PDF

Floatability of rare earth phosphors fro

T. Hirajima, A. Bissombolo

2026enwastephosphorflotationzeta-potentialcollectors

Abstract

Language:

This study investigates the feasibility of using flotation for recovering rare earth phosphors from waste fluorescent lamps by measuring the zeta-potential of the phosphor materials. A series of tests were conducted on pure specimens, including white (calcium halo-phosphate), red, green, and blue (rare earth) phosphors, as well as actual waste materials. The experiments aimed to explore the effects of cationic (dodecyl ammonium acetate, DAA) and anionic (sodium dodecyl sulfate (SDS) and sodium oleate (NaOl)) collectors on floatability across different pH ranges. Results indicated that the application of flotation to actual discarded waste phosphors produced a two-stage separation scheme yielding sink products with compositions of 17.7–23.8% and 21.5–25.9% rare earth phosphors for DAA and SDS flotation, respectively. Recovery rates and Newton’s efficiencies were found to be approximately 70–90% and 0.26–0.37 for DAA flotation, as well as 66–82% and 0.18–0.20 for SDS flotation. This research highlights the potential of flotation as an effective method for recovering valuable materials from waste streams.

Download

Cite This Work

@article{94c0f957-d567-4dc6-866d-6c8c2e64e465,
  title={Floatability of rare earth phosphors fro},
  author={T. Hirajima and A. Bissombolo},
  year={2026},
  language={en}
}
TY  - JOUR
TI  - Floatability of rare earth phosphors fro
AU  - T. Hirajima
AU  - A. Bissombolo
PY  - 2026
LA  - en
ER  -

Similar Items

INFLUENCE DE LA CONCENTRATION DU COLLECTEUR SIBX ET SON AJOUT EN APPOINT SUR LES PERFORMANCES DE LA FLOTTATION « Cas de sa préparation et son ajout au concentrateur de kamoa 1 »

SAMBA FAILA Alison, Prof. Dr IrJacobs MASIALA

Ce travail vise à évaluer l'influence de la concentration du collecteur SIBX et de son ajout dans différentes cellules de flottation du concentrateur

2024frPDF

Proceedings of the Metallurgical Society of the Canadian Tumilty, J.A. ( WeLib.org )

2026enPDF

Extractive Metallurgy of Copper, Fifth Edition Mark E. Schlesinger, Matthew J. King, Kathryn C. Sole, ( WeLib.org )

Mark E. Schlesinger, Matthew J. King

This book presents a comprehensive overview of the principles and practices of copper extraction metallurgy. The objective is to provide both a theore

2026enPDF

Metal Casting Processes

Unknown, Unknown

This chapter discusses metal casting processes, highlighting the diversity and common characteristics among them. The objective is to elucidate the fu

2023enPDF

The Nature of Solid Iron and Its Grain Structure

Unknown, Unknown

This study focuses on the fundamental characteristics of solid iron, which is predominantly composed of iron atoms and provides a basis for understand

2023enPDF

775134358 PROJET METALLURGIE GENERALE POURBAIX

2026enPDF