| Rhodium resource is very scarce in China, the demand is large, spent catalyst is rich and recycling rhodium from spent catalyst is of great significance. Recovery of rhodium from the spent catalyst containing organic by iron collection based on solid state reduction is presented, focuses on the influence of reduction system, additive, collection agent and reductant of rhodium recovery. Results showed that the solid state reduction is carried out under the conditions of reduction temperature 1200℃, reduction time 6 hours, coal ratio 9%, additive ratio 8%. The rhodium-containing iron powder is obtained through fine grinding and table separation the reduction product, among it the rhodium content is 106 g/t, the recovery rate is 96.53%. |
