Process for producing bentonite clays exhibiting enhanced soluti

Details Process for producing bentonite clays exhibiting enhanced soluti Process for producing bentonite clays exhibiting enhanced soluti

1992-03-11

1993-09-28

Group, Karl

Compositions: ceramic

Ceramic compositions

Clay containing

501146, 501147, 106416, 106486, C04B 3304

Patent

active

052486419

ABSTRACT:
A process for upgrading a crude bentonite ore such that it can be used advantageously to prepare unusually high aqueous solution viscosities. This sequence comprises initially subjecting the crude ore to a working or shearing stage, followed by a drying step to about a 5% moisture level. Na.sub.2 CO.sub.3 is then dry-blended with the material, and the sequence is completed by subjecting the mix to a pulverizing step.

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G. R. Alther, "Improvement" Drilling Mud Properties of Low Grade Bentonites by Simultaneous Chemical Activation and Compaction, Interceram, vol. No. 5, pp. 501-503, 1982.

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