Process for producing zirconium based granules

Details Process for producing zirconium based granules Process for producing zirconium based granules

1990-05-11

1991-10-01

Dixon, Jr., William R.

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

423266, 501103, 501104, C01G 2502

Patent

active

050532146

ABSTRACT:
Zirconium based granules are produced by the steps of forming an aqueous solution of a zirconium compound such as zirconium acetate, combining the aqueous solution with a phase stabilizer, and then heating the solution to evaporation thereby forming amorphous zirconium based granules.
In an alternate embodiment, an alcohol solution of a zirconium compound such as zirconium propoxide in propanol is acidified and hydrolyzed with water. The partially or fully hydrolyzed zirconium complex is mixed with a phase stabilizer to form a homogeneous solution. The solution is then subjected to evaporation by heat to form amorphous zirconium based granules.
Zirconia fibers are produced by making aqueous solutions of the amorphous zirconium based granules containing the phase stabilizer to the desired viscosity, fiberizing the solution, and finally converting the fibers under appropriate conditions.

REFERENCES:
patent: 3334962 (1967-08-01), Clearfield
patent: 4501818 (1985-02-01), Rossi
patent: 4664894 (1987-05-01), Suzuki et al.
patent: 4719091 (1988-01-01), Wusirika
patent: 4927622 (1990-05-01), Jada

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