Design and Evaluation of Chelating Resins through EDTA- and DTPA-Modified Ligands

作者：Arrachart G^*; Kenaan A; Gracia S; Turgis R; Dubois V; Pellet Rostaing S

来源：Separation Science and Technology (Philadelphia), 2015, 50(12): 1882-1889.

DOI：10.1080/01496395.2015.1012591

• cesium
• DTPA
• EDTA
• co-extraction
• strontium
• ion-exchange

Ion-exchange resins through EDTA or DTPA moieties are synthesized and evaluated for the co-extraction of Cs+ and Sr2+ radionuclides for wastewater treatment. EDTA-bis(amide) and DTPA-bis(amide) derivatives bearing phenol or catechol moieties obtained from tyramine or dopamine, respectively, were used as building blocks to prepare ion-exchange resins. Their synthesis involved the condensation of formaldehyde with various phenolic rings, catechol (C), resorcinol (R), or calixresorcinarene (CR) under alkaline conditions. The resulting formo-phenolic-like resins have both ion-exchange and chelating groups in their structure and are indeed efficient in the remediation of Cs+ and Sr2+, even in salted aqueous solutions.

• 出版日期2015-8-13
• 单位中国地震局