Xuefei LIU |, New York City | Research profile
WEBXuefei Liu. Bauxite is the world's main source of aluminum and typically consists of gibbsite, boehmite, and minor amounts of diaspore. However, bauxite deposits from the North and South China ...
bauxite genesis process
Metallogenic process of Permian Taiping karstic bauxite deposit .
WEBDec 1, 2022 · More than 1 billion tons of bauxite was formed on the karstic surface of the Permian Maokou Formation limestone in the western Guangxi area of Youjiang Basin (YB).
(PDF) The geomicrobiology of bauxite deposits
WEBOct 1, 2010 · Karst bauxites are the most important aluminium resources of Europe and have therefore been intensely mined and studied in the past. However, the genesis of many bauxite occurrences remains ...
Journal of Geophysical Research: Earth Surface
WEBMar 22, 2023 · In addition, karst bauxite samples from around the world have a negative correlation between Al 2 O 3 (average: wt. %) and Fe 2 O 3 (average wt. %) contents (Figure 7), suggesting that Fe loss is a common process during karst bauxite formation. We tested if Fe loss occurred and at what stage of bauxite mineralization by .
Metallogenic process of Permian Taiping karstic bauxite deposit .
WEBJan 1, 2023 · DOI: / Corpus ID: ; Metallogenic process of Permian Taiping karstic bauxite deposit in Youjiang Basin, China article{Sun2023MetallogenicPO, title={Metallogenic process of Permian Taiping karstic bauxite deposit in Youjiang Basin, China}, author={Xuefei Sun and Shujuan Yang and .
The mineralogy and geochemistry of the Pirashkaft bauxite, .
WEBApr 1, 2024 · These features are considered to derive from the similar geochemical behavior of the elements during the bauxite formation process (Zamanian et al., 2016). Upper continental crust (UCC)normalized trace ... Irano–Himalayan belt, NW : constraints on bauxite genesis and the distribution of critical raw materials. J. .
Bauxite residue sinter leach process – phases formation, reaction ...
WEBSep 1, 2021 · The bauxite residue sinter leach process (BRSLP) is one of the most promising methods available for recovering sodium and aluminium from bauxite residue (Klauber et al. 2011).The objective of BRSLP is to convert DSP to soluble NaAlO 2 and insoluble Ca 2 SiO 4 through the addition of CaCO 3 and Na 2 CO sinter product .
Terrestrial deposition processes of Quaternary gibbsite
WEBJun 1, 2018 · Request PDF | Terrestrial deposition processes of Quaternary gibbsite nodules in the Yongjiang Basin, southeastern margin of Tibet, and impliion for the genesis of ancient karst bauxite | The ...
Provenance of bauxite and clay deposits in the Carboniferous .
WEBApr 27, 2022 · The bauxite and clay deposits of Western Henan, loed in the southern part of the North China Craton (NCC), are rich reserves of bauxite ore, and the provenance of this bauxite has received much attention. In this study, Xray diffraction and detrital zircon U–Pb dating (using laser ablation–inductively coupled plasma–mass spectrometry ...
Genesis of the Guangou karstic bauxite deposit in western .
WEBNov 1, 2013 · Fig. 3. Field photographs illustrating the paleokarstic terrain and orebody features of the Gu lands in the Guangou pit; (b) contact between semiweathered limestone and overlying fe limestone in the local highland area. "Genesis of the Guangou karstic bauxite deposit in western Henan, China"
Petrographic Studies of a Part of East Coast Bauxite
WEBJun 26, 2023 · On the basis of an adequate understanding of the genesis of bauxite mineralization, an integrated study has been carried out to analyse geological, statistical and geostatistical characteristics ...
Regional multisources of Carboniferous karstic bauxite deposits .
WEBJun 1, 2021 · The bauxite genesis is recorded in the bauxite geochemical composition as a unique signature of tectonostratigraphic evolution of the different parts of the Croatian Karst, including, for example ...
Genesis of the Danping bauxite deposit in northern Guizhou, .
