Extractant compositions for co-extracting cesium and strontium, a method of separating cesium and strontium from an aqueous feed, and calixarene compounds

US8158088B2 · kind B2 · utility

Assignee

• Battelle Energy Alliance, LLC · US

Inventors

• Dean R. Peterman · Idaho Falls, US
• David H. Meikrantz · Idaho Falls, US
• Jack D. Law · Pocatello, US
• Catherine Lynn Riddle · Idaho Falls, US
• Terry A. Todd · Aberdeen, US
• Mitchell R. Greenhalgh · Idaho Falls, US
• Richard D. Tillotson · Moore, US
• Richard A. Bartsch · Lubbock, US
• Bruce A. Moyer · Oak Ridge, US
• Laetitia Delmau · Marseille, FR
• Peter V. Bonnesen · Knoxville, US

Key dates

• Filing date: Nov 10, 2008
• Grant date: Apr 17, 2012
• Expiry date: May 19, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C43/23
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A mixed extractant solvent that includes at least one dialkyloxycalix[4]arenebenzocrown-6 compound, 4′,4′,(5′)-di-(t-butyldicyclohexano)-18-crown-6, at least one modifier, and, optionally, a diluent. The dialkyloxycalix[4]arenebenzocrown-6 compound is 1,3-alternate-25,27-di(octyloxy)calix[4]arenebenzocrown-6, 1,3-alternate-25,27-di(decyloxy)calix[4]arenebenzocrown-6, 1,3-alternate-25,27-di(dodecyloxy)calix[4]arenebenzocrown-6, 1,3-alternate-25,27-di(2-ethylhexyl-1-oxy)calix[4]arenebenzocrown-6, 1,3-alternate-25,27-di(3,7-dimethyloctyl-1-oxy)calix[4]arenebenzocrown-6, 1,3-alternate-25,27-di(4-butyloctyl-1-oxy)calix[4]arenebenzocrown-6, or combinations thereof. The modifier is a primary alcohol. A method of separating cesium and strontium from an aqueous feed is also disclosed, as are dialkyloxycalix[4]arenebenzocrown-6 compounds and an alcohol modifier.