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- 大島 達也
- 宮崎大学工学教育研究部応用物質化学プログラム担当
書誌事項
- タイトル別名
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- A Comprehensive Research of Extraction Solvents That Satisfy both Au(III) Extractability and Requirements of Properties for Industrial Operation
- 公開日
- 2023
- 資源種別
- journal article
- DOI
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- 10.4144/rpsj.70.18
- 公開者
- 一般社団法人 環境資源工学会
この論文をさがす
説明
<p>Ion solvation extraction has been used as a separation techniques for gold (Au(III)) from various metal ions in a hydrochloric acid media. Dibutyl carbitol (DBC) has been used as the most popular solvent to extract Au(III), while no better solvent has been found for many years. In the present review, the results of recent investigations by the authors to find valid solvents for ion solvation extraction are summarized. Ethers and ketones are suitable in view of the high extractability for Au(III) as well as the good properties including chemical stability. Ethers and ketones which have a smaller side chains and relatively higher polarity showed higher extractability, however, polar solvents would leak into the aqueous phase. Therefore suitable solvents with moderate polarity are narrowed down based on the balance between high extractability and low aqueous solubility. As the polarity affects the extractability, the logP value (octanol/water partition coefficient) and the Hansen solubility parameter would be one of the indexes for the Au(III) extractability. Solvents used in industrial processes are required to have not only high extractability but also good properties such as a low aqueous solubility and a high flash point. The comprehensive research revealed the requirements for solvents to extract Au(III) based on ion solvation. Additionally, several potential solvents which might replace DBC were suggested.</p>
収録刊行物
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- 環境資源工学
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環境資源工学 70 (1), 18-24, 2023
一般社団法人 環境資源工学会
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詳細情報 詳細情報について
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- CRID
- 1390297659209392896
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- ISSN
- 13499262
- 13486012
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- 本文言語コード
- ja
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- 資料種別
- journal article
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- データソース種別
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- JaLC
- Crossref
- KAKEN
- OpenAIRE
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- 抄録ライセンスフラグ
- 使用不可