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Citation: Gai Huifa, Sun Sixiu, Gao Zili, Shen Jinglan. STUDIES ON THE EXTRACTION KINETICS Ⅴ. EXTRACTION OF COBALT(Ⅱ) WITH HDEHP BY SINGLE DROP METHOD[J]. Chinese Journal of Applied Chemistry, ;1986, 3(3): 61-66. shu

STUDIES ON THE EXTRACTION KINETICS Ⅴ. EXTRACTION OF COBALT(Ⅱ) WITH HDEHP BY SINGLE DROP METHOD

1.
Department of Chemistry, Shangdong University, Jinan

Received Date: 12 March 1985
Available Online: 24 August 1985
Fund Project:

The kinetics and mechanism of the extraction of Co(Ⅱ) from sulphate solution with HDEHPin kerosene were studied by means of single drop method at 25℃, The experimental results indicate that the extraction process is controlled by the following interface reactions:Co⁺⁺+2HA(i)=CoA₂(i)+2H⁺, CoA₂(i)+2H₂A_2(o)=CoA₂·2HA_(o)+2HA(i)where (O) and (i) represent organic phase and interface respectively. The influences of sulphate, chloride and nitrate concentration on the extraction rate were also discussed.
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