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Separation of platinum group metals using deep eutectic solvents based on quaternary ammonium salts. / Mokhodoeva, Olga; Maksimova, Valeriia; Shishov, Andrey; Shkinev, Valeriy.

In: Separation and Purification Technology, Vol. 305, 122427, 15.01.2023.

Research output: Contribution to journal › Article › peer-review

Harvard

Mokhodoeva, O, Maksimova, V, Shishov, A & Shkinev, V 2023, 'Separation of platinum group metals using deep eutectic solvents based on quaternary ammonium salts', Separation and Purification Technology, vol. 305, 122427. https://doi.org/10.1016/j.seppur.2022.122427

APA

Mokhodoeva, O., Maksimova, V., Shishov, A., & Shkinev, V. (2023). Separation of platinum group metals using deep eutectic solvents based on quaternary ammonium salts. Separation and Purification Technology, 305, [122427]. https://doi.org/10.1016/j.seppur.2022.122427

Vancouver

Mokhodoeva O, Maksimova V, Shishov A, Shkinev V. Separation of platinum group metals using deep eutectic solvents based on quaternary ammonium salts. Separation and Purification Technology. 2023 Jan 15;305. 122427. https://doi.org/10.1016/j.seppur.2022.122427

Author

Mokhodoeva, Olga ; Maksimova, Valeriia ; Shishov, Andrey ; Shkinev, Valeriy. / Separation of platinum group metals using deep eutectic solvents based on quaternary ammonium salts. In: Separation and Purification Technology. 2023 ; Vol. 305.

BibTeX

@article{af2d8b0771694311a9ee73dfc25c604d,
title = "Separation of platinum group metals using deep eutectic solvents based on quaternary ammonium salts",
abstract = "A new technique for selective separation and enrichment of platinum group metals (platinum, palladium, rhodium, iridium, ruthenium) from model hydrochloric and chloride media into hydrophobic deep eutectic solvents without the use of chelating agents is presented for the first time. The process consists in extraction of precious metals into an eutectic solvent based on tetraoctylammonium bromide and a carboxylic acid with further re-extraction of metals with ammonium hydroxide and nitric acid solutions. The extraction efficiency of metals from 0.1 M HCl was > 99.7 % for Pt and Pd; 87.3 % for Ru; 45.1 % for Ir; 28.5 % for Rh using the tetraoctylammonium bromide/hexanoic acid eutectic solvent. The developed technique was applied for the separation of platinum and palladium from refinery wastewater to obtain individual fractions with purity of > 99.9 %. The procedure does not involve the use of toxic, volatile or flammable solvents and can be an environmentally benign alternative to traditionally used approaches.",
keywords = "Deep eutectic solvents, Noble metals, Precious metals, Refinery, Solvent extraction",
author = "Olga Mokhodoeva and Valeriia Maksimova and Andrey Shishov and Valeriy Shkinev",
note = "Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",
year = "2023",
month = jan,
day = "15",
doi = "10.1016/j.seppur.2022.122427",
language = "English",
volume = "305",
journal = "Separation and Purification Technology",
issn = "1383-5866",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Separation of platinum group metals using deep eutectic solvents based on quaternary ammonium salts

AU - Mokhodoeva, Olga

AU - Maksimova, Valeriia

AU - Shishov, Andrey

AU - Shkinev, Valeriy

N1 - Publisher Copyright: © 2022 Elsevier B.V.

PY - 2023/1/15

Y1 - 2023/1/15

N2 - A new technique for selective separation and enrichment of platinum group metals (platinum, palladium, rhodium, iridium, ruthenium) from model hydrochloric and chloride media into hydrophobic deep eutectic solvents without the use of chelating agents is presented for the first time. The process consists in extraction of precious metals into an eutectic solvent based on tetraoctylammonium bromide and a carboxylic acid with further re-extraction of metals with ammonium hydroxide and nitric acid solutions. The extraction efficiency of metals from 0.1 M HCl was > 99.7 % for Pt and Pd; 87.3 % for Ru; 45.1 % for Ir; 28.5 % for Rh using the tetraoctylammonium bromide/hexanoic acid eutectic solvent. The developed technique was applied for the separation of platinum and palladium from refinery wastewater to obtain individual fractions with purity of > 99.9 %. The procedure does not involve the use of toxic, volatile or flammable solvents and can be an environmentally benign alternative to traditionally used approaches.

AB - A new technique for selective separation and enrichment of platinum group metals (platinum, palladium, rhodium, iridium, ruthenium) from model hydrochloric and chloride media into hydrophobic deep eutectic solvents without the use of chelating agents is presented for the first time. The process consists in extraction of precious metals into an eutectic solvent based on tetraoctylammonium bromide and a carboxylic acid with further re-extraction of metals with ammonium hydroxide and nitric acid solutions. The extraction efficiency of metals from 0.1 M HCl was > 99.7 % for Pt and Pd; 87.3 % for Ru; 45.1 % for Ir; 28.5 % for Rh using the tetraoctylammonium bromide/hexanoic acid eutectic solvent. The developed technique was applied for the separation of platinum and palladium from refinery wastewater to obtain individual fractions with purity of > 99.9 %. The procedure does not involve the use of toxic, volatile or flammable solvents and can be an environmentally benign alternative to traditionally used approaches.

KW - Deep eutectic solvents

KW - Noble metals

KW - Precious metals

KW - Refinery

KW - Solvent extraction

UR - http://www.scopus.com/inward/record.url?scp=85140431636&partnerID=8YFLogxK

U2 - 10.1016/j.seppur.2022.122427

DO - 10.1016/j.seppur.2022.122427

M3 - Article

AN - SCOPUS:85140431636

VL - 305

JO - Separation and Purification Technology

JF - Separation and Purification Technology

SN - 1383-5866

M1 - 122427

ER -

ID: 100768611