Results 21 to 30 of about 294,861 (287)

Influence of Two Kinds of Red Mud on the Melting Temperature of Coal Ash in Ningxia

Kuangchan zonghe liyong, 2023
This is an essay in the field of metallurgical engineering. Bayer red mud and sintered red mud were added to Ningxia coal in a certain proportion to study the influence of the two different red mud on the ash melting temperature of Ningxia coal. Factsage
Yan Wen
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A review of the potential for rare earth element resources from European red muds: examples from Seydişehir, Turkey and Parnassus-Giona, Greece [PDF]

, 2016
ArticleRare earth elements (REE) are viewed as ‘critical metals’ due to a complex array of production and political issues, most notably a near monopoly in supply from China.
Deady, EA, Goodenough, K, Mouchos, E, Wall, F, Williamson, BJ   +4 more
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Strength and leaching characteristics of red mud (bauxite residue) as a geomaterial in synergy with fly ash and gypsum

Transportation Research Interdisciplinary Perspectives, 2022
Red mud (Bauxite residue) comprises microscopic particles and other chemical constituents that pose a major threat to the environment. The most common solution to resolve issues related to any solid waste is its reuse in construction.
K. Sarath Chandra, S. Krishnaiah
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Physicochemical and Microstructural Properties of Red Muds under Acidic and Alkaline Conditions

Applied Sciences, 2020
The main purpose of this study was to characterize the mineral and chemical composition of typical red muds in China. Changes in the physicochemical and microstructural properties of red muds collected from the Shanxi and Shandong provinces were ...
Qingke Nie, Youdong Li, Guohui Wang, Bing Bai   +3 more
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Electrokinetic of red mud

IOP Conference Series: Earth and Environmental Science, 2019
Abstract Red mud - a bauxite residue, is a by-product of the Bayer Process for refining bauxite to alumina. Red mud is highly alkaline, due to the sodium hydroxide utilization to purify bauxite from silicate and other impurities. In order to produce one ton of aluminium, it will be yielded 0.8 to 1.5 tons of red mud is produced as by ...
A J Sipayung, D T Suryaningtyas, B Sumawinata   +2 more
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Bio-mining of Lanthanides from Red Mud by Green Microalgae

Molecules, 2019
Red mud is a by-product of alumina production containing lanthanides. Growth of green microalgae on red mud and the intracellular accumulation of lanthanides was tested. The best growing species was Desmodesmus quadricauda (2.71 cell number doublings/day)
Mária Čížková, Dana Mezricky, Marian Rucki, Tivadar M. Tóth, Vít Náhlík, Vojtěch Lanta, Kateřina Bišová, Vilém Zachleder, Milada Vítová   +8 more
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Preparation of CaO–SiO2–Al2O3 inorganic fibers from melting-separated red mud

High Temperature Materials and Processes, 2023
To investigate the feasibility of preparing CaO–SiO2–Al2O3 inorganic fibers with melting-separated red mud, the properties of the melting-separated red mud were analyzed by X-ray fluorescence, X-ray diffraction, and differential thermal-thermogravimetric
Du Peipei, Zhang Yuzhu, Long Yue, Xing Lei   +3 more
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A review of the engineered treatment of red mud: Construction materials, metal recovery, and soilization revegetation

Results in Engineering
Red mud, known as bauxite residue, is an alkaline solid waste generated during alumina production. Globally, the stockpile of red mud is about 3 billion tons and is increasing at a rate of 150 million tons per year.
Kai Jia, Zhenxing Zhou, Shiv Vendra Singh, Chongqing Wang   +3 more
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Experimental Research on the Bearing Properties of Red Mud Geopolymer Foundations

Frontiers in Earth Science, 2022
In this study, the mechanical properties of composite foundations in red mud ground were examined, and the reinforcement effect of composite foundation dams with mixed geopolymer piles of fly ash and red mud were determined.
Haiqing Zhang, Haiqing Zhang, Lusheng Qin, Lusheng Qin, Qingke Nie, Qingke Nie, Yinghui Wang, Xiangxin Jia   +7 more
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Investigation on the mechanical and microstructure properties of masonry cement-red mud-carbide slag-based paste

Case Studies in Construction Materials
The high alkalinity and complex phase composition of red mud pose significant challenges for its direct utilization. The construction industry is widely regarded as the most viable option for large-scale consumption of red mud to mitigate its continuous ...
Xiaoqian Cen, Yaqing Zhang, Hongen Zhang
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