Production of improved catalyst-type particles using length and density grading
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 19, 1988
Issued Date -
N/A
app pub date -
Aug 7, 1986
filing date -
Mar 10, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A spent hydrotreating catalyst having carbonaceous and metallic deposits comprising generally cylindrical, free flowing particles of regular geometric shape having substantially the same diameter but of varying length is stripped, length graded, density graded using an upward flow of gas through an inclined, vibrating surface, and regenerated to achieve catalyst activity very near that of a fresh catalyst.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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