organic agent rhodium precipitation
highly selective against Pt Pd Ir Au, Cu Ni Pb;
no or low salination of liquors; dissolvable precipitate


useful separation scheme for

process data

1. rhodium precipitation
from main stream pgm refinery liquors

benefits
replacing salt precipitations or cementations
 


pregnant liquor /feed
5 - 15 g/l Rh
Cu, Pb, Se, (Fe) main constituents
Pt, Pd, Ir minor constituents
 
yield and recovery
> 99% Rh recovery in precipitate
> 99.9% Rh purity in precipitate
base metals and minor constituents Pt, Pd, Ir left in filtrate

 

2. separation of Rh traces from PtPdIr pgm refinery liquors

benefits
replacing repeated salt precipitations


pregnant liquor /feed
0 - 2 g/l Rh
base metals Cu, Pb, Se, (Fe)
Pt, Pd, Ir main constituents

 
yield up to > 99% Rh recovery in precipitate depending on feed
 
 

3. separation of Rh traces from Cu and Se rich Sherrit leach liquors

benefits
avoiding Rh losses in Cu-cathodes


pregnant liquor /feed
0 - 1 g/l Rh
Cu, Ni main constituents
Pb, Se, Fe, Pt, Pd, Ir minor constituents
 
yield > 95% Rh recovery up to 99% in precipitate depending on feed

 


 
 

cut losses on external Rh refining !

no external cost; no assay fraud; save recovery time !

you don't need an external rhodium refiner for your scrap any longer !