Production of spheroidal alumina shaped articles

Details Production of spheroidal alumina shaped articles Production of spheroidal alumina shaped articles

1979-08-29

1981-06-16

Parrish, John

Plastic and nonmetallic article shaping or treating: processes

Formation of solid particulate material directly from molten...

252448, 252463, 252464, 252465, 264 56, B01J 3702

Patent

active

042737354

ABSTRACT:
Spheroidal alumina shaped articles are prepared by dispersing an ungelled admixture of an alumina sol and hexamethylenetetramine, in the form of droplets, into a liquid forming medium which is but very slightly miscible with water, said medium being at a temperature of between about 50.degree. and 105.degree. C., next aging the alumina spheres thus shaped at a temperature greater than about 105.degree. C. at superatmospheric pressure, then secondarily aging said alumina spheres in a basic medium, and thence washing, drying and calcining said aged alumina spheres.
The resultant shaped articles are useful, e.g., catalysts or catalyst carriers/supports.

REFERENCES:
patent: 2620314 (1969-05-01), Hoekstra
patent: 3442821 (1969-05-01), Hilfman
patent: 3600129 (1971-08-01), Vesely et al.

Affiliated with

Also associated with

Rating

Production of spheroidal alumina shaped articles does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-155072