Improvement of Nickel-Precipitation from Aqueous Nickel Solution by Sulfuration with Sodium Sulfides

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In order to recover nickel from waste plating solution, the precipitation of nickel by sulfuration was applied in the present study. Sodium sulfide (Na<SUB>2</SUB>S), sodium disulfide (Na<SUB>2</SUB>S<SUB>2</SUB>) and sodium tetrasulfide (Na<SUB>2</SUB>S<SUB>4</SUB>) were employed as sulfurating agents and were compared in terms of their ability to form Ni precipitates. From the results, it was found that the initial nickel concentration of 100 mg/dm<SUP>3</SUP> was reduced to 0.594–3.37 mg-Ni/dm<SUP>3</SUP> in the filtrate by addition of sulfurating agents. The average specific filtration resistance of the slurry produced by addition of a sulfurating agent was smaller than that of nickel hydroxide slurry; in particular, the lowest specific resistance of the slurry was found to be produced by addition of sodium tetrasulfide at a controlled pH 7 ± 1. The low filtration characteristic of nickel sulfide precipitates obtained by addition of sodium tetrasulfide was attributed to their particle size.

収録刊行物

  • Journal of chemical engineering of Japan

    Journal of chemical engineering of Japan 36(4), 493-498, 2003-04-01

    公益社団法人 化学工学会

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各種コード

  • NII論文ID(NAID)
    10013413066
  • NII書誌ID(NCID)
    AA00709658
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00219592
  • NDL 記事登録ID
    6514625
  • NDL 雑誌分類
    ZP1(科学技術--化学・化学工業)
  • NDL 請求記号
    Z53-R395
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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