Results 21 to 30 of about 608,534 (199)

Influence of Calcium and Sodium Concentration on the Microstructure of Bentonite and Kaolin [PDF]

Clays and Clay Minerals, 1990
Abstract The influence of added sodium and calcium nitrate electrolyte on the particle aggregates in the colloid fraction of natural bentonite and kaolin was studied. Clays were flocculated in distilled water and various electrolyte concentrations.
Stawinski, Janusz, Wierzchos, Jacek, García-González, M. T.   +2 more
openaire   +2 more sources

Study on Characteristics of Bentonite in Huludao, Liaoning

Kuangchan zonghe liyong, 2023
Huludao is the starting point of the Jinxi-Hartao metallogenic belt. In order to explore the characteristics of Huludao bentonite, six bentonite mines in Huludao were studied.
Hang Yin, Huimin Gao, Zijie Ren, Junfang Guan   +3 more
doaj   +1 more source

Calcium bentonite as reinforcing nanofiller for thermoplastic starch [PDF]

Journal of the Brazilian Chemical Society, 2010
Glycerol-plasticized corn starch materials (TPS), reinforced with calcium bentonite, were prepared by melt extrusion. Scanning electron microscopy was used to visualize extrudates morphology. The effects of clay content and of glycerol content on physical properties of extrudates were evaluated.
Magalhães, Natália F., Andrade, Cristina T.   +1 more
openaire   +3 more sources

Swelling characteristics of Gaomiaozi bentonite and its prediction

Journal of Rock Mechanics and Geotechnical Engineering, 2014
Gaomiaozi (GMZ) bentonite has been chosen as a possible matrix material of buffers/backfills in the deep geological disposal to isolate the high-level radioactive waste (HLRW) in China. In the Gaomiaozi deposit area, calcium bentonite in the near surface
De'an Sun, Wenjing Sun, Lei Fang
doaj   +1 more source

Beneficiation of Nigerian bentonite using local materials

Journal of Petroleum Exploration and Production Technology, 2020
In previous studies, it has been found that the Nigerian bentonite is deficient in terms of its fluid loss and rheological properties which includes yield point. Also, due to its high calcium content and low sodium content as opposed to foreign bentonite,
Kevin C. Igwilo, N. Uwaezuoke, N. Okoli, Franklin T. Obasi, Emeka E. Okoro   +4 more
doaj   +1 more source

BENTONITE - WATER SUSPENSIONS: THE IMPACT ON THE PROTEIN STABILITY OF ISTRIAN MALVASIA WINES [PDF]

Poljoprivreda, 2012
Bentonite is an important enological agent in the white wines production. The effect of three bentonite types (sodium, calcium and sodium / calcium) and two types of water (tap / hard; distilled / soft) was investigated on the doses of bentonite required
Tomislav Plavša, Ingrid Palman
doaj  

Effect of Pre-Fermentative Maceration and Fining Agents on Protein Stability, Macromolecular, and Phenolic Composition of Albariño White Wines: Comparative Efficiency of Chitosan, k-Carrageenan and Bentonite as Heat Stabilisers

Foods, 2021
In this work, the effect of pre-fermentative skin maceration (PFSM) on the chemical composition of the macromolecular fraction, polysaccharides and proteins, phenolic compounds, chromatic characteristics, and protein stability of Albariño monovarietal ...
Inma Arenas, Miguel Ribeiro, Luís Filipe-Ribeiro, Rafael Vilamarim, Elisa Costa, João Siopa, Fernanda Cosme, Fernando M. Nunes   +7 more
doaj   +1 more source

Potassium sorption by calcium‐bentonite (Ca‐b)

Communications in Soil Science and Plant Analysis, 1994
Abstract The kinetics of potassium adsorption from solution to exchangeable phases was investigated on bentonite samples which were first saturated with calcium in the form of CaCl2. Potassium adsorption time was evaluated on Ca‐saturated samples using 125, 150, 200 and 250 μgK/ml solutions, equilibrated for 10, 15, 20, 30, 35, 45, 60, 75, 80 and 120 ...
Doula, M., Ioannou, A., Dimirkou, A., Mitsios, J.   +3 more
openaire   +2 more sources

Characterisation And Properties Of Bentonite/Polypropylene Composite [TN948.B4 N138 2007 f rb]. [PDF]

, 2007
Projek ini melibatkan penggunaan bentonit sebagai pengisi di dalam termoplastik komposit. Objektif pertama kajian ini adalah untuk mengkaji kesan pembebanan bentonit terhadap sifat komposit PP matriks.
Othman, Nadras
core   +1 more source

Thermal analysis of a white calcium bentonite

Journal of Thermal Analysis and Calorimetry, 2010
A white calcium bentonite (CaB) taken from Camlidere (Ankara, Turkey) region was heated at various temperatures between 100 and 1100 °C for 2 h. The mineralogy of the CaB was determined as calcium smectite (CaS), metahalloysite (MH), opal-A (OA), opal-CT (OCT), quartz (Q), feldspar (F), and calcite (C) using the X-ray diffraction patterns of the ...
Bayram, Hale, Onal, Muserref, Yilmaz, Hamza, Sarikaya, Yueksel   +3 more
openaire   +3 more sources