Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Method for the recovery of a tungsten-containing catalyst from coke containing nickel and vanadium

Method for the recovery of a tungsten-containing catalyst from coke containing nickel and vanadium

US Patent 4501820 · Granted Feb 26, 1985

Estimated economic value: $21,454,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Low severity fluid coking1989
Feed injection method to prevent coking on the walls of transfer line reactors1985
Low severity delayed coking1985
Delayed coking process with split fresh feed and top feeding1985
Delayed coking process with split fresh feed1985
Regeneration of spent hydrodesulfurization catalysts employing presulfiding trea1981
Regeneration of spent hydrodesulfurization catalyst with heteropoly acids1981
Regeneration of spent hydrodesulfurization catalysts with heteropoly acids and h1981