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Potential of spent catalysts as a source of critical metals.
Siemens RE; Jong BW; Russell JH
Conserv Recycl 1986 Jan; 9(2):189-196
Characterization and hydrometallurgical research was conducted by the Bureau of Mines to devise procedures for recovery of metals such as CO, ni, V, w, mo, cr, fe, cu, or zn from waste catalysts. The research effort was concentrated on recovery of metals from spent hydroprocessing, hydrogenation, and high-temperature shift catalysts. Results showed that 73% to 99% of the contained critical metals were extracted by a variety of processing approaches, including anhydrous chlorination, ammoniacal, acid, or caustic leaching, and na2co3 roasting followed by water leaching.
OP; Journal Article
Issue of Publication
Conservation & Recycling
Page last reviewed: November 19, 2021
Content source: National Institute for Occupational Safety and Health Education and Information Division