Bentonites


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Bentonites

 

colloidal clays that consist primarily of minerals of the montmorillonite group—Al2[Si4O10](OH)2 nH20. The formation of bentonites results from the chemical alteration of volcanic rock (tuffs and ashes), apparently under conditions of the sea floor. Bentonites are widely used in the petroleum industry for the production of boring solutions, as bleaching clays, and as cementing material in foundry molding sands and ceramic bodies. The largest bentonite deposits in the USSR are found in Turkmenia and Georgia; the largest deposits abroad are in the USA, Mexico, Italy, and Rumania.

References in periodicals archive ?
The results obtained in this study demonstrate that the developed peloid with bentonite is effective for anti-cellulite treatment.
IKOQUICK[R]--the innovative solution to maximum quality with select grades of Sodium and Calcium Bentonite with the addition of organic additives.
Supplementation of broiler chickens diet with sodium bentonite had not any adverse effects on their blood serum biochemical characteristics.
Some researchers have investigated hydraulic conductivities of sand-bentonite materials at different dry densities and at different mass ratios of sand and bentonite to design and develop specifications of the materials described above.
Vanderbilt, Norwalk, CT, sells a bentonite called Vanatural.
The deposits of the Calcium Bentonite are the most common among all the types.
Such substances were applied as adsorbents: AG-5 absorbite, valley peat, and also natural sodium and calcium bentonite clays.
Bore-Gel: Specifically blended system using high-quality Wyoming sodium bentonite.