Competitive extraction of Pb{sup 2+} by dicyclohexano-18-crown-6 from heavy metal aqueous solutions

Journal Article · Thu Oct 31 23:00:00 EST 1996 · Journal of Chemical and Engineering Data

DOI:https://doi.org/10.1021/je9601523· OSTI ID:404522

Dernini, S; Scrugli, A; Palmas, S; Polcaro, A M ^[1]

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1. Univ. Degli Studi di Cagliari (Italy). Dipt. di Ingegneria Chimica e Materiali

Dicyclohexano-18-crown-6 was found to selectively remove Pb{sup 2+} from aqueous solutions containing it alone, and with other cations. Distribution ratios for liquid-liquid extraction of heavy metal cations such as Pb{sup 2+}, Ni{sup 2+}, Co{sup 2+}, Cu{sup 2+}, and Zn{sup 2+} by some crown ethers (dicyclohexano-18-crown-6, dibenzo-18-crown-6, benzo-15-crown-5) were reported. SCN{sup {minus}}, NO{sub 3}{sup {minus}}, and Cl{sup {minus}} were used as anions while nitrobenzene, chloroform, toluene, and an equimolar mixture of nitrobenzene and chloroform were the solvents.

• OSTI ID: 404522
• Journal Information: Journal of Chemical and Engineering Data, Journal Name: Journal of Chemical and Engineering Data Journal Issue: 6 Vol. 41; ISSN 0021-9568; ISSN JCEAAX
• Country of Publication: United States
• Language: English

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