Improved Separations by Coupling Ion-Pair Extraction with Adsorption

CTS - 9531812 Gregory Payne马里兰州大学，巴尔的摩县 摘要 本课题是将联合收割机离子对萃取与吸附相结合，降低极性有机物回收成本的一种尝试。 利用特定的相互作用机制和耦合多种相互作用可以显著提高分离选择性。 所提出的工作涉及使用季铵萃取剂的离子对萃取的有机酸，并结合离子对萃取与吸附到极性位点的丙烯酸酯吸附剂。 与离子对萃取相关的疏水和静电相互作用将耦合到极性吸附相互作用。 我们的目标是量化的作用，每一个相互作用机制，并评估模型系统的耦合相互作用的分离潜力。 提高产品纯度，减少浪费和提高能源效率为该项目提供了强大的动力。 这些结果可能会导致生产商品化学品和生物分子的改进分离技术。

CTS - 9531812 Gregory Payne University of Maryland, Baltimore County ABSTRACT The project is and attempt to combine ion-pair extraction with adsorption as a means to lower the costs of recovering polar organics form aqueous solution. Separation selectivities may be improved significantly be y exploiting specific interaction mechanisms and coupling multiple interactions. The proposed work involves the use of quaternary ammonium extractants for the ion-pair extraction of organic acids, and combing of ion-pair extraction with adsorption onto the polar sites of an acrylic ester sorbent. The hydrophobic and electrostatic interactions associated with ion-pair extraction will be coupled to polar adsorptive interactions. The goals are to quantify the role of each interaction mechanism and to assess the separations potential of coupling interactions for model systems. Enhancing product purity, minimizing waste and increasing energy efficiency provide strong motivation for this project. The results may lead to improved separation techniques for manufacturing commodity chemicals and biomolecules.