Challenges and opportunities for sustainable valorization of rare earth metals from anthropogenic waste

B Swain - Reviews in Environmental Science and Bio …, 2023 - Springer
Progressively and projected integration of rare earth metals (REMs) in modern technologies,
especially in the clean energy, consumer electronics, aerospace, automotive, and defense …

Waste petroleum fluid catalytic cracking catalysts as a raw material for synthesizing valuable zeolites: A critical overview on potential, applications, and challenges

A Pathak, MS Rana, M Marafi, R Kothari… - Sustainable Materials …, 2023 - Elsevier
The fluid catalytic cracking (FCC) process in petroleum refineries produces enormous
quantities of waste (spent) catalysts as solid waste. Due to stricter environmental …

Recycling of Spent FCC Catalysts: Conversion of Leached Residues to Zeolite ZSM‐5

V Timoshev, LA Haufe, O Busse, H Hamedi… - …, 2024 - Wiley Online Library
The commercial recycling of spent FCC catalyst typically focuses on recovering only 1–3%
of rare‐earth elements, with the remaining residues often disposed of in landfills. Here, we …

Extraction of lanthanum oxide from different spent fluid catalytic cracking catalysts by nitric acid leaching and Cyanex 923 solvent extraction methods

L Alcaraz, OR Largo, FJ Alguacil, MÁ Montes, C Baudín… - Metals, 2022 - mdpi.com
A laboratory-scale procedure was developed to obtain lanthanum oxide from spent fluid
catalytic cracking catalyst, commonly used in the heavy crude oil cracking process. Two …

Reactivation of Spent FCC Catalyst via Oxidation and Acid Treatment

A Abubakar, IE Waba, S Yunusa… - Applied Journal of …, 2020 - revues.imist.ma
Reactivation of spent FCC catalyst for its application in the adsorption of heavy metals from
wastewater was investigated in this research. The most effective reactivation route of spent …

Lanthanum oxide obtention from different spent fluid catalytic cracking catalysts

L Alcaraz, OR Largo, FJ Alguacil, MÁ Montes, C Baudín… - 2021 - preprints.org
An laboratory procedure has been developed to obtain lanthanum oxide from spent fluid
catalytic cracking catalyst, commonly used in the cracking the heavy crude oil process. Two …

THE ESSENTIAL ROLE OF RECYCLING IN DECREASING AMERICA'S DEPENDENCE

MM McCord - Economics, 2018 - apps.dtic.mil
Author: Major Margaret McCord, United States Air Force Thesis: US investment in REE
recycling creates a foundation for long term access and stability that is vital for national …