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首页> 外文期刊>Separation and Purification Technology >Separation of organic acids by newly developed polysulfone microcapsules containing triotylamine
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Separation of organic acids by newly developed polysulfone microcapsules containing triotylamine

机译：用新开发的含三苯甲基胺的聚砜微胶囊分离有机酸

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Newly developed polysulfone (PS) microcapsules containing triotylamine (TOA) were successfully prepared with a phase inversion method and the influence factors on the microcapsules have been investigated.The extraction performance of the microcapsules has also been carried out with oxalic acid,propionic acid and citric acid as solutes and the stability of the microcapsules was tested too.The results show that proper ethanol content in solidification solution,an optimal distance from pinhead to the surface of solidification solution and an appropriate emulsion composition are in favor of forming regularly spherical microcapsules.The prepared microcapsule has uniform outside surface and there is no apparent deficiency.The microcapsules have hollow structure and digital structure in their wall.Parts of TOA are immobilized in the wall with small particle form.The mass transfer rate and the uptakes to the organic acids are enough high.After seven times of repeated extraction and stripping,the microcapsules kept almost the same extraction ability,which indicated that the microcapsules have very good stability in the extraction process.
机译：用相转化法成功制备了新的含三氨甲乙酰胺（TOA）的聚砜（PS）微囊，研究了其对微囊的影响因素，并用草酸，丙酸和柠檬酸对微囊的提取性能进行了研究。结果表明，凝固溶液中适当的乙醇含量，从针尖到凝固溶液表面的最佳距离以及合适的乳液组成均有助于形成规则的球形微胶囊。制备的微胶囊具有均匀的外表面，没有明显的缺陷，微胶囊的壁具有中空结构和数字结构，TOA的一部分固定在壁上且呈小颗粒形式，传质速率和对有机酸的吸收为足够高。经过七次反复提取和剥离后，t该微胶囊具有几乎相同的提取能力，这表明该微胶囊在提取过程中具有很好的稳定性。

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