Sulfate Separation from Aqueous Alkaline Solutions by Selective Crystallization of Alkali Metal Coordination Capsules

Autor:	Bruce A. Moyer, Radu Custelcean, Arbin Rajbanshi
Rok vydání:	2011
Předmět:	Aqueous solution Sodium Inorganic chemistry chemistry.chemical_element General Chemistry Condensed Matter Physics Alkali metal Potassium sulfate law.invention chemistry.chemical_compound chemistry law Sodium sulfate Urea General Materials Science Crystallization Sulfate Nuclear chemistry
Zdroj:	Crystal Growth & Design. 11:2702-2706
ISSN:	1528-7505 1528-7483
DOI:	10.1021/cg200515w
Popis:	Self-assembly of a tris(urea) anion receptor with Na2SO4 or K2SO4 yields crystalline capsules held together by coordinating Na+ or K+ cations and hydrogen-bonding water bridges, with the sulfate anions encapsulated inside urea-lined cavities. The sodium-based capsules can be selectively crystallized in excellent yield from highly competitive aqueous alkaline solutions (∼6 M Na+, pH 14), thereby providing for the first time a viable approach to sulfate separation from nuclear wastes.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9f2c54b6f3aac1aca79f7c3ccea493fc https://doi.org/10.1021/cg200515w Zobrazit plný text záznamu