Results 1 to 10 of about 13,557 (226)

Changes in the Glucose Concentration Affect the Formation of Humic-like Substances in Polyphenol–Maillard Reactions Involving Gibbsite [PDF]

open access: yesMolecules
The polyphenol–Maillard reaction is considered one of the important pathways in the formation of humic-like substances (HLSs). Glucose serves as a microbial energy source that drives the humification process.
Nan Wang   +7 more
doaj   +2 more sources

Mesocrystal growth through oriented sliding and attachment of nanoplates [PDF]

open access: yesNature Communications
Oriented attachment is a critical, yet poorly understood, crystal growth pathway based on the self-assembly of nanocrystals. During oriented attachment, solvent-separated particles align and coalesce through forces that enable precise rotation and ...
Xiaoxu Li   +12 more
doaj   +2 more sources

Phase quantification using deep neural network processing of XRD patterns [PDF]

open access: yesIUCrJ
Mineral identification and quantification are key to the understanding and, hence, the capacity to predict material properties. The method of choice for mineral quantification is powder X-ray diffraction (XRD), generally using a Rietveld refinement ...
Titouan Simonnet   +6 more
doaj   +2 more sources

Study on Influencing Factors of Active Silicon Content Determination in Gibbsite

open access: yesKuangchan zonghe liyong, 2022
This paper mainly studies the factors affecting the determination of active silicon content in gibbsite. Active silicon is an important index of gibbsite. A method for the determination of active silicon in gibbsite was established by inductively coupled
Fei Song   +6 more
doaj   +1 more source

The kinetics of the partial dehydration of gibbsite to activated alumina in a reactor for pneumatic transport [PDF]

open access: yesJournal of the Serbian Chemical Society, 2001
The dehidration kinetics of gibbsite to activated alumina was investigated at four different temperatures between 883 K and 943 K in a reactor for pneumatic transport in the dilute two phase flow regime.
Rožić Ljiljana   +4 more
doaj   +3 more sources

Thermally Activated Al(OH)3: Part I—Morphology and Porosity Evaluation

open access: yesCeramics, 2021
Aluminum hydroxide is an essential material for the industrial production of ceramics (especially insulators and refractories), desiccants, absorbents, flame retardants, filers for plastics and rubbers, catalysts, and various construction materials.
Bogdan Stefan Vasile   +8 more
doaj   +1 more source

Mineralogy, geochemistry and parent rock of Décio bauxite-bearing lateritic profile (Rondon do Pará, Eastern Amazon) [PDF]

open access: yesBrazilian Journal of Geology, 2022
Cenozoic world-class bauxite deposits developed on sedimentary sequences of the Parnaíba and Amazon Basins. The Décio pilot mine, excavated in the Rondon do Pará bauxite deposit, exposes a 3 m thick bauxite-bearing lateritic profile on the top of a 350 m
Pabllo Henrique Costa dos Santos   +1 more
doaj   +1 more source

Processing of Low-Quality Gibbsite-Kaolinite Bauxites

open access: yesMetals, 2022
The results of studies on the processing of gibbsite-kaolinite bauxite are presented. The developed technology includes preliminary chemical activation and thermal transformation during enrichment to obtain a concentrate suitable for processing by the ...
Symbat Dyussenova   +4 more
doaj   +1 more source

Acid and Acid-Alkali Treatment Methods of Al-Chloride Solution Obtained by the Leaching of Coal Fly Ash to Produce Sandy Grade Alumina

open access: yesMetals, 2020
Sandy grade alumina is a valuable intermediate material that is mainly produced by the Bayer process and used for manufacturing primary metallic aluminum.
Dmitry Valeev   +3 more
doaj   +1 more source

Behavior of sodium oxalate in seeded precipitation process of sodium aluminate solution

open access: yes工程科学学报, 2018
Sodium oxalate has negative effects on alumina produced by the Bayer process. The behavior of sodium oxalate in the seeded precipitation process of a sodium aluminate solution was investigated. The particle size and morphology of crystallization, as well
FAN Shang, CHEN Wen-mi, LIANG Gao-jie
doaj   +1 more source

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