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Citation: WANG Wei, YANG Yanzhao, LU Wenjuan, LIU Fei, SHANG Kai. Extraction of Lanthanum by Sodium Oleate Microemulsion[J]. Chinese Journal of Applied Chemistry, ;2011, 28(10): 1218-1220. doi: 10.3724/SP.J.1095.2011.00679 shu

Extraction of Lanthanum by Sodium Oleate Microemulsion

1.
School of Chemistry and Chemical Engineering, Shandong University, Ji'nan 250100

Corresponding author: YANG Yanzhao,
Received Date: 16 November 2010
Available Online: 17 January 2011
Fund Project: 国家自然科学基金(20876089,21076115) (20876089,21076115)山东省自然科学基金(ZR2010BM019)资助项目 (ZR2010BM019)

The extraction of lanthanum to a W/O microemulsion by the sodium oleate(NaOL)/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.
- microemulsion,
- La(Ⅲ),
- sodium oleate,
- extraction
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