摘要
The extended DLVO theory was used to analyze the stability of emulsion stabilized by solid particles. It was emphasized that emulsion droplets covered by solid particles behaved as congener solid granules with the same diameter as droplets. The interaction potential energy curves between emulsion droplets stabilized by mica particles in the copper solvent extraction system were calculated. The results show that the effect of hydration repulsive forces are more powerful than that of electrostatic forces on stabilizing droplets for O/W emulsions. The energy barrier between droplets increases dramatically by about 7 × 103 kT when the hydration repulsion is considered.
The extended DLVO theory was used to analyze the stability of emulsion stabilized by solid particles. It was emphasized that emulsion droplets covered by solid particles behaved as congener solid granules with the same diameter as droplets. The interaction potential energy curves between emulsion droplets stabilized by mica particles in the copper solvent extraction system were calculated. The results show that the effect of hydration repulsive forces are more powerful than that of electrostatic forces on stabilizing droplets for O/W emulsions. The energy barrier between droplets increases dramatically by about 7×10~3 kT when the hydration repulsion is considered.
出处
《中国有色金属学会会刊：英文版》
CSCD
2004年第3期582-586,共5页
Transactions of Nonferrous Metals Society of China
基金
Project(5 0 2 73 0 2 0 )supportedbytheNationalNaturalScienceFoundationofChina
关键词
扩展DLVO理论
乳状液
稳定性
水合压力
油包水型
湿法冶金
emulsion
solid interfacial film
hydration force
coalescence
extended DLVO theory
solvent extraction
