EXTRACTION OF IRON(Ⅲ),COBALT(Ⅱ)AND NICKLE(Ⅱ)WITH 1,10-BIS(1' -PHENYL-3' -METHYL-5' -OXOPYRAZOLE-4' -YL)-1,10-DECANEDIONE

Chinese Journal of Applied Chemistry ›› 1991, Vol. 0 ›› Issue (6): 92-94.

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EXTRACTION OF IRON(Ⅲ),COBALT(Ⅱ)AND NICKLE(Ⅱ)WITH 1,10-BIS(1' -PHENYL-3' -METHYL-5' -OXOPYRAZOLE-4' -YL)-1,10-DECANEDIONE

Lu Wen, Dong Xuechang, Reng Xiaofeng, Ma Zhihong

Department of Chemistry, Yunnan Institute of the Nationalities, Kunming 850011

Received:1990-10-17 Revised:1991-01-29 Published:1991-12-10 Online:1991-12-10

Abstract

Abstract: The extraction behavior of iron(Ⅲ), cobalt(Ⅰ) and nickle(Ⅰ) by title compound (abbre-viated as H₂A) in chloroform, has been studied. In the solution of sodium nitrate and HAc--NaAc, H₂A extracts iron(Ⅲ) and cobalt(Ⅰ), but doesn' t extract nickle(Ⅰ). The composi-tions of the extracted complexes were determined as Fe₂A₃ and CoA (H₂A) respectively. Their pH1/2 values were found to be 2.6 and 4.8 and their extraction equilibrium constants were 1.31 and - 5.12 respectively. The title extractant promised to fulfil the separation betweeniron(Ⅲ), cobalt(Ⅰ) and nickle(Ⅰ).

Key words: iron, cobalt, nickle, extraction separation, chelating extractant

Lu Wen, Dong Xuechang, Reng Xiaofeng, Ma Zhihong. EXTRACTION OF IRON(Ⅲ),COBALT(Ⅱ)AND NICKLE(Ⅱ)WITH 1,10-BIS(1' -PHENYL-3' -METHYL-5' -OXOPYRAZOLE-4' -YL)-1,10-DECANEDIONE[J]. Chinese Journal of Applied Chemistry, 1991, 0(6): 92-94.

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EXTRACTION OF IRON(Ⅲ),COBALT(Ⅱ)AND NICKLE(Ⅱ)WITH 1,10-BIS(1' -PHENYL-3' -METHYL-5' -OXOPYRAZOLE-4' -YL)-1,10-DECANEDIONE

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