Abstract
Low temperature selective chlorination of unroasted and roasted spent hydrorefining catalysts was studied between 300 and 600 °C for the recovery of transition and/or refractory metals. Direct oxychlorination of the C+S rich sample allows higher extraction rates than those obtained by the carbochlorination of the same roasted one. Cobalt and nickel chlorides were extracted from the chlorination residues by their dissolution with acified water, whereas molybdenum and vanadium chlorinated compounds were recovered by selective condensation from the vapor phase.
| Original language | English |
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| Pages | 405-424 |
| Number of pages | 20 |
| Publication status | Published - 1995 |
| Externally published | Yes |
| Event | Proceedings of the 1995 TMS Fall Symposium - Point Clear, AL, USA Duration: 12 Nov 1995 → 15 Nov 1995 |
Conference
| Conference | Proceedings of the 1995 TMS Fall Symposium |
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| City | Point Clear, AL, USA |
| Period | 12/11/95 → 15/11/95 |