采用Hostarex A327作为离子载体，通过膜溶剂萃取工艺实现六价铬的上坡渗透。
Uphill permeation of Cr(VI) using Hostarex A327 as ionophore by membrane-solvent extraction processing.
作者信息
Alguacil Francisco Jose, Alonso Manuel, Lopez Felix, Lopez-Delgado Aurora
机构信息
Centro Nacional de Investigaciones Metalurgicas (CSIC), Avda. Gregorio del Amo 8, Ciudad Universitaria, 28040 Madrid, Spain.
出版信息
Chemosphere. 2008 Jun;72(4):684-9. doi: 10.1016/j.chemosphere.2008.02.030. Epub 2008 Apr 2.
The transport of chromium by the emulsion pertraction technology (EPERT) using Hostarex A327 (tertiary amine) as a carrier has been investigated. The permeation of the metal is studied as a function of various experimental variables: hydrodynamic conditions, concentration of Cr(VI) and HCl in the source phase, carrier concentration and diluent in the organic phase, strippant concentration in the stripping phase and support characteristics of the membrane. The mass transfer coefficient and the thickness of the aqueous source boundary layer were estimated from the experimental data. Furthermore, the selectivity of the Hostarex A327-bases EPERT towards different metal ions and the behaviour of the system against other carriers are presented.
研究了以Hostarex A327（叔胺）为载体，采用乳化液膜萃取技术（EPERT）传输铬的过程。研究了金属的渗透与各种实验变量的关系：流体动力学条件、源相中Cr(VI)和HCl的浓度、有机相中载体浓度和稀释剂、反萃相中反萃剂浓度以及膜的支撑特性。根据实验数据估算了传质系数和水相源边界层的厚度。此外，还介绍了以Hostarex A327为基础的EPERT对不同金属离子的选择性以及该体系与其他载体相比的性能。
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