WEBSep 1, 2023 · The formation process of karstic bauxite was complex. Its oreforming materials were transported from various sources and deposited on carbonate rocks, and then formed bauxite through diagenesis (Bárdossy, 1982, Öztürk et al., 2002, Wang et al., 2012a). Ga in karstic bauxite was primarily enriched before diagenesis.
WEBJan 1, 2012 · 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 ...
WEBJun 24, 2019 · Conclusion. The sandy DSP process concept is introduced to address the challenge of processing highsilica bauxite. In the sandy DSP process, the DSP is coarsened by reaction seeding and supersaturation control during an alternative Bayer predesiliion stage. A DSP concentrate, obtained by physical separation from other .
WEBRecently, a breakthrough has been made in the gas exploration of the bauxite rock series from the Permian Taiyuan Formation in the Longdong area, southwestern margin of the Ordos Basin, introducing a new field of gas reservoir exploration. As a new type of reservoir, the study of the bauxite rock series reservoir has significant research value.
WEBFeb 1, 2023 · 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 ...
WEBAlumina is an important industrial appliion material [1]. It is commonly used as microelectronic components, corrosion resistant coatings, chemical alysts and oxidation resistant protective coatings at high temperature [2]. At present, the main production method of alumina in the world is Bayer process [3–9].
WEBJun 28, 2023 · The Bayer process is the main method of alumina production worldwide. The use of lowquality bauxites for alumina production results in the formation of a significant amount of technogenic waste—bauxite residue (BR). The Bayer reductive method is one possible way to eliminate BR stockpiling, but it requires highpressure .
WEBJun 1, 2023 · During the process of bauxite ore formation, supergene weathering and Ga reprecipitation could have led to enrichment in lighter Ga isotopes. This mechanism of isotopic enrichment has the ...
WEBFeb 1, 2019 · The formation of bauxite is an uncommon geological process and requires a confluence of factors, including climate, tectonics, eustasy, geography and geomorphology, vegetation cover, and atmospheric composition (Bárdossy, 1982, Bárdossy, 1994; Combes and Bárdossy, 1996; D'Argenio and Mindszenty, 1995).Price .
WEBJul 21, 2021 · and intense formation of bauxite (and laterite) associated with distinct temporal peaks identified at approximately 2, 12, 16, 35, 48, 55, 65 and 100 Ma (Retallack 2010 ).
WEBOct 15, 2023 · Jiujialu Formation bauxitebearing rock series, Loushanguan Group and Baizuo Formation carbonate rock samples were cleaned with ultrapure water, and subsequently crushed and powdered with an agate mill. ... Du, Y., Yu, W., 2020. Subaerial leaching process of sedimentary bauxite and the discussion on classifiions of .
WEBDOI: /s(22)660047 Corpus ID: ; Enhanced conversion mechanism of Algoethite in gibbsitic bauxite under reductive Bayer digestion process article{Zhou2022EnhancedCM, title={Enhanced conversion mechanism of Algoethite in gibbsitic bauxite under reductive Bayer digestion process}, author={Guotao Zhou and .
WEBAug 1, 2020 · Three stages of bauxite formation are identified: (1) during weathering of regional sedimentary strata, boehmite, kaolinite, and illite were formed; (2) during bauxite deposition, diaspore ...
WEBMay 1, 2000 · The process of lateritic bauxite formation is the process of chemical alteration of an original protolith under surficial conditions, driven by the flow of infiltrating meteoric waters. The infiltrating solutions leach the most soluble components of the rock (silica, alkalies, alkaline earths), leaving a residual material enriched in aluminum ...
WEBApr 5, 2023 · However, the metallogenic mechanism of bauxite is still obscure due to the unclear formation process of the main ore mineral, diaspore. We conducted geological, mineralogical, δ 34 S pyrite, and insitu diaspore trace element analyses on the BaodeXingxian large bauxite deposit in the northern NCC, aiming to clarify the diaspore .
WEBSep 10, 2023 · It will aid in promoting soil formation and ecological rehabilitation of bauxite residue. Bauxite residue is a highly alkaline solid waste generated during the Bayer process for producing alumina. Attempting to transform bauxite residue into a stable soillike substrate using lowcost microbial resources is a highly promising engineering.
WEBJun 26, 2023 · The weathering/lateritisation process continues, resulting in colloidal precipitation of gibbsite from pore water of lateritic residuum and is in progress even in recent period. ... Schellmann, W. (1994) Geochemical differentiation in laterite and bauxite formation. Catena, (2–3), –143. Article Google Scholar
WEBJul 1, 2013 · Initial investigations have provided a first insight into the geology and conditions of lateritic bauxite deposits formation in the WZD area (Jin et al., 2009, Liu, 2007, Wu et al., 2006, Wu et al., 2008, Liu et al., 2010a, Yin, 2009).However, the detailed oreforming process is still ambiguous and the source rock of the WZD bauxite .
WEBApr 1, 2022 · 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 ...
WEBMay 1, 2002 · As such, bauxite formation is the result of distinct climatic and tectonic conditions favorable for sustaining prolonged weathering processes. Bauxite deposits are commonly classified in three genetic types according to mineralogy, chemistry and hostrock lithology (Bárdossy and Aleva, 1990).
WEBMar 1, 2020 · 1. Introduction. PreCenozoic bauxite deposits in China formed mainly during the Carboniferous and Permian (Gao et al., 2015; Yu et al., 2019), contrasting with other parts of the world that record a contemporaneous decrease in or lack of bauxite formation as a result of global cooling and drying during the Late Paleozoic Ice Age (LPIA; .
WEBJul 1, 2022 · Soilformation process is critical to ecological rehabilitation on bauxite residue disposal areas. In this study, a soil column experiment was taken to assess the dynamic variations of soil ...
WEBFeb 17, 2024 · This process led to the loss of Si, the accumulation of Al in situ (Figure 13b), and the formation of bauxite and Alclaystone over the limestone . With the formation of bauxite, Nb, Ta, and Zr in basalt and intermediatefelsic volcanic ash remained in the form of heavy minerals in situ (, rutile, zircon, and anatase), which .
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