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- Tanaka Yasumitsu
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
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- Zhang Qiwu
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
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- Saito Fumio
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
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抄録
Recording media (MD) was subjected to peeling with the disk having well-arranged pins, followed by acid leaching with HCl and HNO3 solutions, respectively, under irradiation of ultrasound to investigate Tb, Co and Fe from the MD sample. The result was compared with those in the leaching conducted at room temperature and 60°C without ultrasound irradiation. The acid leaching of metals is accelerated by irradiating ultrasound, and is accomplished by 100% within 1 hour, irrespective of whether HCl or HNO3 solution (1 N) is used. High yield extraction is not attained at all in the leaching without ultrasound irradiation over the same extraction time. The yield increases with an increase in the acid concentration, but it levels off beyond 1 N. Temperature for the leaching is also an important factor; however, ultrasound irradiation is the most effective means for extracting metals from the sample.
収録刊行物
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- JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
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JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 35 (2), 173-177, 2002
公益社団法人 化学工学会
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詳細情報 詳細情報について
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- CRID
- 1390001204566406400
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- NII論文ID
- 10009395960
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- NII書誌ID
- AA00709658
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- COI
- 1:CAS:528:DC%2BD38XhslOrtLY%3D
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- ISSN
- 18811299
- 00219592
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- NDL書誌ID
- 6074567
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可