Crown Ethers as Carriers for the Transport of Anionic Thiocyanate Complex of Uranyl Ion Across a Bulk Liquid Membrane

Borosilicate glasses modified with organic ligands: A new selective approach for the removal of uranyl ion

“…Selective separation of uranium from a source containing the metal ion at low concentration level has attracted the attention of many chemists because of its importance in nuclear industry. There are reports dealing with separation of uranyl ion using different techniques [3,4].…”

Liquid Membranes: Basic Concepts and Applications to Nuclear Industry

“…Transport of radionuclides like uranium and thorium have also been studied using BLM setup. The transport of uranium using potassium selective crown ethers [28] involved the conversion of uranyl ion into its thiocyanato complex using KSCN and transported along with potassium ion. The use of calixarene in conjunction with TOPO gave a complete and highly selective of uranyl ion even from seawater samples [28,29].…”

“…The transport of uranium using potassium selective crown ethers [28] involved the conversion of uranyl ion into its thiocyanato complex using KSCN and transported along with potassium ion. The use of calixarene in conjunction with TOPO gave a complete and highly selective of uranyl ion even from seawater samples [28,29]. The use of bis(2-ethyl hexyl) phosphoric acid (D2EHPA) as carrier could result in excellent separation of uranium even from phosphoric acid medium [30,31].…”