Date of Graduation
5-2025
Document Type
Thesis
Degree Name
Bachelor of Science in Chemical Engineering
Degree Level
Undergraduate
Department
Chemical Engineering
Advisor/Mentor
Hestekin, Jamie
Abstract
Ion exchange resins are a type of ion exchange material used throughout industry. Their insolubility allows for the exchange of ions and an easy separation of the resin itself. They are used alone in industry, but they are also found in processes such as electrodialysis and electrodeionization. This research investigates the selectivity of chloride form ion exchange resin in the presence of solutions of lactate and formate ions. The work of this thesis is a part of a larger study investigating the conversion and separation of glucose into lactic acid via coupled electrocatalysis and electrodialysis. The results of this study will allow understanding of the selectivity that would be seen when the resin is used in the formation of wafers for wafer electrodeionization. Concentrations of the lactate and formate ion were analyzed with the use of high-performance liquid chromatography. It was determined through varied concentrations of formate and lactate solutions that the resin has a higher selectivity for the formate ion, even in solutions with a higher concentration of lactate. These results prove beneficial to the larger study, as the lactate ion is the targeted component.
Keywords
Ion exchange; electrodeionization
Citation
Coffman, H. M. (2025). Measuring Selectivity of Ion Exchange Resin for use in Activated Wafer Electrodeionization. Chemical Engineering Undergraduate Honors Theses Retrieved from https://scholarworks.uark.edu/cheguht/222
