Results 11 to 20 of about 13,557 (226)

Heat capacities of aqueous sodium hydroxide/aluminate mixtures and prediction of the solubility constant of boehmite up to 300 °C [PDF]

, 2010
A modified commercial (Setaram C80) calorimeter has been used to measure the isobaric volumetric heat capacities of concentrated alkaline sodium aluminate solutions at ionic strengths from 1 to 6 mol kg-1, with up to 40 mol.% substitution of hydroxide by
Hefter, G., Königsberger, E., May, P.M., Schrödle, S.   +3 more
core   +2 more sources

Adsorption of Phosphate Ion in Water with Lithium-Intercalated Gibbsite

Makara 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, Yuni Krisyuningsih Krisnandi, Rahma Widya, Siti Zahrotul Luthfiyah, Rika Tri Yunarti   +4 more
doaj   +1 more source

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

Учёные 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

Low-Waste Synthesis and Properties of Highly Dispersed NiO·Al₂O₃ Mixed Oxides Based on the Products of Centrifugal Thermal Activation of Gibbsite

ChemEngineering, 2023
This study revealed an increased reactivity of centrifugally thermoactivated products of gibbsite toward aqueous solutions of nickel nitrate at room temperature as well as under hydrothermal conditions. X-ray, thermal, microscopy, adsorption and chemical
Aleksey V. Zhuzhgov, Lyubov A. Isupova, Evgeny A. Suprun, Aleksandr S. Gorkusha   +3 more
doaj   +1 more source

Granulometric Separation of Bauxite Tailings to Metallurgical Processing [PDF]

Materials Research
The beneficiation of bauxite ore generates significant quantities of tailings, primarily composed of kaolinite and residual gibbsite, the latter still amenable to metallurgical recovery.
Elaine Cristina Lima de Melo, Oscar Jesus Choque Fernandez, Murilo Ponciano Emim, Bruno Apolo Miranda Figueira, Nayara Aparecida Fonseca Couto   +4 more
doaj   +1 more source

Relationship between macrofauna, mineralogy and exchangeable calcium and magnesium in Cerrado Oxisols under pasture Relações entre macrofauna, mineralogia, cálcio e magnésio trocáveis em Latossolos do Cerrado sob pastagem

Pesquisa Agropecuária Brasileira, 2009
The objective of this work was to assess the relationship between macrofauna, mineralogy and exchangeable calcium and magnesium in Cerrado Oxisols under pasture.
Pedro Rodolfo Siqueira Vendrame, Robélio Leandro Marchão, Osmar Rodrigues Brito, Maria de Fátima Guimarães, Thierry Becquer   +4 more
doaj   +1 more source

Soil Chemistry and Clay Mineralogy of an Alluvial Chronosequence from the North Carolina Sandhills of the Upper Coastal Plain, USA

Soil Systems, 2021
Temporal changes in soil development were assessed on fluvial terraces of the Little River in the upper Coastal Plain of North Carolina. We examined five profiles from each of six surfaces spanning about 100,000 years.
Bradley E. Suther, David S. Leigh, Larry T. West   +2 more
doaj   +1 more source

Synchrotron Radiation Pair Distribution Function Analysis of Gels in Cements [PDF]

, 2017
The analysis of atomic ordering in a nanocrystalline phase with small particle sizes, below 5 nm, is intrinsically complicated because of the lack of long-range order.
Cuesta-Garcia, Ana Maria, García-Aranda, Miguel Ángel, Gomez-de-la-Torre, Maria de los Angeles, Londono-Zuluaga, Diana, Santacruz-Cruz, Maria Isabel, Vallcorba, Oriol, Zea-Garcia, Jesus D.   +6 more
core   +4 more sources

A micromorphological evaluation of pedogenesis on Isla Santa Cruz (Galápagos) [PDF]

, 2013
Thin sections of about 200 horizons or layers, representing 60 soil profiles in the coastal area and on the windward slopes of Isla Santa Cruz (Galápagos Islands) were analysed.
Stoops, Georges
core   +2 more sources

A comparative study of experimental configurations in synchrotron pair distribution function [PDF]

, 2019
The identification and quantification of amorphous components and nanocrystalline phases with very small crystal sizes, smaller than ~3 nm, within samples containing crystalline phases is very challenging.
Ana Cuesta, Angeles G. De la Torre, Aranda, Billinge, Clearfield, Egami, Jesus D. Zea-Garcia, Miguel A. G. Aranda, Mittemeijer, Nicoleau, Sławiński, Von Dreele, Wright   +12 more
core   +2 more sources