Masters Theses

Keywords and Phrases

Carrier Comparison; Demulsification; Emulsion Liquid Membrane; Heavy Metal Extraction; Phosphoric Acid; Ultramafic rocks

Abstract

The work is organized into two main papers supported by experimental and comparative studies using Emulsion Liquid Membrane (ELM) systems. The first paper explores the individual extraction of heavy metals (Cd, Cr, As, Ni) from synthetic phosphoric acid using Alamine 336 and D2EHPA as carriers. Alamine 336 achieved the highest extraction efficiency (>90%) and stability, offering a promising route to reduce toxic impurities in fertilizer-grade acid. The second paper examines the selective separation of Ni2+ and Co2+ from various acidic solutions using the ELM configuration. Systematic variation of carriers, stripping agent and feed acidity, clarified transport mechanisms and stability, providing a foundation for Nickel/Cobalt recovery from complex solutions. Together, these studies advance sustainable resource engineering by coupling ELM technology with circular-economy principles for cleaner production and future energy applications.

Advisor(s)

Ma, Hongyan
Al-Dahhan, Muthanna H.

Committee Member(s)

Elazab, Hany A.
Smith, Joseph D.

Department(s)

Chemical and Biochemical Engineering

Degree Name

M.S. in Chemical Engineering

Publisher

Missouri University of Science and Technology

Publication Date

Fall 2025

Journal article titles appearing in thesis/dissertation

Paper I, found on pages 18-52, has been submitted for publication in the Journal of Environmental Chemical Engineering, in August 2025.

Paper II, found on pages 53-85, is intended for submission.

Pagination

xii, 94 pages

Note about bibliography

Includes_bibliographical_references_(pages 89-93)

Rights

© 2026 Nouhaila Filali , All Rights Reserved

Document Type

Thesis - Open Access

File Type

text

Language

English

Thesis Number

T 12564

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