Chemistry of inorganic compounds – Oxygen or compound thereof – Metal containing
Patent
1991-04-26
1994-05-31
Bell, Mark L.
Chemistry of inorganic compounds
Oxygen or compound thereof
Metal containing
423592, 423617, 423624, 423625, 501 12, 501128, 501153, C01B 1314
Patent
active
053167520
ABSTRACT:
A process for producing mixed oxides containing an alumina species in which a mixture of a hydrated alumina having a specified surface area (average crystal size), a fluid medium and a compound having the formula M.sub.x A.sub.y wherein M is selected from the group consisting of metals, silicon, boron, arsenic and tellurium, A is selected from the group consisting of oxygen and anions, x is from 1 to 4 and y has a value satisfying said formula depending on the valence of M, is formed into a uniform sol, the sol is recovered from the liquid medium and dehydrated, and the dehydrated product is de-agglomerated to produce a mixed oxide having an average particle size of about 1 micron or less.
REFERENCES:
patent: 4676928 (1987-06-01), Leach et al.
patent: 5030592 (1991-07-01), Komarneni et al.
patent: 5045514 (1991-09-01), Ismail et al.
Read, "Introduction to the Principles of Ceriamic Processing", John Wiley & Sons, 1988, New York, pp, 272-273.
Hoffman et al., "Dishasic Xerogels, A New Class of Materials: . . . " J. Am. Cer. Soc., vol. 67[7] pp. 468-471, (1984).
Mizuno et al., "Preparation of Highly Pure Fine Mullite Powder" J. Am. Ceram. Soc., 72[3] pp. 377-382 (1989).
Komarneni et al. "Application of Compositionally Diphasic Xerogells . . . " J. Am. Ceram. Soc., 69[7] pp. C-155-C-156 (1986).
Barclay David A.
Beggs Ronald L.
Lewis Duane J.
Bell Mark L.
Marcheschi Michael
Vista Chemical Company
LandOfFree
Process for preparing mixed oxides does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for preparing mixed oxides, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing mixed oxides will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1626458