Recovery of Calcium from BF Slag and Synthesis of Zeolite A Using Its Residue
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概要
- 論文の詳細を見る
The elution and recovery of Ca from blast furnace slag and the alkali hydrothermal synthesis of zeolite A using the residue from the elution treatment were investigated using a ball-milling-type reaction vessel. The superior elution was obtained by using citric and formic acid solutions from which Ca could be selectively eluted from the slag. Whereas hydrochloric acid solution and ion-exchanged water were ineffective for Ca elution. Ca ions eluted in the solution were recovered as calcium formate by evaporation of water. From the formic acid eluted slag residue after three elution treatment cycles of the slag for 7.2 ks, zeolite A was synthesized in 1 mol/L NaOH solution with a reaction time of 86.3 ks at 343 K, without the addition of any other materials.
- 社団法人 日本鉄鋼協会の論文
- 2011-06-15
著者
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成島 尚之
Department Of Materials Processing Tohoku University
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井口 〓孝
Department Of Materials Processing Tohoku University
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井口 泰孝
東北大学大学院工学研究科
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Murakami Taichi
Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
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Ouchi C
Department Of Materials Processing Tohoku University
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Ouchi Chiaki
Tohoku University
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Murakami Taichi
Department Of Materials Processing Tohoku University
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Murakami Taichi
Department Of Chemistry And Materials Science Tokyo Institute Of Technology
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Narushima Takayuki
Department Of Materials Processing Graduate School Of Engineering Tohoku University
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Sugano Yoshiyuki
Department Of Metallurgy Faculty Of Engineering Tohoku University
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Ouchi Chiaki
Department Of Metallurgy Tohoku University
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Ouchi Chiaki
Department Of Materials Processing Graduate School Of Engineering Tohoku University
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SUGANO Yoshiyuki
Tohoku University. Now at JFE Steel Corp.
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IGUCHI Yasutaka
Tohoku University
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