Published: Jan. 1, 2024
Progress in Nuclear Energy, Journal Year: 2024, Volume and Issue: 171, P. 105172 - 105172
Published: March 20, 2024
Language: Английский
Citations
0
Published: Jan. 1, 2024
Waste management strategies in mining processes are shaped according to the characteristics of operating process, type ore, and existing socio-environmental conditions. The implementation budget improvement programs required by waste plan is determined way these issues taken into account during planning. Various harmful wastes some recyclable residues generated recovery rare earth element(s) (REE) other elements from ores containing REE. Mining ore preparation process residues, that is, tailings, pose various problems. In this study, tailings resulting activities REEs were explained, difficulties encountered mentioned, solution suggestions presented making use literature on REE management. can be found secondarily with minerals. Recovery valuable stored mineral piles may possible future. way, countries make strategic plans for or have reserves will able conduct new project studies investments regarding opportunities challenges their environmental impacts, reviewed.
Language: Английский
Citations
0
Recent Innovations in Chemical Engineering (Formerly Recent Patents on Chemical Engineering), Journal Year: 2024, Volume and Issue: 17(4), P. 256 - 280
Published: Aug. 12, 2024
Abstract: The current understanding and development of monazite decomposition technology using sodium hydroxide are examined. Most previous assessments have primarily focused on the post-leaching processing hydroxide, including steps to produce total rare earth oxide product. However, initial leaching process with alkali solution proves be highly significant in practice. It presents numerous problems, such as requirement for fine grinding ore down below 45 microns, substantial excess, extended reaction times achieve desired efficiency. These requirements result increased energy, chemical, equipment costs. This article is discussing conditions based published literature, problems associated this process, underlying reasons, newly proposed variations under pressure a heated ball mill, limitations these variations, unresolved issues. Furthermore, manuscript introduces novel technique, high-intensity ultrasound, support which has been applied technological cases. discussion delves into mechanisms ultrasound its applicability hydroxide.
Language: Английский
Citations
0
Journal of Infrastructure Policy and Development, Journal Year: 2024, Volume and Issue: 8(8), P. 5387 - 5387
Published: Aug. 16, 2024
Environmental regulation is globally recognized for its crucial role in mitigating environmental pollution and vital achieving the Paris Agreement United Nations Sustainable Development Goals. There a current gap comprehensive overview of significance research, necessitating high-level insights. This paper aims to bridge this through an exhaustive bibliometric review existing research. Employing analysis, study delineates publication trends, identifies leading journals, countries, institutions, scholars. Utilizing VOSviewer software, we conducted frequency centrality analysis keywords visualized keyword co-occurrences. research highlights hotspots central themes field, including “innovation”, “performance”, “economic growth”, “pollution”. Further trends underscores knowledge gaps potential future directions. Emerging topics investigation include “financial constraints”, “green finance”, credit”, “ESG”, “circular economy”, “labor market”, “political uncertainty”, “digital transformation”, “exports” “mediating effects”. Additionally, “quasi-natural experiments” “machine learning” have emerged as cutting-edge methodologies domain. The focus shifting from analyzing impact on “innovation” innovation” “emissions” “carbon emissions”. provides structured understanding, thereby guiding subsequent field.
Language: Английский
Citations
0
Published: Jan. 1, 2024
Citations
0