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Liquid-liquid extraction behavior of arsenic using ethereal compounds in acidic media
http://hdl.handle.net/10458/6887
http://hdl.handle.net/10458/6887dfbaa2b3-3995-471a-9012-464f3fb3c8a0
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
本文 (685.9 kB)
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| Item type | その他 / Others(1) | |||||
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| 公開日 | 2020-06-22 | |||||
| タイトル | ||||||
| タイトル | Liquid-liquid extraction behavior of arsenic using ethereal compounds in acidic media | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Liquid-liquid extraction, cyclopentyl methyl ether, arsenic, mineral acid | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_1843 | |||||
| 資源タイプ | other | |||||
| 著者 |
Matsuo, Naoki
× Matsuo, Naoki× 大島, 逹也× 大栄, 薫× 馬場, 由成× Otsuki, Noriyasu |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Management of the quantity of toxic arsenic in water as well as in the industrial field is an important issue for human health. Liquid-liquid extraction is one of the most efficient separation techniques to remove toxic chemical species from aqueous media. In this study, extraction of As（III） and As（V） from acidic media was studied using ethereal compounds cyclopentyl methyl ether （CPME） and dibutyl carbitol （DBC）. The extraction test was carried out by the batchwise method. An aqueous solution containing 0.1 mM arsenic [As（III） or As（V）] was prepared using 0.1–8.0 M mineral acid （hydrochloric acid, nitric acid or sulfuric acid）. Equal volumes of the aqueous solution and CPME （10 cm3） were mixed and shaken for 24 h at 30 °C. After phase separation, the concentration of arsenic in the aqueous phase was determined using an atomic absorption photometer to calculate the extraction percentage. In the hydrochloric acid medium, the extraction of As（III） using CPME increased with increasing concentrations of hydrochloric acid. Conversely, As（III） was not extracted at all in nitric acid and sulfuric acid. Additionally, As（V） was not extracted at all in any acidic medium. The extraction behavior of CPME was compared with that of the commercial ethereal extractant DBC. | |||||
| 言語 | en | |||||
| 書誌情報 |
en : 5th International Arsenic Symposium in MIYAZAKI 2018 p. 9-10, 発行日 2018-06 |
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| 出版者 | ||||||
| 出版者 | University of Miyazaki, IRISH | |||||
| 言語 | en | |||||
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| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
