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Title: Organic or organometallic template mediated clay synthesis

Abstract

A method for incorporating diverse Varieties of intercalants or templates directly during hydrothermal synthesis of clays such as hectorite or montmorillonite-type layer-silicate clays. For a hectorite layer-silicate clay, refluxing a gel of silica sol, magnesium hydroxide sol and lithium fluoride for two days in the presence of an organic or organometallic intercalant or template results in crystalline products containing either (a) organic dye molecules such as ethyl violet and methyl green, (b) dye molecules such as alcian blue that are based on a Cu(II)-phthalocyannine complex, or (c) transition metal complexes such as Ru(II)phenanthroline and Co(III)sepulchrate or (d) water-soluble porphyrins and metalloporphyrins. Montmorillonite-type clays are made by the method taught by U.S. Pat. No. 3,887,454 issued to Hickson, Jun. 13, 1975; however, a variety of intercalants or templates may be introduced. The intercalants or templates should have (i) water-solubility, (ii) positive charge, and (iii) thermal stability under moderately basic (pH 9-10) aqueous reflux conditions or hydrothermal pressurized conditions for the montmorillonite-type clays.

Inventors:
 [1];  [2];  [2]
  1. (Bolingbrook, IL)
  2. (Downers Grove, IL)
Issue Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
869277
Patent Number(s):
5308808
Assignee:
United States Department of Energy (Washington, DC) ANL
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
organic; organometallic; template; mediated; clay; synthesis; method; incorporating; diverse; varieties; intercalants; templates; directly; hydrothermal; clays; hectorite; montmorillonite-type; layer-silicate; refluxing; silica; sol; magnesium; hydroxide; lithium; fluoride; days; presence; intercalant; results; crystalline; products; containing; dye; molecules; ethyl; violet; methyl; green; alcian; blue; based; cu; ii; -phthalocyannine; complex; transition; metal; complexes; ru; phenanthroline; iii; sepulchrate; water-soluble; porphyrins; metalloporphyrins; taught; 887; 454; issued; hickson; jun; 13; 1975; variety; introduced; water-solubility; positive; charge; thermal; stability; moderately; basic; ph; 9-10; aqueous; reflux; conditions; pressurized; silica sol; products containing; thermal stability; metal complexes; transition metal; organic dye; dye molecules; metal complex; lithium fluoride; magnesium hydroxide; silicate clay; hydrothermal synthesis; /501/106/423/502/

Citation Formats

Gregar, Kathleen C., Winans, Randall E., and Botto, Robert E. Organic or organometallic template mediated clay synthesis. United States: N. p., 1994. Web.
Gregar, Kathleen C., Winans, Randall E., & Botto, Robert E. Organic or organometallic template mediated clay synthesis. United States.
Gregar, Kathleen C., Winans, Randall E., and Botto, Robert E. Sat . "Organic or organometallic template mediated clay synthesis". United States. https://www.osti.gov/servlets/purl/869277.
@article{osti_869277,
title = {Organic or organometallic template mediated clay synthesis},
author = {Gregar, Kathleen C. and Winans, Randall E. and Botto, Robert E.},
abstractNote = {A method for incorporating diverse Varieties of intercalants or templates directly during hydrothermal synthesis of clays such as hectorite or montmorillonite-type layer-silicate clays. For a hectorite layer-silicate clay, refluxing a gel of silica sol, magnesium hydroxide sol and lithium fluoride for two days in the presence of an organic or organometallic intercalant or template results in crystalline products containing either (a) organic dye molecules such as ethyl violet and methyl green, (b) dye molecules such as alcian blue that are based on a Cu(II)-phthalocyannine complex, or (c) transition metal complexes such as Ru(II)phenanthroline and Co(III)sepulchrate or (d) water-soluble porphyrins and metalloporphyrins. Montmorillonite-type clays are made by the method taught by U.S. Pat. No. 3,887,454 issued to Hickson, Jun. 13, 1975; however, a variety of intercalants or templates may be introduced. The intercalants or templates should have (i) water-solubility, (ii) positive charge, and (iii) thermal stability under moderately basic (pH 9-10) aqueous reflux conditions or hydrothermal pressurized conditions for the montmorillonite-type clays.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {1}
}

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