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首页> 外文期刊>Separation and Purification Technology >Stability and performance study of newly developed emulsion prepared with polymeric rubber emulsifier and using the emulsion for nicotine extraction
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Stability and performance study of newly developed emulsion prepared with polymeric rubber emulsifier and using the emulsion for nicotine extraction

机译：用聚合物橡胶乳化剂制备的新型乳化剂用于尼古丁提取的稳定性和性能研究

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摘要

A stable water-in-oil (W/O) emulsion was prepared using polymeric additive as emulsifier instead of surfactant Span 80 (sorbitan monooleate) and kerosene as the organic membrane phase. The rubber emulsifiers were prepared using polybutadiene-styrene rubber (PBSR) or polybutadiene rubber (PBR) as the polymeric additive in this work. It was found that the rubber emulsifier acted like a surfactant in the emulsification process. The factors of influence of the W/O emulsion stability were investigated. The emulsion stability and mass transfer efficiency were assessed by measuring the concentration of nicotine in the internal strip and the external feed phase, respectively. The rheological behavior of W/O emulsion prepared with the rubber emulsifiers was also compared with that of W/O emulsion prepared with Span 80. It showed that the W/O emulsions prepared with the rubber emulsifiers were non-Newtonian when it dispersed in a continuous aqueous solution at low stirring speed. Applying the W/O emulsion for extraction of nicotine from real tobacco samples was carried out through dispersing it in the tobacco nicotine extractant aqueous solution. The results showed that nicotine was almost transferred from the feed to strip phase in 2 min and the efficiency of nicotine mass transfer was exceeded 99%. (C) 2015 Elsevier B.V. All rights reserved.
机译：使用聚合物添加剂作为乳化剂代替表面活性剂Span 80（脱水山梨醇单油酸酯）和煤油作为有机膜相，制备了稳定的油包水（W / O）乳液。在这项工作中，使用聚丁二烯-苯乙烯橡胶（PBSR）或聚丁二烯橡胶（PBR）作为聚合物添加剂制备了橡胶乳化剂。已经发现，橡胶乳化剂在乳化过程中起表面活性剂的作用。研究了W / O乳液稳定性的影响因素。通过分别测量内部条带和外部进料相中尼古丁的浓度来评估乳液的稳定性和传质效率。还比较了用橡胶乳化剂制备的W / O乳液和用Span 80制备的W / O乳液的流变行为。研究表明，用橡胶乳化剂制备的W / O乳液分散在硅橡胶中时是非牛顿性的。在低搅拌速度下连续水溶液。通过将W / O乳剂分散在烟草尼古丁提取剂水溶液中，进行W / O乳剂从真实烟草样品中提取尼古丁的操作。结果表明，尼古丁在2分钟内几乎从进料转移到汽提相，尼古丁传质效率超过99％。 （C）2015 Elsevier B.V.保留所有权利。

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