WEBSep 1, 2022 · In the middle of the WZD area (Fig. 1 B), the Danping bauxite deposit is a superlarge deposit with resources of > 160 million tons and an Al 2 O 3 grade of %– % [Bureau of Geology and Mineral Exploration and Development Guizhou Province (BGMGZ), 2015].The mining region is distinguished by syncline structure with .
Full article: Genesis of pisoliths and of the Weipa Bauxite deposit ...
WEBJan 9, 2009 · The process of pisolith formation occurs over the medium to long term as shown by the very complex internal fabrics of some, indiing many phases of reworking and regrowth. ... Rodenburg, J. K. Geology, genesis and bauxite reserves of West Kalimantan, Indonesia . Bauxite, Proceedings of the 1984 Symposium, Los Angeles, .
Approaches to the Processing of Jamaican Bauxite with High
WEBHollitt M, Kisler J. and Raahauge B, "The Comalco Bauxite Activation Process", Proceedings of 6th International Alumina Quality Workshop, 2002, 115–122. Google Scholar Brown N, "Some studies of the iron mineral transformations during high temperature digestion of Jamaican bauxite", Light Metals, 1974, 825–844.
Provenance and Tectonic Evolution of Bauxite Deposits in the .
WEBJun 9, 2023 · A comprehensive understanding of the genesis and characteristics of bauxite deposits is hence essential. In this study, Machine learning methods (Random Forest and Logistic Regression) are applied to improve the understanding of Tethyan bauxite formation. Our research reveals that the TiO 2 content in Tethyan bauxites is related to .
Reservoir Characteristics and Exploration Significance of the Bauxite ...
WEBSubaerial leaching process of sedimentary bauxite and the discussion on classifiions of bauxite deposits[J]. Journal of Palaeogeography, 2020, 22（5）： 812826. ... The genesis of bauxite and the sedimentary process of its ore deposit in China[J]. Acta Sedimentologica Sinica, 1986, 4（1）： 18. ...
Kinetic Modelling of Different Bauxite Types in the Bayer Leaching Process
WEBJul 1, 2010 · In the Bayer process, the bauxite dissolves in a sodium. hydroxide solution at temperatures ranging from 373 to 543. K depending on the form of alumina in the bauxite [1,10]. Dissolution ...
Genesis of endGuadalupian bauxite and pyrite deposits in the .
WEBarticle{Yang2021GenesisOE, title={Genesis of endGuadalupian bauxite and pyrite deposits in the Youjiang Basin (South China): Insights into the causative link between magmatic events and mass extinction}, author={Shujuan Yang and Qingfei Wang and Xulong Lai and Long Qiao and Ruixue Wang and Yuanxiao Huang and Yizhe Wang}, .
Improvements on physical conditions of bauxite residue following ...
WEBJun 1, 2022 · Introduction. Bauxite residue is a highly alkaline waste discharged from the process of alumina production. In recent years, the global industrial inventory is approximately 5 billion tons, with an annual increase of 200 million tons (Wu et al., 2020).Due to its high salinealkalinity, and potential environmental risk, the .
Genesis of the Guangou karstic bauxite deposit in
WEBNov 1, 2013 · The Guangou bauxite deposit in western Henan, China, is loed in the North China Block and to the north of the North Qinling orogenic belt. The orebody is hosted within the lower member of the Carboniferous Benxi Formation, which overlies unconformably upon the Ordovician Majiagou Formation. In the lower member of the .
Bauxite | Mining, Refining, Alumina | Britannica
WEBbauxite, rock largely composed of a mixture of hydrous aluminum oxides. Bauxite is the principal ore of aluminum. Bauxites vary physically according to the origin and geologic history of their deposits: some deposits are soft, easily crushed, and structureless; some are hard, dense, and pisolitic, or pealike; still others are porous but strong ...
Provenance and oreforming process of Permian lithiumrich bauxite .
