfur Potential Diagram for the System of Fe-Cu-S-O-SiO_2 (-MgO)" To be published in Shigen-to-Sozai.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 武田要一: "銅転炉のエネルギー収支" 基幹金属のエネルギー高効率利用による次世代製錬法開発に関する基礎研究報告書. (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] Yoichi Takeda: "Copper Solubility in Slags" Proceedings of Second Workshop on Engineeing for Enrironmental Protection in the Mining and Energy Industries.(1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Yoichi Takeda: "The Effects of Basicity on Oxidic Dissolution of Copper in Slag" Metallurgical Processes for the Early Twenty-First Century. 1. 453-466 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Yoichi Takeda: "Distribution Equilibrium of Silver in Copper Smelting System" Proceedings of First International Conference on Processing Materials for Properties. 357-360 (1993)

    • Related Report
      1993 Annual Research Report

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Published: 1993-04-01   Modified: 2016-04-21  

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