Abstract. The kaolinite-group minerals kaolinite, dickite, nacrite, halloysite including its metaform and their associates allophane and imogolite are phyllosilicates …
The high relative content of erbium in REM elements of kaolinite clays makes them a promising raw material for obtaining its selective concentrate. According to the …
In this work, the production of dimethyl ether (DME) from methanol over natural kaolin clay modified through impregnation with various percentages of H2SO4, WO3, or ZrO2 catalysts was...
The extraction of aluminum from calcined kaolinite was carried out at fixed acid concentration of 3 M, temperature of 80°C, liquid-to-solid ratio of 12 mL g−1, time of 120 min, and stirring ...
In addition, some kaolin is extracted by hydraulic mining and dredging. Most underground clay mines are located in Pennsylvania, Ohio, and West ia, where the clays are …
Kaolinite as an aluminum-rich clay mineral is widely distributed in kaolin, coal gangue and mill tailings, etc. Herein, alumina extraction from the low-grade kaolin was …
In the first method the kaolinite-urea precursor, obtained by dry grinding, was intercalated further with triethanolamine and the tetraalkylammonium salt was …
The present work aims to increase the alumina percentage recovery (APR) extracted from kaolin via the addition of 0.5–4.0 wt.% charcoal as a thermochemical …
Kaolinite/methanol intercalation composite (KMe) is a key precursor for preparing clay-based inorganic/organic hybrid materials and kaolinite nanoscrolls. …
Kaolin or china clay is a commercial clay composed principally of the hydrated aluminosilicate clay mineral kaolinite. The commercial value of kaolin is based on the mineral's whiteness and its fine, controllable …