L-アスパラギン酸の冷却晶析に及ぼす超音波照射の影響

書誌事項

タイトル別名
  • Effects of Ultrasound Irradiation on Cooling Crystallization Process of L-aspartic Acid
  • L-アスパラギンサン ノ レイキャクショウセキ ニ オヨボス チョウオンパ ショウシャ ノ エイキョウ

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抄録

An ultrasound (US) irradiation technique was applied to obtain the rod-like L-aspartic acid crystal in cooling crystallization process. In experiments, the 20 kHz horn-type transducer was installed vertically into the aqueous solution. Experimental results confirmed that arithmetic mean and ratio of breadth and length of a formed crystal can be reasonably controlled by US intensity and irradiation time. The high yield of rod-like crystals was obtained under the conditions of 46 W/cm2 US intensity and 1 min irradiation time. SEM and XRD analysis demonstrated that all crystals formed in this study were plate like α-form, and that rod-like crystals formed by US irradiation were revealed to be the polysynthetic twin composed of small size plate-like crystals.

収録刊行物

  • 粉体工学会誌

    粉体工学会誌 51 (3), 124-130, 2014

    一般社団法人 粉体工学会

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