The Extraction of Lanthanum by Sodium Oleate Microemulsion

doi:10.3724/SP.J.1095.2011.00679

Chinese Journal of Applied Chemistry ›› 2011, Vol. 28 ›› Issue (10): 1218-1220.DOI: 10.3724/SP.J.1095.2011.00679

• Communications • Previous Articles

The Extraction of Lanthanum by Sodium Oleate Microemulsion

WANG Wei, YANG Yanzhao^*, LU Wenjuan, LIU Fei, SHANG Kai

(School of Chemistry and Chemical Engineering,Shandong University,Ji′nan 250100)

Received:2010-11-16 Revised:2011-01-13 Published:2011-10-10 Online:2011-10-10

Abstract

Abstract:

The extraction of lanthanum to a W/O microemulsion by the sodium oleate/pentanol/heptane/NaCl microemulsion system was studied. The influence of extraction time, aqueous-microemulsion ratio, concentration of NaOL, concentration of cosurfactant, pH and salting-out agent on the extraction rate was investigated. The microemulsion system showed strong extractability and stability without extractant. The extraction rate(E％) can be more than 99.5% when the mass fraction of NaOL and pentanol are 6% and 32%, respectively, R=7 and pH 3.5~7.

Key words: Microemulsion, La(III), Sodium oleate, Extraction

CLC Number:

O616

WANG Wei, YANG Yanzhao*, LU Wenjuan, LIU Fei, SHANG Kai. The Extraction of Lanthanum by Sodium Oleate Microemulsion[J]. Chinese Journal of Applied Chemistry, 2011, 28(10): 1218-1220.

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The Extraction of Lanthanum by Sodium Oleate Microemulsion

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