Studies on the Transport and Enrichment of Trace Metal Ions Cd2+and Cr3+by W/O Microemulsion

Abstract

Abstract: The water-in-oil(W/O) microemulsions, which have been prepared by using the surfactant diethylhexyl sodium sulphasuccinate(AOT) and the oil solvent n-heptane, were used to transport and enrich trace metal ions Cd²⁺and Cr³⁺. The experimental results show that the two metal ions have high transport ratios(>90%) under the optimum conditions, Cd²⁺has high enrich times(6-7 times) and recovery ratio(100%), but Cr³⁺has very low enrich times(1-2 times) and recovery ratio(0%) under the given conditions of de emulsion.

Key words: W/O microemulsion, Transport, Enrich

CLC Number:

O658.1

TrendMD:

HAN Li-Xin, LI Ke-An, TONG Shen-Yang. Studies on the Transport and Enrichment of Trace Metal Ions Cd²⁺and Cr³⁺by W/O Microemulsion[J]. Chem. J. Chinese Universities, 1998, 19(8): 1236.

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Studies on the Transport and Enrichment of Trace Metal Ions Cd²⁺and Cr³⁺by W/O Microemulsion

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