Improving grinding in a alumina extraction process

Details Improving grinding in a alumina extraction process Improving grinding in a alumina extraction process

2007-05-25

2009-12-15

Rosenbaum, Mark (Department: 3725)

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

Reexamination Certificate

active

07631821

ABSTRACT:
The present disclosure pertains to a method of improving the grinding of a bauxite containing slurry during the grinding stage of an alumina extraction process. Specifically, an effective amount of one or more non-ionic surfactants, polyglycols, polyglycol ethers, anionic surfactants, anionic polymers, or a combination thereof are added to said bauxite containing slurry during the grinding stage of an alumina extraction process to achieve an improved effect.

REFERENCES:
patent: 5601726 (1997-02-01), Cole
patent: 5837211 (1998-11-01), Wang et al.
patent: 6485651 (2002-11-01), Branning

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