Activities of lead and zinc oxides in CaO-SiO2-FeO x-AlO1.5 slag

Katsunori Yamaguchi, Masami Kudo, Yusuke Kimura, Shigeru Ueda, Yoichi Takeda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The zinc, lead and alumina contents in copper smelting slag are increasing with the increase in waste recycling. The recovery of base metals such as lead and zinc from copper converter slag is important from both an economical and environmental perspective. As a fundamental study of the metal recovery by reduction process, activity coefficients of ZnO and PbO in the CaO-SiO 2-FeOx-5mass%AlO1.5 slag under iron saturation at 1573K are derived from the data of slag-metal equilibrium experiments. On the basis of the obtained data, the activity coefficients of ZnO and PbO in the CaO-SiO2-FeOx-5mass%AlO1.5 slag were compared with those of the CaO-SiO2-FeOx ternary system. Addition of alumina increases activities coefficient of ZnO and PbO in SiO2 rich side of the slag, and decreases them in CaO rich side.

Original languageEnglish
Title of host publicationSohn International Symposium
Subtitle of host publicationAdvanced Processing of Metals and Materials - Proceedings of the International Symposium
Pages199-208
Number of pages10
Publication statusPublished - 2006 Dec 1
Externally publishedYes
Event2006 TMS Fall Extraction and Processing Division: Sohn International Symposium - San Diego, CA, United States
Duration: 2006 Aug 272006 Aug 31

Publication series

Name2006 TMS Fall Extraction and Processing Division: Sohn International Symposium
Volume1

Conference

Conference2006 TMS Fall Extraction and Processing Division: Sohn International Symposium
CountryUnited States
CitySan Diego, CA
Period06/8/2706/8/31

Keywords

  • Activity coefficient
  • Copper smelting
  • Slag cleaning

ASJC Scopus subject areas

  • Engineering(all)

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