Results 11 to 20 of about 2,147 (208)

Characterization and Optimization of Calcination Process Parameters for Extraction of Aluminum from Ethiopian Kaolinite

International Journal of Chemical Engineering, 2022
The present study aimed to optimize the calcination process parameters (viz., temperature, time, and particles size) for the extraction of aluminum from Ethiopian kaolinite.
Adamu Esubalew Kassa, Nurelegne Tefera Shibeshi, Belachew Zegale Tizazu   +2 more
doaj   +2 more sources

Characteristic Investigations on Ethiopian Kaolinite: Effect of Calcination Temperature on Pozzolanic Activity and Specific Surface Area

Advances in Materials Science and Engineering, 2022
Kaolinite, a clay mineral, is an important industrial mineral which was gainfully utilized with several industrial significances. Towards mineral beneficiation, the present study aimed to investigate the effect of calcination temperature on the ...
Adamu Esubalew Kassa, Nurelegne Tefera Shibeshi, Belachew Zegale Tizazu, S. Venkatesa Prabhu   +3 more
doaj   +2 more sources

Structural evolution of kaolinite in muddy intercalation under microwave heating

Materials Research Express, 2021
The failure of muddy intercalation in the slope is mainly due to the clay minerals which mainly contains the kaolinite. This study investigates the structural evolution of kaolinite in muddy intercalation exposed to the microwave heating of 300 °C–800 °C
Qijun Hu, Qin Yong, Leping He, Yucheng Gu, Junsen Zeng   +4 more
doaj   +1 more source

Plasma Spraying of Kaolinite for Preparing Reactive Alumino‐Silicate Glass Coatings

ChemistrySelect, Volume 7, Issue 47, December 19, 2022., 2022
We thermally treated kaolinite samples using the extreme temperatures of a plasma stream (up to 20 000 K) to produce a highly porous alumino‐silicate glass without any crystallization of new Al−Si oxide minerals. The subspherical melt structures (average diameters in the range of 1.14–1.44 μm) contain up to 40 % closed pore space and represent a ...
Laurence N. Warr, Thorben Wolff, Holger Testrich, Georg Grathoff, Angela Kruth, Rüdiger Foest   +5 more
wiley   +1 more source

Metakaolinite Phosphate Cementitious Matrix: Inorganic Polymer Obtained by Acidic Activation [PDF]

Materials, 2019
This work aims to study an aluminosilicate phosphate cementitious matrix. The cementitious matrix was studied on paste samples. The synthesis of metakaolinite phosphate cement (MKPC) was investigated using calorimetric techniques. A systematic study was performed by emphasizing a broad range of Al/P molar ratios, covering the different behavior of the ...
Katsiki, Antigoni, Hertel, Tobias, Tysmans, Tine, Pontikes, Yiannis, Rahier, Hubert   +4 more
openaire   +3 more sources

Kinetic Analysis of Aluminum Extraction from Ethiopian Kaolinite Using Hydrochloric Acid

International Journal of Chemical Engineering, Volume 2022, Issue 1, 2022., 2022
The aim of this study was kinetic investigations of aluminum extraction from Ethiopian kaolinite with hydrochloric acid. The effects of extraction parameters, namely, solid‐to‐liquid ratio (0.05, 0.075, 0.100, and 0.125 g·mL−1), acid concentrations (2, 3, 4, and 5 M), reaction temperature (50, 60, 70, and 80°C), and time (20, 40, 60, 80, 100, 120, 140,
Adamu Esubalew Kassa, Nurelegne Tefera Shibeshi, Belachew Zegale Tizazu, Nour Sh. El-Gendy   +3 more
wiley   +1 more source

Mineralogy and lithogeochemistry of lower Cretaceous kaolin deposits in the Malha Formation, Southwestern Sinai, Egypt: Implications for the building and construction industry

Journal of Asian Earth Sciences: X, 2022
This study analyses the exposed outcrops of the Lower Cretaceous (Aptian-Albian) kaolin deposits of the Malha Formation, and characterizes them in terms of lithological, mineralogical, and chemical composition.
Hossam K. Sharaka, Hatem M. El-Desoky, Mohamed W. Abd El Moghny, Nabil A. Abdel Hafez, Sayed A.A. Saad   +4 more
doaj   +1 more source

Study on Rheological Mechanism of Cement‐Coal Gangue Cementitious Material (CGCM) Slurry

Geofluids, Volume 2022, Issue 1, 2022., 2022
To explore the rheological mechanism of cement‐coal gangue cementitious material (CGCM) slurry, the effects of the activation temperature (500°C‐900°C) of coal gangue on the initial fluidity, plastic viscosity (η0), and yield stress (τ0) of CGCM slurry were considered, the variation laws of rheological parameters of CGCM slurry at different hydration ...
Xuyang Shi, Qingxiang Cai, Linglei Zhang, Yanlong Chen, Ming Li, Liang Xin   +5 more
wiley   +1 more source

Hydrometallurgical extraction of Al and Si from kaolinitic clays [PDF]

, 2017
Herein is presented the results of a study on the hydrometallurgic extractionand recovery of aluminum and silicon by leaching of kaolinitic clays with HF. Thestudied extraction parameters were: temperature, reaction time, solid/liquid ratio,concentration,
Pinna, Eliana Guadalupe, Rodriguez, Mario Humberto, Rosales, Gustavo Daniel, Suarez, Daniela Silvana   +3 more
core   +3 more sources

Production of Ceramic Membrane Based on Acid- and Alkali-Activated Metakaolinite as Cooling Material for Monocrystalline Silicon Solar Cell

Jurnal Kimia Valensi, 2019
Ceramic membrane based on acid- and alkali-activated metakaolinite has been produced. It was tested as a cooling material for monocrystalline silicon solar cells. Membrane was made by several stages, such as calcination of natural kaolinite at 600 oC for
Septiani Septiani, Wahyu Febri Ramadhy, Angie Islammiyati, Winda Rahmalia   +3 more
doaj   +1 more source