Process for the manufacture of spherical alumina-containing part

Details Process for the manufacture of spherical alumina-containing part Process for the manufacture of spherical alumina-containing part

1976-02-03

1977-03-22

Shine, W. J.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252455R, 252463, 252465, B01J 2104, B01J 2112, B01J 2372, B01J 2386

Patent

active

040135870

ABSTRACT:
Disclosed is process for the preparation of alumina-containing particles, comprising the steps of (a) mixing an aluminum oxide hydrosol containing a hydrate of alumina or activated alumina and an additive component selected from a high molecular weight natural organic material which is insoluble in aqueous solution up to a temperature of 50.degree. C. and carbon with a solution of hydrolyzable base to form a mixture; (b) introducing the mixture in dispersed form into a water-immiscible liquid having a temperature of from about 60 to 100.degree. C., whereby gel particles are formed; (c) aging the gel particles in the liquid at the temperature and subsequently in an aqueous ammonia solution; (d) recovering the aged particles; and (e) calcining the recovered particles.

REFERENCES:
patent: 2408986 (1946-10-01), Marisic et al.
patent: 2697066 (1954-12-01), Sieg
patent: 3416888 (1968-12-01), Notari

Affiliated with

Also associated with

Rating

Process for the manufacture of spherical alumina-containing part 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 the manufacture of spherical alumina-containing part, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the manufacture of spherical alumina-containing part will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1955319