Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Silicon containing or process of making
Patent
1991-01-22
1992-11-10
Dees, Carl F.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Silicon containing or process of making
502242, 502350, B01J 2106
Patent
active
051622831
ABSTRACT:
There is provided a highly porous amorphous titania or titania/silica material. The material may be prepared by gelling a reaction mixture comprising hydrolyzable titanium and optionally, hydrolyzable silicon compounds, such as titanium diisopropoxide (2,4-pentanedionate) and tetraethylorthosilicate, a nonaqueous solvent, such as ethanol, and water, followed by drying the gel. The titania or titania/silica material may be used as a catalyst, a catalyst support or a sorbent.
REFERENCES:
patent: 2824137 (1958-02-01), Morris
patent: 4176089 (1979-11-01), Cull
patent: 4547557 (1985-10-01), McDaniel
"Structural Investigation of the Hydrolysis-Condensation Process of Titanium Alkoxides Ti(OR).sub.4 (OR=OPr.sup.i, OEt) Modified by Acetylacetone. 2. From the Modified Precursor to the Colloids", Chemistry of Materials, 1989, vol. 1, No. 2, Anne Leaustic, Florence Babonneau and Jacques Livage, pp. 248-252.
Science of Ceramic Chemical Processing, "Use of Mixed Titanium Alkoxides For Sol-Gel Processing", 1986, John Wiley & Sons, Inc., William C. LaCourse and Sunuk Kim, pp. 304-310 (Chapter 10).
"Aerogels and Related Porous Materials", Chemical Reviews, 1989, vol. 89, No. 4, H. D. Gesser and P. C. Goswami, pp. 765-788.
"Structural Investigation of the Hydrolysis-Condensation Process of Titanium Alkoxides Ti(OR).sub.4 (OR=OPr.sup.i,OEt) Modified by Acetylacetone. 1. Study of the Alkoxide Modification", Chemistry of Materials, 1989, vol. 1, No. 2, Anne Leaustic, Florence Babonneau and Jacques Livage, pp. 240-247.
Dees Carl F.
Kenehan, Jr. Edward F.
McKillop Alexander J.
Mobil Oil Corporation
Speciale Charles J.
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