Brian P. Canning
The mining industry is witnessing a resurgence in interest regarding ion exchange resin processes for the recovery of metals from solution, particularly uranium. This study aims to evaluate comparative accepted systems for countercurrent ion exchange (CCIX), emphasizing their cost-effectiveness over traditional fixed bed contactor processes. A thorough examination of the CCIX systems, specifically the Utah and Chem-Sep systems, demonstrates their operational simplicity despite requiring sophisticated controls. Experimental findings indicate that resin loadings of 120 grams per liter of U308 can be achieved through the HIM-IX process, showcasing promising advancements in resin technology that enhance strength, loading capacity, selectivity, and density. The evolution of the resin-in-pulp system and subsequent domination of solvent extraction techniques in the 1960s are reviewed, alongside the reapplication of CCIX systems—a shift attributed to their competitiveness in treating uranium ores today. The paper discusses advancements in designs of continuous ion exchange systems while highlighting the ongoing relevance and potential of CCIX processes in modern metallurgical operations.
@article{ecf918b8-6f95-4053-bdee-28b728886e55,
title={Comparative Accepted Systems for Countercurrent Ion Exchange},
author={Brian P. Canning},
year={2026},
language={en}
}TY - JOUR TI - Comparative Accepted Systems for Countercurrent Ion Exchange AU - Brian P. Canning PY - 2026 LA - en ER -
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