巻号一覧
89 巻 (2025)
- 4 号 p. 169-
- 3 号 p. 161-
- 2 号 p. 143-
- 1 号 p. 1-
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論文
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大島 一真, 髙井良 優作, 川田 寛之, 山本 剛, 平郡 伸一, 岸田 昌浩原稿種別: 論文
2025 年 89 巻 4 号 p. 169-173
発行日: 2025/03/01
公開日: 2025/03/25
[早期公開] 公開日: 2025/02/28
ジャーナル フリー HTMLTo enhance Ni recovery from nickel sulfide (NiS), the effects of the metal addition on the Ni leaching using a copper oxidant in acidic solutions were investigated. The use of sodium borohydride (NaBH4) as a reducing agent as the pre-treatment enhanced the initial leaching rate. Additionally, the addition of elemental metals such as iron (Fe0) and tin (Sn0) during the leaching led to a substantial increase in the Ni leaching rate. The added metal reduced Cu2+ to Cu0 in the solution and deposited onto the NiS surface, which then removed nickel disulfide (NiS2), a substance that inhibits the Ni leaching, thereby promoting stable Ni leaching.
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