Preparation of alumina extrudates

Details Preparation of alumina extrudates Preparation of alumina extrudates

1973-09-24

1976-09-28

Arnold, Donald J.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By mechanically introducing gas into material

106 65, 264 63, 264176R, C04B 3332, B28B 320

Patent

active

039831973

ABSTRACT:
A method of preparing alumina extrudate particles. Finely divided alumina is admixed with from about 2 to about 10 wt. % alumina hydrosol and sufficient water added thereto to produce a dough extrudable at less than about 150 psig. The mixture is then extruded, dried and calcined. The alumina hydrosol functions as a source of alumina as well as a binder and/or lubricant, and obviates the need of extraneous binders or lubricants. The method is particularly useful to produce extruded particles of low average bulk density.

REFERENCES:
patent: 2463979 (1949-03-01), Langrod
patent: 3108888 (1963-10-01), Bugosh
patent: 3274008 (1966-09-01), Braunwarth et al.
Luks, "How They Make Al.sub.2 O.sub.3 Ceramics," Ceramic Industry, 67 [7], pp. 87-89, 110 (1956).

Affiliated with

Also associated with

Rating

Preparation of alumina extrudates does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preparation of alumina extrudates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of alumina extrudates will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2080811