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 — A substantial amount of bauxite tailings (BTs) at abandoned mine sites have been stored in waste reservoirs for long periods, leading to significant land occupation and environmental degradation. Although many studies of the resource utilization of BTs were conducted to address this challenge, there is still a lack of efforts to systematically …

 — 2020 Low-cost ceramic proppants were successfully prepared from natural bauxite and solid waste coal gangue via CaCO 3 additive. 40 wt% of bauxite in raw materials was replaced by coal gangue, which ... Corundum-mullite ceramic proppant was prepared by granulation and sintering with low-grade bauxite as the main raw materials …

Environmentally clean ceramics from printed circuit board. WebOct 15, 2017 The main purpose of this study was the development of new ceramic composites from three industrial wastes printed circuit board, red mud from bauxite processing and steel slag, completely replacing clay and sand as traditional natural raw materials.Rectangular test specimens …

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 — Summary This chapter contains sections titled: Introduction Classification And Characteristics of Digestion Processes And Equipment Behavior of Impurities Minerals in Bauxite Additives in the Prehe...

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 — International Journal of Applied Ceramic Technology is a ceramics journal from the American Ceramic Society (ACerS) publishing applied ceramics research. Abstract The mullite ceramics with excellent properties were prepared using traditional sintering method, and the starting material was low-grade bauxite without any other additives in …

Bauxite proppant, also known as ceramic proppant, is an engineered material used in hydraulic fracturing (fracking) to enhance the extraction of oil and natural gas from unconventional reservoirs.. The most common proppant is sand, but there is growing interest in engineered proppants. Engineered proppants are made from ceramics, …

 — In some bauxite mines, white bauxite occurs along with reddish brown metallurgical grade ore, and they can be separated during mining and accumulated for calcination and value addition. Among the value-added bauxite products, the calcined bauxite dominates, which is a raw material for high quality refractory, abrasives, castable …

 — Hu et al. [14] published a brief overview of different proppant types and amounts used in stimulation designs in the Bakken shale play between 2011 and 2013. The results are based on four case studies that focused on 72 wells in four different fields and the production rates were compared based on the 270 day production data.

 — DOI: 10.1016/J.MATLET.2016.02.090 Corpus ID: 138840211; Low-temperature sintering of bauxite-based fracturing proppants containing CaO and MnO2 additives @article{Zuolei2016LowtemperatureSO, title={Low-temperature sintering of bauxite-based fracturing proppants containing CaO and MnO2 additives}, author={Liu …

 — After three years of growth, the Omani bauxite market decreased by -15.4% to $3.4M in 2023. Overall, consumption recorded a slight slump. Over the period under review, the market reached the maximum level at $12M in 2015; however, from 2016 to 2023, consumption remained at a lower figure.

ceramic proppant in line with industry standards were successfully prepared. Moreover, the eects of CaO content on the bulk density and breakage ratio for low-grade bauxite-based ceramic proppant with dierent sintering temperatures were systematically explored. The phase composition, microstructure of ceramic proppant and the specic action

certain amount of bauxite tailings, but high equipment costs and technical difficulties were reported. Mendes et al. [23] collaborated on the preparation of clay bricks using bauxite ... Table2shows the ceramic material's ingredients. The maximum content of Fe2O3 is …

 — Bauxite tailings are mainly composed of Al 2 O 3 and SiO 2, and bauxite tailings from different mining and production areas may also contain Fe 2 O 3, TiO 2, and other substances.Bauxite tailings via the beneficiation Bayer process may also contain some Na 2 O [13,14,15,16,17,18].There are multiple methods to utilize bauxite tailings …

Oil‑based drilling cutting pyrolysis residues (ODCPRs), bauxite, and sintering additives were applied to manufacture ceramic proppants with low density and high strength in this work. The eect ...

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 — Bauxite residues from alumina production. Aluminium production consists of two key stages: The first is alumina refining (Bayer process), which involves the generation of alumina from bauxite ore; the second stage is aluminium smelting (Hall–Héroult), the process of transforming alumina into aluminium.67 Most of the world's alumina is …

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 — Section snippets Materials. Natural bauxite was obtained from the Yangmu area in Sichuan Province, China. This bauxite, which was used as a starting material, contained 56.06 wt% Al 2 O 3, 25.76 wt% SiO 2, 0.41 wt% CaO, 2.15 wt% TiO 2, 1.24 wt% Fe 2 O 3, 0.17 wt% Na 2 O, and 13.81 wt% ignition loss. CaO and MnO 2 were used as …

 — Section snippets Preparation of the bauxite ceramic membranes. The details of the preparation process of the bauxite ceramic membranes are shown as follows: 37.00 g bauxite raw powders (Zhengzhou Deren Naihuo Cailiao, Inc), 1.48 g Polyvinyl pyrrolidone (PVP.) polymer additive, 9.00 g Polyethersulfone (PESf, Solvay Advanced Polymer) …

 — Introduction. The Bayer process used in commercial alumina manufacturing produces red mud (RM) as a waste [1]. Red mud is highly alkaline (pH = 10–12.5) [2] and adversely impacts the environment.Generally, approximately one to two tons of bauxite residues are generated for each ton of alumina produced and in order to protect the …

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Top Suppliers of Bauxite to Oman in 2022: India (8.7K tons) Brazil (2.7K tons) United Arab Emirates (1.3K tons) United States (0.3K tons) Bauxite Exports in Oman. In 2022, overseas shipments of bauxite were finally on the rise to reach 11 tons for the first time since 2019, thus ending a two-year declining trend.

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 — The application of alumina ceramics is limited due to their expensive raw materials and high sintering temperatures.In this research, low cost bauxite-based …

 — Low-cost ceramic proppants were successfully prepared from natural bauxite and solid waste coal gangue via CaCO3 additive. 40 wt% of bauxite in raw materials was replaced by coal gangue, which ...

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