نتایج جستجو برای: world bauxite resources
تعداد نتایج: 673558 فیلتر نتایج به سال:
Spherical particles based on bauxite-type raw materials, commonly referred to as proppants, are state-of-the-art for particle receivers of concentrated solar power plants. Particles heated in a fluidized reactor by focused sunlight and transported heat-exchanger or storage tank. Therefore, key properties absorber high absorptance mechanical endurance. Due their relatively poor content color-giv...
Low-cost magnesium aluminate spinel ceramics were successfully synthesized from the minerals of magnesite(M) and bauxite(B) via one-step sintering method. The effect ratio bauxite to magnesite on phase evolution, microstructure, as well mechanical properties was thoroughly investigated. structural analysis indicated that Mg2+ or Al3+ ions dissolved in lattice formed Mg-rich/Al-rich MgAl2O4 (MA)...
abstract poor reading comprehension can result in failure in using references, benefiting from professional gatherings and resources, keeping up with the growing body of knowledge in the virtual world of the internet, and failing to achieve in efl programs. the purpose of the present quasi-experimental study was to explore the effects of background knowledge and previewing narrative and expos...
In the present study, prediction of Alumina recovery efficiency (A.R.E), the amount of produced red mud (A.P.R), red mud settling rate (R.S.R) and bound-soda losses (B.S.L) in Bayer process red mud has been carried out for the first time in the field. These predictions are based on Lime to bauxite ratio and chemical analyses of bauxite and lime as Bayer process feed materials. Radial basis func...
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