書誌事項
- タイトル別名
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- Selective Separation of Cu, Zn and Ni by Sulfuration of Electroplating Wastewater
- メッキ ハイエキ チュウ ノ ドウ アエン オヨビ ニッケル ノ リュウカ ハンノウ ニ ヨル センタクテキ ブンリ カイシュウ
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Selective recovery of copper, zinc and nickel from electroplating wastewater was studied by precipitating the metal sulfides formed by sulfuration treatment. CuSO4, ZnSO4 and NiSO4 involved in model solutions and those of plating wastewater were adjusted to 100-120mg dm−3 of the initial metal concentration. Two kinds of sulfurating agents, sodium sulfide (Na2S) and sodium hydrosulfide (NaHS) of 6.8×10−2 mol dm−3, were employed.<br>As a result, it was found that Na2S was more effective for the separation of the metal sulfides precipitated. The formation of metal sulfides was dependent on the pH value of the solution. In the sulfuration process using Na2S, copper was first separated from the solution as copper sulfide in pH1.4-1.5, followed by the formation of zinc sulfide in pH2.4-2.5. Subsequently, nickel sulfide was precipitated after the formation of copper and zinc sulfides in the residual solution in pH5.5-6.0.<br>The same results of the formation behavior of copper sulfide, zinc sulfide and nickel sulfide in a simulated plating solution were obtained for those in an electroplating solution.<br>
収録刊行物
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- 表面技術
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表面技術 56 (10), 607-611, 2005
一般社団法人 表面技術協会
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詳細情報 詳細情報について
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- CRID
- 1390001204118009344
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- NII論文ID
- 130000149147
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- NII書誌ID
- AN1005202X
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- COI
- 1:CAS:528:DC%2BD2MXht12rsbvF
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- ISSN
- 18843409
- 09151869
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- NDL書誌ID
- 7706789
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可