Extraction Equilibria of Palladium(II) and Platinum(IV) with N,N-Di(2-ethylhexyl)aminomethylquinoline from Hydrochloric Acid

Baba, Yoshihiro; Arima, Akemi; Kanemaru, Shintaro; Iwakuma, Minako; Oshima, Tatsuya

doi:10.1252/jcej.10we284

Cited by 5 publications

(3 citation statements)

References 11 publications

(9 reference statements)

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Section: Introductionmentioning

confidence: 99%

“…However, many metal combinations exist that are difficult to separate from one another. A variety of extractants have been designed for the separation of critical metals such as rare earth metals, − precious metals, , and transition metals such as nickel (Ni 2+ ), cobalt (Co 2+ ), and so on. The selective extraction of Ni 2+ and Co 2+ from impurity metals such as zinc, magnesium, and calcium has been examined. − However, difficulties still remain for their separation from manganese (Mn 2+ ), which often coexists in large amounts in natural and secondary resources. , Commercial organophosphorous extractants, such as 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester (PC-88A), di-(2-ethylhexyl) phosphoric acid (D2EHPA), and bis(2,4,4-trimethylpentyl) phosphinic acid (Cyanex 272), , are typically used in hydrometallurgy; however, the separation of Ni 2+ and Co 2+ from Mn 2+ using these extractants is difficult because they are selective for Mn 2+ .…”

Section: Introductionmentioning

confidence: 99%

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Development of Novel Extractants with Amino Acid Structure for Efficient Separation of Nickel and Cobalt from Manganese Ions

Baba

Kubota

Kamiya

et al. 2014

Ind. Eng. Chem. Res.

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The solvent extraction separation of nickel and cobalt from manganese is an important issue to be resolved. Novel amic acid type extractants with the glycine or sarcosine moiety N-[N, N-di(2-ethylhexyl)aminocarbonylmethyl]glycine (D2EHAG) and N-[N, N-di(2-ethylhexyl)aminocarbonylmethyl]sarcosine (D2EHAS) were synthesized to achieve this separation. These extractants were prepared by a simple two-step reaction and were readily soluble in aliphatic organic solvents. The extraction behavior of Ni 2+ , Co 2+ , and Mn 2+ with D2EHAG and D2EHAS in n-dodecane was investigated compared with that of conventional extractants. The novel extractants extracted Ni 2+ and Co 2+ preferentially with a high selectivity to Mn 2+ . The metal ions could be back-extracted quantitatively using 1 mol dm −3 sulfuric acid. The extraction mechanism of the three metal ions with D2EHAG and D2EHAS was investigated, and results suggest that one divalent metal ion is extracted with two extractant molecules.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Development of Novel Extractants with Amino Acid Structure for Efficient Separation of Nickel and Cobalt from Manganese Ions

Baba

Kubota

Kamiya

et al. 2014

Ind. Eng. Chem. Res.

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“…us this paper deserves the Outstanding Paper Award. N,N-Di(2-ethylhexyl)aminomethylquinoline from Hydrochloric Acid, " by Yoshinari Baba, Akemi Arima, Shintaro Kanemaru, Minako Iwakuma and Tatsuya Oshima, University of Miyazaki and Miyakonojo National College of Technology (Baba et al, 2011b) Citation:…”

Section: "Relationship Between Applied Static Magnetic Field Strengthmentioning

confidence: 99%

JCEJ Outstanding Paper Award of 2011

Shishido

Honda

2012

J. Chem. Eng. Japan

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JCEJ Paper Award is given for outstanding contribution to chemical engineering documented in a paper published in Journal of Chemical Engineering of Japan. e selection is made by means of a three-stage process consisting of nomination, rst round elimination, and point rating. Outstanding Paper Awards Subcommittee of the journal has assessed the 132 papers published in 2011, corresponding to volume 44. e subcommittee selected the candidates of the award and the members of the editorial board con rmed the selection. As a result of this process, the editorial board nally selected the following ve papers for the award of 2011. "Application of Ionic Liquids to Extraction Separation of Rare Earth Metals with an E ective Diglycol AmicAcid Extractant" by Fukiko Kubota, Yousuke Shimobori, Yuzo Baba, Yusuke Koyanagi, Kojiro Shimojo, Noiho Kamiya and Masahiro Goto, Kyushu University and Japan Atomic Energy Agency (Kubota et al., 2011) Citation: e present paper demonstrated that quantitative extraction of rare earth metal ions such as Y 3+ and Eu 3+was selectively achieved into various ionic liquids over the base metal ion Zn 2+ using a novel extractant. e extraction e ciency was also found to be enhanced for the shorteralkyl-chain imidazolium ionic liquid compared to that for a conventional organic solvent system. Furthermore, the extraction mechanism was elucidated and recovery of the metal ions from the extracting phase was also demonstrated. Hence, the present paper is expected to contribute to the development of future revolutionary rare earth metallurgy processing and thus deserves the Outstanding Paper Award.

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Precious Metal Separations

Narita

Kasuya

Suzuki

et al. 2020

Encyclopedia of Inorganic and Bioinorganic Chemistry

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Separation of precious metals (PMs) is becoming increasingly important because of their growing application in industrial products, such as electronics and catalysts. Most PM separation and purification processes are performed using acidic chloride solutions; therefore, a thorough understanding of the chemical properties and separation mechanisms of PM chloridometalates in solution is of key importance for improving these processes. This article focuses on the solvent extraction of PM ions from acidic chloride solutions as the main technology for the mutual separation of PMs. In addition, leaching methods, dominant species in acidic chloride solutions, and non‐solvent‐extraction separation methods are discussed.

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Extraction Equilibria of Palladium(II) and Platinum(IV) with N,N-Di(2-ethylhexyl)aminomethylquinoline from Hydrochloric Acid

Cited by 5 publications

References 11 publications

Development of Novel Extractants with Amino Acid Structure for Efficient Separation of Nickel and Cobalt from Manganese Ions

Development of Novel Extractants with Amino Acid Structure for Efficient Separation of Nickel and Cobalt from Manganese Ions

JCEJ Outstanding Paper Award of 2011

Precious Metal Separations

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