Porous ceramic material

Details Porous ceramic material Porous ceramic material

1995-06-02

1997-03-11

Group, Karl

Compositions: ceramic

Ceramic compositions

Pore-forming

501 12, 501133, C04B 3800, C04B 35624

Patent

active

056101090

ABSTRACT:
A method for producing high surface area, thermally stable, microporous porous ceramic materials involves replacing a portion of the silicon in a sol or gel comprising silica (silicon dioxide) with cations of another metal. The metal-substituted silica sols are dried and fired to yield porous ceramic materials. Similarly, metal-substituted gels are fired to yield porous ceramic materials. When compared with unsubstituted silica materials, the materials thus produced offer advantageous benefits including improved stability in a basic environment, enhanced thermal stability, and advantageous surface properties such as intrinsic negative charge.

REFERENCES:
patent: 2627933 (1953-02-01), Teter
patent: 3678144 (1972-07-01), Shoup
patent: 3717486 (1973-02-01), Fukumoto et al.
patent: 3892580 (1975-07-01), Messing
patent: 3940912 (1976-03-01), Buchner
patent: 4151060 (1979-04-01), Isenberg
patent: 4158621 (1979-06-01), Swift et al.
patent: 4483694 (1984-06-01), Takamura et al.
patent: 4584280 (1986-04-01), Nanao et al.
patent: 4764357 (1988-11-01), Sherif et al.
patent: 4800051 (1989-01-01), Yan
patent: 4801399 (1989-01-01), Clark et al.
patent: 4888033 (1989-02-01), Charpin et al.
patent: 4902307 (1990-02-01), Gavalas et al.
patent: 4929406 (1990-05-01), Abe et al.
patent: 4981676 (1991-01-01), Minet et al.
patent: 5006248 (1991-04-01), Anderson et al.
patent: 5028352 (1991-07-01), Hietala et al.
patent: 5028568 (1991-07-01), Anderson et al.
patent: 5069794 (1991-12-01), Haag et al.
patent: 5104539 (1992-04-01), Andrson et al.
patent: 5108465 (1992-04-01), Bauer et al.
patent: 5110478 (1992-05-01), Haag et al.
patent: 5139540 (1992-08-01), Najjar et al.
patent: 5139541 (1992-08-01), Edlund
patent: 5160352 (1992-11-01), Najjar et al.
patent: 5160358 (1992-11-01), Kondo et al.
patent: 5160455 (1992-11-01), Clark et al.
patent: 5160713 (1992-11-01), Mazanec et al.
patent: 5162301 (1992-11-01), Reich et al.
patent: 5169576 (1992-12-01), Anderson et al.
patent: 5171449 (1992-12-01), Pasternak et al.
patent: 5183482 (1993-02-01), Najjar et al.
patent: 5194200 (1993-03-01), Anderson et al.
patent: 5196380 (1993-03-01), Shadman
patent: 5268101 (1993-12-01), Anderson et al.
patent: 5342431 (1994-08-01), Anderson et al.
Asaeda, et al., "Separation of Alcohol/Water Gaseous Mixtures by Thin Ceramic Membrane," J. Chem. Eng. Japan, 19:72-77 (1986). No month.
Anderson, et al., "Titania and Alumina Ceramic Membranes," 39 J. Memb. Sci., 243-258 (1988). No Month.
Chen, et al., "Sol-Gel Processing of Silica: 1. The Role of the Starting Compounds," J. Non-Crystalline Solids, 81:227-237 (1986). No Month.
Johnson, D. W., "Sol-Gel Processing of Ceramics and Glass," Am. Ceram. Soc. Bull., 64:1597-1602 (1985). No Month.
Kamiya, et al., "Preparation of Ti0.sub.2 Fibers by Hydrolysis and Polycondensation of Ti(O-i-C.sub.3 H.sub.7).sub.4," J. Chem. Eng. Japan, 19:72-77 (1986). No Month.
Leenaars, A. F. M., et al., "The preparation and Characterization of Alumina Membranes with Ultra-fine Pores. Part 1, Microstructural Investigations on Non-supported Membranes," J. Mater. Sci. 19:1077 (1984). No Month.
Leenaars, A. F. M., et al., "The Preparation and Characterization of Alumina Membranes with Ultra-fine Pores. Part 3. The Permeability for Pure Liquids," J. Membrane Sci. 24:245 (1985). No Month.
Leenaars, A. F. M., et al., "The Preparation and Characterization of Alumina Membranes with Ultra-fine Pores. Part 4. Ultrafiltration and Hyperfiltration Experiments," J. Membrane Sci. 24:261 (1985). No Month.
Leenaars, A. F. M., et al., "Porous Alumina Membranes," ChemTech 560-564 (Sep. 1986).
Yoko, et al., "Photoelectrochemical Properties of TiO.sub.2 Films Prepared by the Sol-Gel Method," Yogyo-Kyokan-Shi, 95:13-17 (1987). No Month.
Yoldas, B. E., "A Transparent Porous Alumina," Am. Ceram. Soc. Bull., 54:286-288 (1975). No Month.
Yoldas, B. E., "Alumina Sol Preparation from Alkoxides," Am. Ceram. Soc. Bull., 51:289-290(1975). No Month.
Yoldas, B. E., "Preparation of Glasses and Ceramics from Metal-Organic Compounds," J. Mater. Sci., 12:1203-1208 (1977). No Month.

Affiliated with

Also associated with

Rating

Porous ceramic material does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Porous ceramic material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Porous ceramic material will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-443352