Heat content of liquid Fe-Cu-Si alloys formed in the melting treatment process of domestic waste incineration residue

Toshi Washizu, Tetsuya Nagasaka, Mitsutaka Hino

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Some new melting processes for the ash have been developed to solve the problems on increasing volume of ash generated from municipal waste incinerators. The metal phase formed in this melting process generally consists of Fe-Cu-Si-P-C containing a small amount of other heavy metals, but their phase equilibria and physico-chemical properties are unknown. The present work aimed at determining the thermochemical properties of liquid Fe-Cu-Si alloys, which establish the basic system in this melting process. The heat contents of liquid Fe, Fe-Cu and Fe-Cu-Si alloys have been directly measured with a drop calorimeter at mainly 2073 K in the present work. The observed heat content and the enthalpy of mixing of the alloys were assessed by a thermodynamic model. The input energy which should be supplied to melt the metal phase in the new melting treatment process was also discussed.

Original languageEnglish
Pages (from-to)281-287
Number of pages7
JournalZeitschrift fuer Metallkunde/Materials Research and Advanced Techniques
Volume93
Issue number4
DOIs
Publication statusPublished - 2002 Apr

Keywords

  • Calorimetry
  • Enthalpy
  • Fe-Cu-Si alloy
  • Heat content
  • Waste treatment

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

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