Method of preparing a new ultra-fine particle transition alumina

Details Method of preparing a new ultra-fine particle transition alumina Method of preparing a new ultra-fine particle transition alumina

1989-11-30

1991-12-17

Gorski, Joseph M.

Solid material comminution or disintegration

Processes

241 15, 241 22, B02C 1912

Patent

active

050728865

ABSTRACT:
A novel method of preparing a new transition alumina fractured into ultra-fine particles which have utility inter alia as catalysts. The method of preparing this new alumina fractured into ultra-fine particles comprises: (a) introducing an alkali metal into the pores of a porous alumina, and (b) immersing the alkali metal-treated alumina in water whereupon hydrogen gas is generated and fractures the alumina into ultra-fine particles.

REFERENCES:
patent: 3358937 (1967-12-01), Pearson et al.
patent: 3881661 (1975-05-01), Powers et al.
patent: 4316583 (1982-02-01), Kawano et al.
patent: 4600154 (1986-07-01), Hirota et al.
Co-pending application Ser. No. 855,065, filed Apr. 23, 1986, now continuation-in-part application Ser. No. 015,920, filed Feb. 18, 1987.

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