WEBMar 1, 2022 · This work aims to obtain highpurity alumina from bauxite by a solvent extraction process followed by a precipitation step from the sulfur leach liquor obtained by the thorough dissolution of Al ...
Genesis of karst bauxitebearing sequences in Baofeng, Henan .
WEBOct 1, 2019 · The bauxite genesis is recorded in the bauxite geochemical composition as a unique signature of tectonostratigraphic evolution of the different parts of the Croatian Karst, including, for example ...
Genesis of Danping bauxite (Northern Guizhou, China) and .
WEBGenesis of Danping bauxite (Northern Guizhou, China) and associated lithium: Evidence from LAICPMS analysis of Albearing minerals ... For brinetype Li deposits, the high Mg/Li ratio leads to a highcost extraction process (Wang et al., 2013a, Wang et al., 2013b; Wang et al., 2019; Wen et al., 2020). Therefore, research on new sedimentary ...
Mixed volcanogenic–lithogenic sources for Permian bauxite .
WEBJul 15, 2016 · Semantic Scholar extracted view of "Mixed volcanogenic–lithogenic sources for Permian bauxite deposits in southwestern Youjiang Basin, South China, and their metallogenic significance" by Wenchao Yu et al. ... Impliions for the genesis of FeTi oxide deposits and Atype granites of SW China. J. Shellnutt B. Jahn. Geology. 2010; 122.
The formation environment of Carboniferous karstic bauxite .
WEBAug 1, 2023 · The denitrifiion was the predominant process at nitrogen cycling in bauxites. ... Impliions for the regional tectonic evolution and bauxite genesis. J. Asian Earth Sci., 98 (2015), pp. 421435, / View PDF View article View in Scopus Google Scholar.
Mineralogical and geochemical evolution of the Bidgol bauxite .
WEBJun 1, 2017 · However, the detailed oreforming process, elemental behaviors during weathering, and the provenance material of the ZSFMB bauxites have long been a matter of debate and remain ambiguous. ... Mineral genesis and distinctive structures within bauxite ores. The genesis and relationship among various minerals in the karst bauxites reflect .
Genesis of certain bauxite profiles from India
WEBMar 10, 1987 · Genesis of certain bauxite profiles from India. An attempt is made to reveal a geochemical compatibility with paleoenvironment to understand the genesis of bauxite deposits that are derived from two different parent rocks. For this purpose two in situ bauxite profiles, one developed over basalt and another over sandstone, have been taken.
Petrological studies on two East Coast bauxite deposits of India, .
WEBApr 1, 1984 · Anatase similarly shows a minor enrichment from the bed rock to the bauxite cap. IMPLICATIONS OF BAUXITE GENESIS The preceeding description of the mineralogy and petrography of the bed rocks, the intervening lithomarge zone, and the overlying bauxite cap brings out vital clues regarding the nature of the bauxitisation process in .
Provenance of Lower Carboniferous Bauxite Deposits in
WEBMar 3, 2021 · A probable outline of the bauxiteformation process on the southern NCC, former weathered residuals and subsequent deposition, is proposed; and a reasonable interpretation that the NQB was ...
Analysis of Geological Characteristics and Genesis of Bauxite at ...
WEBApr 25, 2013 · The geological characteristics of bauxite in Duancun Leigou of He'nan,are similar to other mines in the same minerialization,but there are some differences .By the comparative analysis of lithology,morphology and chemical composition of ore,this article considers the causes obey the three stages of bauxite genesis in the western of He'nan .
Bauxite
WEBThe genesis of only one of them can be adequately explained by the lateritization process. Lateritization usually means that aluminumbearing igneous rocks (like granite) ... The chemical process of bauxite formation is similar in both cases (clay is leached to aluminum hydroxides) but the source material and the general geological situation of ...
Genetic mechanism of superlarge karst bauxite in the northern .
WEBGeochemistry of the early Jurassic Soleiman Kandi karst bauxite deposit, Irano–Himalayan belt, NW : Constraints on bauxite genesis and the distribution of critical raw materials. A. Abedini G. Mongelli M. Khosravi
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