Efficient co-extraction of strontium and cesium from nitric acid medium by mixtures of di-tert-butylcyclohexano-18-crown-6 and 1, 3-di(2-propoxy)calix[4]arene-crown-6 in n-octanol. Issue 3 (11th February 2018)

• Record Type: Journal Article
• Authors: Sun, Taoxiang; Zheng, Zhiyang; Chen, Jing; Wang, Jianchen; Xu, Chao
• Is Part Of: Separation science and technology. Volume 53:Issue 3(2018)
• Page Start: 503
• Page End: 512
• Publication Date: 2018-02-11
• Subjects: Strontium -- cesium -- co-extraction -- high level liquid waste; Separation (Technology) -- Periodicals; 660.284205
• DOI: 10.1080/01496395.2017.1397021
• Languages: English
• ISSNs: 0149-6395

Abstract

ABSTRACT: The co-extraction of strontium and cesium from nitric acid medium by di- tert -butylcyclohexano-18-crown-6 (DtBuCH18C6) and 1, 3-di(2-propoxy)calix[4]arene-crown-6 (iPr-C[4]C-6) in n -octanol was studied. The effects of contact time, nitric acid concentration, extractant concentration and temperature on the co-extraction behavior were systematically investigated. Effective extraction of the two metals was achieved under a variety of conditions. The co-extraction from a simulated high-level liquid waste (HLLW) was also conducted, and strontium and cesium could be selectively extracted in the presence of a large number of other metals. Results in this work illustrate the feasibility of partitioning radioactive strontium and cesium simultaneously from HLLW by a mixture of DtBuCH18C6 and iPr-C[4]C-6 in n -octanol.