Results 31 to 40 of about 169,539 (299)

A soft sensor for the Bayer process

open access: yesJournal of Mathematics in Industry, 2017
A soft sensor for measuring product quality in the Bayer process has been developed. The soft sensor uses a combination of historical process data recorded from online sensors and laboratory measurements to predict a key quality indicator, namely ...
Vincent Cregan   +2 more
doaj   +1 more source

An efficient route to aqueous phase synthesis of nanocrystalline γ-Al2O3 with high porosity: From stable boehmite colloids to large pore mesoporous alumina [PDF]

open access: yes, 2012
In this paper we emphasise the important role of Pluronic F127 on the porosity of mesoporous alumina prepared from boehmite colloids. By focusing on the F127/boehmite interactions we show how the concepts of interface science may help to predict and ...
Menu, Marie-Joëlle   +9 more
core   +1 more source

Determination of the influence of organic and inorganic impurity on physico-chemical properties of detergent zeolite type 4A

open access: yesZaštita Materijala, 2016
This paper shows the synthesis of detergent zeolite type 4A, on the precise conditions of crystallization with time of 4 hours at 85°C. Zeolites without impurities were synthesized with clean raw material and also zeolites with the addition of organic ...
Ljubica Vasiljević, Željko Ostojić
doaj   +1 more source

Prediction of Red Mud Bound-Soda Losses in Bayer Process Using Neural Networks [PDF]

open access: yesIranian Journal of Chemical Engineering, 2016
In the Bayer process, the reaction of silica in bauxite with caustic soda causes the loss of great amount of NaOH. In this research, the bound-soda losses in Bayer process solid residue (red mud) are predicted using intelligent techniques.
M. Mahmoudian, A. Ghaemi, H. Hashemabadi
doaj  

Examination of the influence of treatments and mineral composition on the point of zero charge of red mud

open access: yesZaštita Materijala, 2018
Red mud represents tailings which remains after the processing of bauxite into alumina by Bayer's proceedings. All the elements are present in the red mud are found in the form of different minerals.
Aleksandar Došić, Gordana Ostojić
doaj   +1 more source

High-pressure spark plasma sintering of MgO-doped transparent alumina [PDF]

open access: yes, 2012
Transparent alumina doped with MgO is fabricated by spark plasma sintering (SPS) under high pressures. An optimum sintering condition explored by changing the combination of the applied pressure and sintering temperature led to an in-line transmission ...
GRASSO, Salvatore   +6 more
core   +1 more source

Effect of Alumina Fibers on Fabrication Process and Characteristics of Alumina Fiber Reinforced Aluminum Alloy Composites [PDF]

open access: yes, 2010
In order to develop the alumina fiber reinforcements optimized to FRMMCs, the effect of characteristics of alumina fibers on the fabrication process and the characteristics of the alumina fiber reinforced Al alloy composites was investigated.
Kagawa, Akio   +2 more
core   +1 more source

Influence of process parameters in ion exchange on the properties of the obtained 5A zeolite powder

open access: yesZaštita Materijala
Zeolite 5A is highly regarded in adsorption processes among zeolites, making it valuable for various commercial applications. It is typically synthesized from 4A zeolite by replacing Na+ ions in the crystal lattice with Ca2+ or Mg2+ ions through an ion ...
Jovana Mitrović   +5 more
doaj   +1 more source

The effect of alumina nanofillers size and shape on mechanical behavior of PMMA matrix composite [PDF]

open access: yesJournal of the Serbian Chemical Society, 2014
Composites with the addition of alumina nanofillers show improvement in mechanical properties. The PMMA polymer was used as a matrix and two different types of nanofillers, having extremely different shapes were added in the matrix to form the ...
Ben Hasan Somaya Ahmed   +6 more
doaj   +1 more source

Treatment effect on the adsorption capacity of alumina for removal fluoride

open access: yesNano Biomedicine and Engineering, 2010
Acid and base treated alumina particles were studied to assess their capacities for the adsorption of fluoride from aqueous solutions. The surface morphology of untreated alumina was analyzed by SEM and its crystal structure was checked by XRD, and was ...
Haixia Wu   +5 more
doaj   +1 more source

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