Selective extraction of molybdenum and vanadium from spent catal

Details Selective extraction of molybdenum and vanadium from spent catal Selective extraction of molybdenum and vanadium from spent catal

1986-05-09

1987-05-19

Doll, John

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group vib metal

423 53, 423 62, 423 66, 423 68, 423127, 423131, 423140, 423147, 423150, 75101R, 75108, 75119, 75121, 502 25, C01G 3100, C01G 3900

Patent

active

046666850

ABSTRACT:
Spent hydrodesulfurization catalysts containing alumina, at least one metal from the group consisting of molybdenum, tungsten and vanadium and at least one metal from the group consisting of nickel and cobalt, sulfur, and, usually, residual oil are oxygen pressure leached at a temperature of at least about 400.degree. F. with a base from the group consisting of sodium hydroxide and sodium aluminte in at least stoichimetric amount to yield a solution having a pH between about 7 and 9 containing dissolved molybdenum, vanadium and any tungsten which may be recovered and a readily filterable residue containing aluminum, nickel and cobalt which may be worked up to recover the valuable constituents, with overall processing being accomplished in an environmentally acceptable manner.

REFERENCES:
patent: 1709284 (1929-04-01), Sauer
patent: 2208616 (1940-07-01), Wellman et al.
patent: 3824193 (1974-07-01), Williams et al.
patent: 4145397 (1979-03-01), Toida et al.
patent: 4401631 (1983-08-01), Canavesi et al.
patent: 4495157 (1985-01-01), Sebenik et al.

Affiliated with

Also associated with

Rating

Selective extraction of molybdenum and vanadium from spent catal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Selective extraction of molybdenum and vanadium from spent catal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Selective extraction of molybdenum and vanadium from spent catal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1563394