Separation of Cobalt and Nickel with Phenylphosphonic Acid Mono-4-ferf-octylphenyl Ester by Liquid Surfactant Membranes

Takahiko Kakol, Masahiro Goto, Katsue Sugimoto

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The separation of cobalt and nickel with liquid surfactant membranes (LSMs) was carried out in a stirred cell using a newly synthesized extractant. The effect of a surfactant on the kinetics of cobalt and nickel extraction was investigated to elucidate the role of a surfactant used in LSMs. The extraction equilibrium of these metals was also examined. Further, the interfacial tension between the organic and aqueous phases was measured to elucidate the adsorption equilibrium of a surfactant. It was found that the interfacial activity of the extractant is as high as that of a surfactant. In the extraction equilibrium study of these metals, extraction equilibrium constants were obtained for cobalt and nickel for the following equations: Co2++ 2(HR)2= CoR2(HR)2+ 2H + Ni2++ 3(HR)2= NiR22(HR)2+ 2H +The effects of the extractant and surfactant on the extraction rate of cobalt and nickel in LSMs were studied. The results were analyzed by a proposed model with an interfacial reaction, and rate constants were obtained for each metal. It was found that the new extractant has a very strong extractability for each metal compared with a conventional commercial extractant such as 2-ethylhexylphos.

Original languageEnglish
Pages (from-to)637-657
Number of pages21
JournalSeparation Science and Technology
Volume30
Issue number4
DOIs
Publication statusPublished - Jan 1 1995

Fingerprint

Cobalt
Nickel
Surface-Active Agents
Esters
Surface active agents
Membranes
Acids
Liquids
Metals
Rate constants
phenylphosphonic acid
Equilibrium constants
Surface chemistry
Surface tension
Adsorption
Kinetics

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Process Chemistry and Technology
  • Filtration and Separation

Cite this

Separation of Cobalt and Nickel with Phenylphosphonic Acid Mono-4-ferf-octylphenyl Ester by Liquid Surfactant Membranes. / Kakol, Takahiko; Goto, Masahiro; Sugimoto, Katsue.

In: Separation Science and Technology, Vol. 30, No. 4, 01.01.1995, p. 637-657.

Research output: Contribution to journalArticle

@article{ddb838c4dd1a4c619f9b3f5fff0046e6,
title = "Separation of Cobalt and Nickel with Phenylphosphonic Acid Mono-4-ferf-octylphenyl Ester by Liquid Surfactant Membranes",
abstract = "The separation of cobalt and nickel with liquid surfactant membranes (LSMs) was carried out in a stirred cell using a newly synthesized extractant. The effect of a surfactant on the kinetics of cobalt and nickel extraction was investigated to elucidate the role of a surfactant used in LSMs. The extraction equilibrium of these metals was also examined. Further, the interfacial tension between the organic and aqueous phases was measured to elucidate the adsorption equilibrium of a surfactant. It was found that the interfacial activity of the extractant is as high as that of a surfactant. In the extraction equilibrium study of these metals, extraction equilibrium constants were obtained for cobalt and nickel for the following equations: Co2++ 2(HR)2= CoR2(HR)2+ 2H + Ni2++ 3(HR)2= NiR22(HR)2+ 2H +The effects of the extractant and surfactant on the extraction rate of cobalt and nickel in LSMs were studied. The results were analyzed by a proposed model with an interfacial reaction, and rate constants were obtained for each metal. It was found that the new extractant has a very strong extractability for each metal compared with a conventional commercial extractant such as 2-ethylhexylphos.",
author = "Takahiko Kakol and Masahiro Goto and Katsue Sugimoto",
year = "1995",
month = "1",
day = "1",
doi = "10.1080/01496399508225614",
language = "English",
volume = "30",
pages = "637--657",
journal = "Separation Science and Technology",
issn = "0149-6395",
publisher = "Taylor and Francis Ltd.",
number = "4",

}

TY - JOUR

T1 - Separation of Cobalt and Nickel with Phenylphosphonic Acid Mono-4-ferf-octylphenyl Ester by Liquid Surfactant Membranes

AU - Kakol, Takahiko

AU - Goto, Masahiro

AU - Sugimoto, Katsue

PY - 1995/1/1

Y1 - 1995/1/1

N2 - The separation of cobalt and nickel with liquid surfactant membranes (LSMs) was carried out in a stirred cell using a newly synthesized extractant. The effect of a surfactant on the kinetics of cobalt and nickel extraction was investigated to elucidate the role of a surfactant used in LSMs. The extraction equilibrium of these metals was also examined. Further, the interfacial tension between the organic and aqueous phases was measured to elucidate the adsorption equilibrium of a surfactant. It was found that the interfacial activity of the extractant is as high as that of a surfactant. In the extraction equilibrium study of these metals, extraction equilibrium constants were obtained for cobalt and nickel for the following equations: Co2++ 2(HR)2= CoR2(HR)2+ 2H + Ni2++ 3(HR)2= NiR22(HR)2+ 2H +The effects of the extractant and surfactant on the extraction rate of cobalt and nickel in LSMs were studied. The results were analyzed by a proposed model with an interfacial reaction, and rate constants were obtained for each metal. It was found that the new extractant has a very strong extractability for each metal compared with a conventional commercial extractant such as 2-ethylhexylphos.

AB - The separation of cobalt and nickel with liquid surfactant membranes (LSMs) was carried out in a stirred cell using a newly synthesized extractant. The effect of a surfactant on the kinetics of cobalt and nickel extraction was investigated to elucidate the role of a surfactant used in LSMs. The extraction equilibrium of these metals was also examined. Further, the interfacial tension between the organic and aqueous phases was measured to elucidate the adsorption equilibrium of a surfactant. It was found that the interfacial activity of the extractant is as high as that of a surfactant. In the extraction equilibrium study of these metals, extraction equilibrium constants were obtained for cobalt and nickel for the following equations: Co2++ 2(HR)2= CoR2(HR)2+ 2H + Ni2++ 3(HR)2= NiR22(HR)2+ 2H +The effects of the extractant and surfactant on the extraction rate of cobalt and nickel in LSMs were studied. The results were analyzed by a proposed model with an interfacial reaction, and rate constants were obtained for each metal. It was found that the new extractant has a very strong extractability for each metal compared with a conventional commercial extractant such as 2-ethylhexylphos.

UR - http://www.scopus.com/inward/record.url?scp=0029253239&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029253239&partnerID=8YFLogxK

U2 - 10.1080/01496399508225614

DO - 10.1080/01496399508225614

M3 - Article

AN - SCOPUS:0029253239

VL - 30

SP - 637

EP - 657

JO - Separation Science and Technology

JF - Separation Science and Technology

SN - 0149-6395

IS - 4

ER -