Por: MSc. Joe T. Valerio Yachachin, Dr. Juan Rodríguez y Dra. María Quintana Cáceda, Universidad Peruana Cayetano Heredia y Universidad Nacional de Ingeniería.AbstractThis paper presents the results of the Energy Dispersive X-Ray Fluorescence and Inductively Coupled Plasma Mass Spectrometry (IPC-MS) characterization obtained in the different stages of rare earth recycling of Phillips branded fluorescent lamps compared with generic products available in the Peruvian market. Results suggest that the rare earth elements present before recycling are: cerium (Ce), europium (Eu), lanthanum (La), terbium (Tb) and yttrium (Y). In addition, fluorescent lamps of this brand have a higher percentage of rare earths by mass than generic ones.Once the fluorescent powder was characterized, we proceeded to use the multi-stage acid leaching as a working method for recycling, obtaining as a relevant result the extraction of yttrium in its totality.