書誌事項
- タイトル別名
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- A sulfidation Process for Recovering Ni from an Acidic Spent Catalyst, and the Chemical Characterization of the Sulfide Precipitates
- サンセイ ショクバイ ハイエキ カラ ノ リュウカブツホウ ニ ヨル Ni カイシュウ プロセス ト リュウカ チンデンブツ ノ カガク トクセイ
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抄録
<p>This study proposed a sulfidation process as a practical approach for recovering Ni from the acidic spent catalyst. Ni can be obtained by a precipitate as NiS particle by adding Na2S in the acidic media (pH 3). In the presence of chelate agents, 2,2’-bipyridine (bpy), the percentage value of Ni recovery by a hydroxylation process was only 46%, and the recovery value improved to 88% by the sulfidation. XAFS analyses for the precipitates showed that more than 60% of NiS from chelate-free media was oxidized to NiSO4; while about 80% of Ni remained as NiS when it was generated in the bpy-containing condition. However, Ni was also bound with bpy in the NiS particle, revealed by FT-IR spectra. From these results, , in the spent catalyst, Ni would be precipitated as an S-Ni-bpy cluster by the sulfidation process.</p>
収録刊行物
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- 粉体工学会誌
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粉体工学会誌 60 (10), 600-606, 2023-10-10
一般社団法人 粉体工学会
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詳細情報 詳細情報について
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- CRID
- 1390016880932838400
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- NII書誌ID
- AN00222757
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- ISSN
- 18837239
- 03866157
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- NDL書誌ID
- 033116282
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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
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- 抄録ライセンスフラグ
- 使用不可