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Citation: Sun Sixiu, Gao Zili, Shen Jinglan, Zhang Honglin. STUDY ON THE EXTRACTION OF IRON(Ⅲ)WITH P538 IN KEROSENE[J]. Chinese Journal of Applied Chemistry, ;2016, 4(5): 78-81. shu

STUDY ON THE EXTRACTION OF IRON(Ⅲ)WITH P538 IN KEROSENE

1.
1. Department of Chemistry, Shandong University, Jinan;
2.
2. Department of Chemistry, Qufu Teachers College, Qufu

Corresponding author: Sun Sixiu,
Received Date: 3 November 1986
Available Online: 31 March 1987

The extraction of Fe(Ⅲ) from nitrate solution with P538 in kerosene has been studied at 25℃. The proposed extraction mechanism is as follows:1. At higher loading 2Fe³⁺ +(5/j)(H₂A)_j(0)=FeA(HA)₄₍₀₎+6H⁺ 2. At lower Loading Fe³⁺+(3/j)(H₂A)_j(0)=Fe(HA)₃₍₀₎+3H⁺ The apparent extraction equilibrium constants were calculated to be 10^11.16 and 10^6.84,respectively. From the experimental results when the formular weight concentration of the extractant is less than 3·10^-3mol·dm^-3 the apparent polymerization degree is estimated about 1.5-1.7.
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