Process for the preparation of alumina agglomerates
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 14, 1993
Issued Date -
N/A
app pub date -
Apr 2, 1992
filing date -
Dec 23, 1980
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Provided is a process for preparing alumina agglomerates which comprises: (i) treating agglomerates of active alumina with an aqueous medium comprising at least one acid making it possible to dissolve at least part of the alumina and at least one compound providing an anion capable of combining with aluminum ions in solution, (ii) subjecting the agglomerates to a hydrothermal treatment at a temperature in the range of from about 80.degree. C. to about 250.degree. C., and then (iii) thermally activating the agglomerates at a temperature in the range of about 500.degree. C. to about 1100.degree. C. The resulting alumina agglomerates possess exceptional mechanical strength, heat resistance and hydrothermal resistance and are useful as catalysts or catalyst supports.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully