Evaluation of Selective Separation of Phosphorous Components from Plating Baths Using Schwertmannite

• Okido Masazumi

  Department of Materials Science and Engineering, Graduate School of Engineering, Nagoya University

• Takakuwa Toshihiro

  Department of Materials Science and Engineering, Graduate School of Engineering, Nagoya University

• Eskandarpour Akbar

  Department of Materials Science and Engineering, Graduate School of Engineering, Nagoya University

• Ichino Ryoichi

  Department of Materials Science and Engineering, Graduate School of Engineering, Nagoya University

• Iwai Kazuhiko

  Department of Materials Science and Engineering, Graduate School of Engineering, Nagoya University

Abstract

Selective separation of phosphorous ion compounds in plating baths is of great interest. Schwertmannite, found as a strong P-sorbent in our pervious works, was used for this purpose as an inorganic chemical adsorbent. The effect of pH as a significant operating parameter on P-adsorption on schwertmannite in this process as well as on the stability of schwertmannite was thoroughly investigated. The experimental results showed that the hypophosphite H₂PO₂⁻ was relatively difficult to exchange with sulfate units in schwertmannite in comparison with monoorthophpsphite H₂PO₃⁻ and monoorthophosphate H₂PO₄⁻. Moreover, batch kinetic trials revealed that the obtained data was fairly fitted to pseudo-second-order models.

Journal

• ISIJ International

  ISIJ International 48 (5), 685-689, 2008

  The Iron and Steel Institute of Japan

Keywords

• phosphorous
• plating baths
• schwertmannite
• selective separation

Details

• CRID: 1390282681463127424
• NII Article ID: 10027028652
• NII Book ID: AA10680712
• DOI: 10.2355/isijinternational.48.685
• ISSN: 13475460
• ISSN: 09151559
• Web Site: http://www.jstage.jst.go.jp/article/isijinternational/48/5/48_5_685/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed