期刊
CHEMPHYSCHEM
卷 16, 期 3, 页码 595-600出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cphc.201402761
关键词
demulsifier; magnetic properties; paramagnetism; surfactants; water-in-oil emulsion
资金
- National Natural Science Foundation [51173099]
- National High Technology Research and Development Program of China [2012AA030306]
- National Research Fund for Fundamental Key Projects [2011CB925700]
A magnetically recoverable and efficient demulsifier is shown to demulsify surfactant-stable water-in-oil emulsions rapidly. Ferroferric oxide (Fe3O4) particles are firstly coated by amorphous silicon dioxide (SiO2), and further functionalized with a commercial dodecyltrimethoxysilane solution (KH-1231). Owing to their paramagnetic properties, the demulsifier particles can be easily recovered with a magnet. Upon addition of demulsifier to emulsions and subsequent sonification, the supernatant becomes completely transparent and no droplets are observed in the micrographs. It was also demonstrated that this demulsifier is effective for emulsions prepared with a variety of oils. Moreover, magnetically recovered demulsifier can be recycled after simple treatment without any decline of efficiency. This work presents a feasible approach for demulsifying water-in-oil emulsions, and has potential value in industry.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据