Results 11 to 20 of about 18,650 (253)

In situ ATR‐FTIR spectroscopic study of metformin adsorption on gibbsite and Loring silt loam

open access: yesAgricultural & Environmental Letters
Metformin is an anti‐diabetic drug that has received increased environmental attention due to probable toxic effects on aquatic ecosystems. Although several studies reported metformin adsorption on soils and minerals, spectroscopic evidence of adsorption
Maheen Mehnaz   +3 more
doaj   +2 more sources

Application of Chemometric Methods in X-Ray Diffraction Data on Arabica Coffee Management Soils in Brazil. [PDF]

open access: yesAnal Sci Adv
ABSTRACT Soil mineralogy, analysed by x‐ray diffraction (XRD), is crucial to understanding its variability and influence on physical and chemical properties. However, soil analysis by XRD faces challenges, especially with large sample volumes and subjective interpretation.
da Silva RV   +5 more
europepmc   +2 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

The role of surface hydroxyls on the radiolysis of gibbsite and boehmite nanoplatelets.

open access: yesJournal of Hazardous Materials, 2020
Understanding mechanistic pathways to radiolytic hydrogen generation by metal oxyhydroxide nanomaterials is challenging because of the difficulties of distinguishing key locations of OH bond scission, from structural interiors to hydroxylated surfaces to
Zhemin Wang   +14 more
semanticscholar   +1 more source

Adsorption of Phosphate Ion in Water with Lithium-Intercalated Gibbsite

open access: yesMakara Journal of Science, 2015
In order to enhance adsorption capacity of gibbsite (Al(OH)3 as an adsorbent for the adsorption of phosphate in water, gibbsite was modified through lithium-intercalation.
Riwandi Sihombing   +4 more
doaj   +1 more source

The main types and mineral composition of bauxites of the Kursk Magnetic Anomaly

open access: yesУчёные записки Казанского университета: Серия Естественные науки, 2020
The bauxite-bearing Paleozoic weathering crust of the Kursk Magnetic Anomaly (KMA) is developed along the inter-ore schists of the ferruginous-siliceous formation of the Kursk series.
A.D. Savko, M.Yu. Ovchinnikova
doaj   +1 more source

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