Process for preparing crystalline mixed metal oxides

Details Process for preparing crystalline mixed metal oxides Process for preparing crystalline mixed metal oxides

1991-06-07

1993-09-07

Lewis, Michael

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

423598, 423DIG15, C01G 2304, C04B 3546, C04B 3548, C04B 3549

Patent

active

052426742

ABSTRACT:
An improved process for preparing crystalline mixed metal oxides, such as barium titanate, in which an organometallic compound is reacted simultaneously and continuously with a solution of a divalent metal ion in an alkaline high turbulence energy environment, the reaction product is crystallized, and the crystals are isolated and may be calcined.

REFERENCES:
patent: 2948628 (1960-08-01), Wainer
patent: 3292994 (1966-12-01), Kiss
patent: 3413083 (1968-11-01), Daendliker
patent: 3577487 (1971-05-01), Gall et al.
patent: 3647364 (1972-03-01), Mazdiyashi
patent: 3794299 (1974-02-01), Wagner et al.
patent: 3796793 (1974-03-01), Metzer et al.
patent: 4636378 (1987-01-01), Pastor et al.
patent: 4696810 (1987-09-01), Shirasaki et al.
patent: 4764493 (1988-08-01), Lilley et al.
patent: 4832939 (1989-05-01), Menashi et al.
patent: 4863883 (1989-09-01), Menashi et al.
patent: 4898843 (1990-02-01), Matsushita et al.
"An Aqueous Synthesis of Barium Titanate", by S. Flaschen JACS 77 6194 (1955).
"Preparation of High-Purity Submicron Barium Titanate Powders", by K. S. Mazdiyashi et al., JACS 52, No. 10 (1969).
"Chemical Processing of (Ba,Sr)(Ti,Zr)O.sub.3 Perovskite Ceramics", by F. Chaput et al., Journal of Materials Science Letters 6 (1987), pp. 1110-1112.
European Search Report for Application Number EP 89 300,263.

Affiliated with

Also associated with

Rating

Process for preparing crystalline mixed metal 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 crystalline mixed metal oxides, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing crystalline mixed metal oxides will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-485941