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Title: Process for preparing chemically modified micas for removal of cesium salts from aqueous solution

Patent ·
OSTI ID:873217
 [1];  [2];  [3];  [4];  [4];  [4]
  1. 1539 S. Kennicott Dr., Arlington Heights, IL 60005
  2. 208 E. Edgewood La., Palatine, IL 60067
  3. 6646 Davis Rd., Morton Grove, IL 60053
  4. Department of Chemistry, Texas A&M University, College Station, TX 77843
+ Show Author Affiliations

A chemically modified mica composite formed by heating a trioctahedral mica in an aqueous solution of sodium chloride having a concentration of at least 1 mole/liter at a temperature greater than 180 degrees Centigrade for at least 20 hours, thereby replacing exchangeable ions in the mica with sodium. Formation is accomplished at temperatures and pressures which are easily accessed by industrial equipment. The reagent employed is inexpensive and non-hazardous, and generates a precipitate which is readily separated from the modified mica.

Assignee:
Yates; Stephen Frederic (1539 S. Kennicott Dr., Arlington Heights, IL 60005); DeFilippi; Irene (208 E. Edgewood La., Palatine, IL 60067); Gaita; Romulus (6646 Davis Rd., Morton Grove, IL 60053); Clearfield; Abraham (Department of Chemistry, Texas A&M University, College Station, TX 77843); Bortun; Lyudmila (Department of Chemistry, Texas A&M University, College Station, TX 77843); Bortun; Anatoly (Department of Chemistry, Texas A&M University, College Station, TX 77843)
Patent Number(s):
US 6114269
Application Number:
09/479,822
OSTI ID:
873217
Country of Publication:
United States
Language:
English

References (5)

Cation and Anion Exchange Properties of Pillared Clays book January 1990
Zirconia-pillared tetrasilicic fluoromica journal January 1993
Role of Iron in Mica Weathering book January 1988
Kinetics of Potassium Release from Biotite journal November 1958
A Cesium-Selective Ion Sieve Made by Topotactic Leaching of Phlogopite Mica journal March 1988

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Related Subjects

process
preparing
chemically
modified
micas
removal
cesium
salts
aqueous
solution
mica
composite
formed
heating
trioctahedral
sodium
chloride
concentration
mole
liter
temperature
180
degrees
centigrade
20
hours
replacing
exchangeable
formation
accomplished
temperatures
pressures
easily
accessed
industrial
equipment
reagent
employed
inexpensive
non-hazardous
generates
precipitate
readily
separated
readily separated
sodium chloride
aqueous solution
degrees centigrade
chemically modified
composite formed
modified mica
/502/423/