Value recovery from spent alumina-base catalyst
Abstract
A process for the recovery of aluminum and at least one other metal selected from the group consisting of molybdenum, nickel and cobalt from a spent hydrogenation catalyst comprising (1) adding about 1 to 3 parts H.sub.2 SO.sub.4 to each part of spent catalyst in a reaction zone of about 20.degree. to 200.degree. C. under sulfide gas pressure between about 1 and about 35 atmospheres, (2) separating the resultant Al.sub.2 (SO.sub.4).sub.3 solution from the sulfide precipitate in the mixture, (3) oxidizing the remaining sulfide precipitate as an aqueous slurry at about 20.degree. to 200.degree. C. in an oxygen-containing atmosphere at a pressure between about 1 and about 35 atmospheres, (4) separating the slurry to obtain solid molybdic acid and a sulfate liquor containing said at least one metal, and (5) recovering said at least one metal from the sulfate liquor in marketable form.
- Inventors:
-
- Northglenn, CO
- Issue Date:
- Research Org.:
- CHEMICAL SALES CO INC
- OSTI Identifier:
- 866213
- Patent Number(s):
- 4657745
- Assignee:
- Chemical & Metal Industries, Inc. (Denver, CO)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01F - COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- DOE Contract Number:
- AC03-83ER80032
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- value; recovery; spent; alumina-base; catalyst; process; aluminum; metal; selected; consisting; molybdenum; nickel; cobalt; hydrogenation; comprising; adding; reaction; zone; 20; degree; 200; sulfide; gas; pressure; 35; atmospheres; separating; resultant; solution; precipitate; mixture; oxidizing; remaining; aqueous; slurry; oxygen-containing; atmosphere; obtain; solid; molybdic; acid; sulfate; liquor; containing; recovering; marketable; form; hydrogenation catalyst; reaction zone; gas pressure; catalyst comprising; metal selected; aqueous slurry; oxygen-containing atmosphere; liquor containing; containing atmosphere; spent catalyst; /423/75/502/
Citation Formats
Hyatt, David E. Value recovery from spent alumina-base catalyst. United States: N. p., 1987.
Web.
Hyatt, David E. Value recovery from spent alumina-base catalyst. United States.
Hyatt, David E. Thu .
"Value recovery from spent alumina-base catalyst". United States. https://www.osti.gov/servlets/purl/866213.
@article{osti_866213,
title = {Value recovery from spent alumina-base catalyst},
author = {Hyatt, David E},
abstractNote = {A process for the recovery of aluminum and at least one other metal selected from the group consisting of molybdenum, nickel and cobalt from a spent hydrogenation catalyst comprising (1) adding about 1 to 3 parts H.sub.2 SO.sub.4 to each part of spent catalyst in a reaction zone of about 20.degree. to 200.degree. C. under sulfide gas pressure between about 1 and about 35 atmospheres, (2) separating the resultant Al.sub.2 (SO.sub.4).sub.3 solution from the sulfide precipitate in the mixture, (3) oxidizing the remaining sulfide precipitate as an aqueous slurry at about 20.degree. to 200.degree. C. in an oxygen-containing atmosphere at a pressure between about 1 and about 35 atmospheres, (4) separating the slurry to obtain solid molybdic acid and a sulfate liquor containing said at least one metal, and (5) recovering said at least one metal from the sulfate liquor in marketable form.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1987},
month = {Thu Jan 01 00:00:00 EST 1987}
}