Effect of hydrophobic ionic liquids aqueous solubility on metal extraction from hydrochloric acid media: Mathematical modelling and trivalent thallium behavior
Journal Article
·
· Separation and Purification Technology
- Texas A & M Univ., College Station, TX (United States); Texas A&M University
- Univ. of Strasbourg (France)
- Texas A & M Univ., College Station, TX (United States)
A mathematical model to explain cations’ solubility of both protic and aprotic ionic liquids in a wide range of hydrochloric acid solutions has been developed. The concept of this model is based on an assumption of the mineral acid extraction into the organic phase, formation of a salt there between an ionic liquid cation and chloride-anion due to ions recombination and partial salt back-extraction. The proposed approach allows estimating corresponding extraction constants. Comparison of calculated and experimentally measured solubility product constants shows that they are in good agreement. It has been determined also that the more the hydrophilicity of the ionic liquids’ cation the more hydrochloric acid is extracted. Furthermore, this model has been utilized to facilitate analysis of thallium transfer into hydrophobic ionic liquids providing insights into the mechanism of metal extraction.
- Research Organization:
- Texas A&M University, College Station, TX (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Nuclear Physics (NP)
- Grant/Contract Number:
- FG02-93ER40773; NA0003180
- OSTI ID:
- 1668865
- Alternate ID(s):
- OSTI ID: 1659335
- Journal Information:
- Separation and Purification Technology, Journal Name: Separation and Purification Technology Vol. 255; ISSN 1383-5866
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Indium and thallium extraction into betainium bis(trifluoromethylsulfonyl)imide ionic liquid from aqueous hydrochloric acid media
Hydrophobic polymerized ionic liquids for trace metal solid phase extraction: thallium transfer from hydrochloric acid media
Journal Article
·
Mon Jan 20 19:00:00 EST 2020
· New Journal of Chemistry
·
OSTI ID:1597480
Hydrophobic polymerized ionic liquids for trace metal solid phase extraction: thallium transfer from hydrochloric acid media
Journal Article
·
Wed May 08 20:00:00 EDT 2019
· New Journal of Chemistry
·
OSTI ID:1529986