Results 81 to 90 of about 269,018 (211)

Replacement of Sand with Bauxite Mining Waste in Concrete Production

Journal of Materials and Engineering Structures, 2019
The use of natural sand as fine aggregate in concrete is becoming problematic due to scarcity and pressure on mining of the resource. Alternate sources such as the use of industrial waste as replacement of natural sand in concrete are gaining popularity ...
Humphrey DANSO, Joseph Kent BOADI
doaj  

Comparative Analysis of Metal Preloading Technologies in Batteries and Capacitors

EcoEnergy, Volume 4, Issue 5, October 2026.
Metal preloading strategies play an important role in efficient batteries and hybrid capacitors to compensate for the consumed metals at the first discharge. This article reviews recent progress in preloading technologies in lithium‐ion and other metal‐ion systems.
Xuexue Pan, Yu Zhang, Zhazira Supiyeva, Qamar Abbas   +3 more
wiley   +1 more source

Full Analysis of Sierra Leone Bauxite and Possibilities of Bauxite Residue Filtration

Journal of Siberian Federal University. Engineering & Technologies, 2016
Chemical analysis, classical or instrumental using ICP and the XRF spectrometry, offers complete information on elemental composition and major chemical constituents of bauxite and bauxite residues resulted from the Bayer process. The XRD diffractometric analysis provides information on quantitative mineralogical composition of these materials and it ...
Dobra, Gheorghe, Kiselev, Anatoly, Filipescu, Laurentiu, Alistarh, Vicol, Anghelovici, Nicolae, Iliev, Sorin   +5 more
openaire   +3 more sources

On the mechanism of sodic removal from bauxite residue and bauxite desilication products (BDP) using acetic acid

, 2019
Bauxite desilication products (BDPs) are fundamental causes of persistent alkalinity and salinity in bauxite residue. Previous studies have shown that significant amounts of acetic acid and Na+ were detected in the pore water of organic matter-amended ...
Peng, Hong, Huang, Longbin, Tuan Nguyen,, Wang, Sicheng   +3 more
core   +1 more source

Quantifying Natural Hydrogen‐Helium Sources and Dynamic Accumulation in Global Sedimentary Basins

Earth's Future, Volume 14, Issue 10, October 2026.
Abstract Despite the scientific and economic importance of hydrogen and helium, their crustal budgets remain poorly quantified. This study systematically assesses the accumulation of natural hydrogen and helium in global sedimentary basins by integrating predictive models for both gases with H2/He ratios.
Yongbo Wei, Quanyou Liu, Thomas J. Algeo, Dongya Zhu, Qingqiang Meng, Huiyuan Xu, Wang Zhang, Xiaoqi Wu, Pengpeng Li, Xiaowei Huang, Yin Fu, Yicheng Mou, Di Zhu, Ziqi Feng, Huaiwei Ni, Fang Hao, Zhijun Jin   +16 more
wiley   +1 more source

Determination of Available Alumina, Active Alumina and Active Silicon in Gibbsite Bauxite by Inductively Coupled Plasma-Optical Emission Spectrometry with Microwave Digestion

Yankuang ceshi, 2017
Available alumina and active silicon in gibbsite bauxite are important indicators for the quality of bauxite. These two components are commonly determined by Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES).
YANG Hui-ling, BAN Jun-sheng, XIA Hui, WANG Shu-Qin, DU Tian-jun, WANG Xiao-qiang   +5 more
doaj   +1 more source

Business Strategies and Environmental Transparency in the Brazilian Mining Sector

Business Strategy &Development, Volume 9, Issue 3, September 2026.
ABSTRACT In recent years, Brazil has experienced severe accidents caused by mining companies. This study aims to analyze the socio‐environmental strategies and environmental transparency practices adopted by the largest Brazilian mining companies following the Mariana and Brumadinho disasters, in light of Legitimacy Theory.
Samuel Carvalho De Benedicto, Cibele Roberta Sugahara, Cândido Ferreira da Silva Filho, Diego de Melo Conti, Luiz Henrique Vieira da Silva, Sônia Regina Barreto Muniz, Juan Fernando Álvarez Rodriguez, Melissa Silva Fernandes   +7 more
wiley   +1 more source

Toward the bioleaching of bauxite residue by Gluconobacter oxydans

Journal of Applied Microbiology
Abstract Aim This project evaluated a biologically mediated strategy to solubilize several rare earth elements and critical raw materials, including scandium, from bauxite residue. This work seeks to expand on previous research on contact leaching with bauxite.
Nathan van Wyk, Dorte Fischer, Derik Wilbers, Susan T L Harrison, Athanasios Kotsiopoulos, Mark Dopson   +5 more
openaire   +5 more sources

Geopolymers as a Sustainable Chemical Platform: From Building Materials to Advanced Functional Applications

The Chemical Record, Volume 26, Issue 9, September 2026.
Geopolymers are presented as a chemically programmable platform whose properties emerge from activation chemistry, nanoscale disorder, and interfacial design. The review highlights sustainability challenges, the shift toward nanoengineered and hybrid systems, and the rise of halloysite‐based architectures enabling tunable structures across scales for ...
Martina Maria Calvino, Lorenzo Lisuzzo, Giuseppe Cavallaro, Stefana Milioto, Giuseppe Lazzara   +4 more
wiley   +1 more source

Inorganic Composite Material Based on Fly Ash, Red Residue from Bauxite Ore for Road Building Projects in Vietnam

, 2011
The paper present solidifying technology based on geopolymer theory of inorganic composite materials from bauxite, red residue from bauxite ore, fly ash and activators for road building projects in Vietnam.
Mitsuhiro Shigeishi, Nguyen van Chanh, Tran Quoc Tho   +2 more
core   +1 more source