利用稳定性分析仪研究化学破乳过程  

Investigation of chemical demulsification process by stability analyzer

作　　者：黄翔峰[1] 程航[1] 陆丽君[1] 刘佳[1] 

机构地区：[1]同济大学环境科学与工程学院污染控制与资源化研究国家重点实验室,上海200092

出　　处：《化工进展》2010年第5期825-830,共6页Chemical Industry and Engineering Progress

基　　金：国家自然科学基金(50908166);上海市科委登山行动计划(06DZ22007);新疆维吾尔自治区科技支疆项目(200891115)

摘　　要：利用Turbiscan LabExpert稳定性分析仪研究了化学破乳过程,揭示了破乳过程中模型乳状液体系的絮集、聚并、沉淀、上浮、分相等现象,并定量分析了上述现象发生的速率以及分散相液滴的粒径变化等。结果表明:W/O型模型乳状液的中部发生的是水滴的絮集和聚并,而O/W型模型乳状液的中部保持稳定。W/O型模型乳状液顶部和O/W型模型乳状液底部分别发生的是油相的上浮和水相的下沉,其它部分相对稳定。随着破乳的进行,W/O型模型乳状液中部的内部水滴平均粒径从29.07μm(0h)逐渐增大到73.17μm(1.8h),而O/W型模型乳状液中部的内部油滴平均粒径从12.95μm(0h)逐渐增大到14.03μm(1.6h)。Chemical demulsification process was studied by using Turbiscan Lab？ Expert stability analyzer,which revealed the phenomena of flocculation,coagulation,sedimentation,creaming and phase separation during the demulsification process.Simultaneously the rate of the above-mentioned phenomena and the droplet size changes were quantitatively analyzed.Results showed that flocculation and coagulation of water droplets occured in the middle of the W/O model emulsion,while kept stable in the middle of the O/W model emulsion.Moreover,creaming and sedimentation were observed in the top of the W/O model emulsion and in the bottom of the O/W model emulsion while other parts kept stable.As the demulsification process proceeds,the mean water droplet diameter in the middle of W/O emulsion increased from 29.07 μm（0 h）to 73.17 μm（1.8 h）,while the mean oil droplet diameter in the middle of O/W emulsion increased from 12.95 μm（0 h）to 14.03μm（1.6 h）.

关 键 词：化学破乳 W/O型模型乳状液 O/W型模型乳状液 Turbiscan稳定性分析仪 

分 类 号：Q648.23[生物学—生物物理学]