Purification of Aluminum Nitrate Nonahydrate by Melt Crystallization
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概要
- 論文の詳細を見る
The objective of our study is to investigate the effect of melt crystallization on inorganic hydrate for purification of crystals including impurity. Melt crystallization are applied widely in chemical and food industry, to purify organic crystals by separating impurity inside the crystals. The target crystals are mainly organic crystals, however some inorganic crystals are considered for purification by melt crystallization, because of having lower melting point as hydrate crystals. Therefore we prepared hydrate crystals including impurity and carried out melt crystallization to investigate the purification mechanism on inorganic crystals. Aluminum nitrate nonahydrate was selected as purified target and strontium nitrate was selected as liquid impurity. As solid impurity, we selected barium nitrate. In conclusion, liquid impurity in target crystals was removed by sweating and washing with melt. Moreover, it was considered that purification mechanism is different depending on the state of impurity, and melting crystallization becomes an effective tool for purification the inorganic hydrate crystals.
- 社団法人 化学工学会の論文
- 2011-03-01
著者
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Kumashiro Mizuki
Department of Applied Chemistry, Graduate School of Advanced Science and Engineering, Waseda Univers
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Izumi Yoshinori
Department of Applied Chemistry, Graduate School of Advanced Science and Engineering, Waseda Univers
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Fujita Yusuke
Department of Applied Chemistry, Graduate School of Advanced Science and Engineering, Waseda Univers
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Hirasawa Izumi
Department Of Applied Chemistry Graduate School Of Advanced Science And Engineering Waseda Universit
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Hirasawa Izumi
Department Of Applied Chemistry Graduate School Of Advanced Science And Engineering Waseda Universit
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Hoshino Takuya
Department Of Applied Chemistry Graduate School Of Advanced Science And Engineering Waseda Universit
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Kumashiro Mizuki
Department Of Applied Chemistry Graduate School Of Advanced Science And Engineering Waseda Universit
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Fujita Yusuke
Department Of Applied Chemistry Graduate School Of Advanced Science And Engineering Waseda Universit
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Izumi Yoshinori
Department Of Applied Chemistry Graduate School Of Advanced Science And Engineering Waseda Universit
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