Chemical Interactions of Dross with Water and Water Vapor in Aluminum Scrap Remelting

• Narayanan Ramesh

  Department of Materials Science and Engineering, The Ohio State University

• Sahai Yogeshwar

  Department of Materials Science and Engineering, The Ohio State University

Bibliographic Information

Other Title

• Chemical Interactions of Dross with Wat

Abstract

Remelting of Aluminum alloys such as Used Beverage Container (UBC) is done under a cover of molten salt flux based on NaCl–KCl. After the remelting process is over, the used flux (called dross) reacts with water vapor to produce gaseous emissions. Dross is also leached by dissolving in water and subsequently crystallized to regenerate the salt flux for reuse. This leaching process also generates emissions. The calculations indicate that the trace components, such as AlN and Al₄C₃ present in the dross react with water (or water vapor) to produce NH₃ (g) and CH₄ (g) in quantities greater than HCl (g) or HF (g) generated from reactions of NaCl, KCl, and NaF with water or water vapor.

Journal

• Materials Transactions, JIM

  Materials Transactions, JIM 38 (1), 85-88, 1997

  The Japan Institute of Metals

Keywords

• aluminum recycling
• remelting
• dross
• thermodynamic calculations
• chemical interactions

Details

• CRID: 1390282679223347968
• NII Article ID: 130003422494
• NII Article ID: 10002451623
• NII Book ID: AA10699969
• DOI: 10.2320/matertrans1989.38.85
• COI: 1:CAS:528:DyaK2sXhslemt7o%3D
• ISSN: 2432471X
• ISSN: 09161821
• NDL BIB ID: 4209531
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4209531
• Web Site: https://www.jstage.jst.go.jp/article/matertrans1989/38/1/38_1_85/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed