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Green Separation Science and Technology: Replacement of Volatile Organic Compounds in Industrial Scale Liquid-Liquid or Chromatographic Separations

机译:绿色分离科学与技术:工业规模的液-液或色谱分离中挥发性有机化合物的替代

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摘要

One area of opportunity for new chemical science and engineering technology which will help meet the goals of the U.S. Chemical Industry's Technology Vision 2020 is the development of new separations technologies that eliminate the use of flammable, toxic VOCs as industrial solvents. Alternative technologies currently under investigation in our laboratories include those based on the use of water soluble polyethylene glycol polymers in either liquid/liquid (aqueous biphasic systems - ABS) or chromatographic (aqueous biphasic extraction chromatographic resins - ABEC) separations, and those based on air and moisture stable, water immiscible room temperature ionic liquids (RTIL). The ABS and ABEC applications are highlighted with two patented technologies for pertechnetate separation including: a) applications in radiopharmacy where the use of cleaner neutron-irradiated isotopes rather than fission-produced isotopes is possible, and b) applications in nuclear waste remediation where reduction of secondary waste streams produced by conventional technologies are anticipated. The potential and challenges for using the much less studied RTIL in novel separations will also be discussed. Within a new paradigm of pollution prevention and with industry participation, it is anticipated that a tool-box approach to Green Separation Science & Technology will lead to new technologies which do not utilize VOCs.
机译:新化学科学和工程技术的机遇领域之一将有助于实现美国化学工业的2020年技术远景目标,这是开发新的分离技术,该技术可消除使用易燃,有毒的VOC作为工业溶剂。我们实验室中目前正在研究的替代技术包括基于在液体/液体(双相水相系统-ABS)或色谱(双相萃取色谱树脂-ABEC)中使用水溶性聚乙二醇聚合物的分离技术,以及基于空气的分离技术。且具有湿气稳定性,与水不混溶的室温离子液体(RTIL)。 ABS和ABEC的应用是高per酸盐分离的两项专利技术,其中包括:a)在放射性药物中的应用,其中可以使用更清洁的中子辐照同位素而不是裂变产生的同位素,以及b)在减少废物中应用的核废料中预期通过常规技术产生的二次废物流。还将讨论在新型分离中使用研究较少的RTIL的潜力和挑战。在污染预防的新范式中以及在行业的参与下,可以预期的是,绿色分离科学与技术的工具箱方法将导致不使用VOC的新技术。

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