Pseudophasic extraction method for the separation of ultra-fine minerals

Patent · Tue Jan 01 00:00:00 EST 2002

OSTI ID:874399

Chaiko, David J ^[1]

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1. Naperville, IL

An improved aqueous-based extraction method for the separation and recovery of ultra-fine mineral particles. The process operates within the pseudophase region of the conventional aqueous biphasic extraction system where a low-molecular-weight, water soluble polymer alone is used in combination with a salt and operates within the pseudo-biphase regime of the conventional aqueous biphasic extraction system. A combination of low molecular weight, mutually immiscible polymers are used with or without a salt. This method is especially suited for the purification of clays that are useful as rheological control agents and for the preparation of nanocomposites.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• DOE Contract Number: W-31109-ENG-38
• Assignee: The University of Chicago (Chicago, IL)
• Patent Number(s): US 6383282
• OSTI ID: 874399
• Country of Publication: United States
• Language: English

Related Subjects

pseudophasic
extraction
method
separation
ultra-fine
minerals
improved
aqueous-based
recovery
mineral
particles
process
operates
pseudophase
region
conventional
aqueous
biphasic
low-molecular-weight
water
soluble
polymer
combination
salt
pseudo-biphase
regime
molecular
weight
mutually
immiscible
polymers
especially
suited
purification
clays
useful
rheological
control
agents
preparation
nanocomposites
molecular weight
water soluble
extraction method
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