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Title: Aqueous biphasic extraction process with pH and particle control

A process for aqueous biphasic extraction of metallic oxides and the like from substances containing silica. Control of media pH enables efficient and effective partition of mixture components. The inventive method may be employed to remove excess silica from kaolin clay. 2 figs.
Inventors:
;
Issue Date:
OSTI Identifier:
46298
Assignee:
ARCH Development Corp., Argonne, IL (United States) PTO; SCA: 400105; PA: EDB-95:078101; SN: 95001384519
Patent Number(s):
US 5,411,149/A/
Application Number:
PAN: 7-928,790
Contract Number:
W-31109-ENG-38
Resource Relation:
Other Information: PBD: 2 May 1995
Research Org:
Univ. of Chicago, IL (United States)
Country of Publication:
United States
Language:
English
Subject:
40 CHEMISTRY; KAOLINITE; SEPARATION PROCESSES; SILICA; PH VALUE; AQUEOUS SOLUTIONS; PROCESS CONTROL