Development of chemical-free particle flocculation technique and application for material recycle

无化学颗粒絮凝技术开发及其在材料回收中的应用

• 批准号: 23310053
• 负责人: MORI Takamasa
• 金额: $ 12.81万
• 依托单位: Hosei University (2013)Nagoya University (2011-2012)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23310053/
• 关键词: ケミカルフリー; 電場; 粒子凝集; 直流電場; 凝集; 誘電分極; スラリー; 造粒; ケミカルフリー; 電場; 粒子凝集; 直流電場; 凝集; 誘電分極; スラリー; 造粒

We developed a chemical-free particle aggregation method using electrical field. DC and AC electrical field were applied to aqueous alumina suspensions and the effects of conditions of the applied electrical field on the aggregation behavior of the suspensions were investigated. It was shown that the DC electrical field can be useful for particle aggregation and the aggregates size increased with applied voltage and time, while AC electrical field showed no remarkable effect on the aggregation phenomenon. It was also found that decreasing the electrode distance should be effective to enhance the particle aggregation rather than increasing the applied voltage because too high voltage causes the increase in the suspension temperature and gas amount produced by electrolysis.

我们使用电场开发了一种无化学粒子聚集方法。将直流和交流电场应用于氧化铝悬浮液中，并研究了应用电场条件对悬浮液的聚集行为的影响。结果表明，直流电场可用于颗粒聚集，而聚集体大小随施加的电压和时间而增加，而AC电场对聚集现象没有明显影响。还发现，降低电极距离应该有效增强粒子聚集，而不是增加施加的电压，因为太高的电压会导致电解产生的悬架温度和气体量的升高。