Organic or organometallic template mediated clay synthesis

Details Organic or organometallic template mediated clay synthesis Organic or organometallic template mediated clay synthesis

1992-02-19

1994-05-03

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Clay containing

501145, 501141, 4233281, 423404, 106486, 106487, 502 62, 502 80, 502 84, 502251, 502257, 502258, 502259, C04B 3302, C04B 3304

Patent

active

053088085

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.

REFERENCES:
patent: 3887454 (1975-06-01), Hickson
patent: 4388285 (1983-06-01), Rankel et al.
patent: 4619820 (1986-10-01), Valyocsik
patent: 4665110 (1987-05-01), Zones
patent: 4912073 (1990-03-01), Chu
patent: 4982028 (1991-01-01), Dessau et al.
patent: 5047141 (1991-08-01), Chu
patent: 5102643 (1992-04-01), Kresge et al.
patent: 5108725 (1992-04-01), Beck et al.
patent: 5110572 (1992-05-01), Calabro et al.
patent: 5145816 (1992-09-01), Beck et al.
patent: 5156828 (1992-10-01), Degnan et al.
patent: 5156829 (1992-10-01), McCullen et al.
Barrer and Dicks, J. Chem. Soc. (A), 1967 discloses synthetic clays made with organic molecules in the synthesis gel.
Carrado, Thiyagarajan, Winans & Botto Hydrothermal Crystallization of Porphyrin-Containing Layer Silicats Feb. 20, 1991.

Affiliated with

Also associated with

Rating

Organic or organometallic template mediated clay synthesis does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Organic or organometallic template mediated clay synthesis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Organic or organometallic template mediated clay synthesis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2115021