MyInnerScientist
Member
- Joined
- Apr 11, 2018
- Messages
- 9
Hello all,
Im new to this forum so apologies if this question was already asked or if i may have posted in the wrong section.
So my question is if the process i have for refining precious metals from catalytic converters is missing anything or if i have overlooked any dangerous outcomes. (i do know of the dangerous gases let off in the process of heating aqua regia)
My Process (simplified): Grind cat into fine powder, remove base metals with HCl, dissolve precious metals with aqua regia, precipitate platinum with ammonium chloride, filter, precipitate palladium with dimethylglyoxime, filter, precipitate any rhodium with ammonium nitrate (if any is present in solution), filter.
Any suggestions are greatly appreciated!
Im new to this forum so apologies if this question was already asked or if i may have posted in the wrong section.
So my question is if the process i have for refining precious metals from catalytic converters is missing anything or if i have overlooked any dangerous outcomes. (i do know of the dangerous gases let off in the process of heating aqua regia)
My Process (simplified): Grind cat into fine powder, remove base metals with HCl, dissolve precious metals with aqua regia, precipitate platinum with ammonium chloride, filter, precipitate palladium with dimethylglyoxime, filter, precipitate any rhodium with ammonium nitrate (if any is present in solution), filter.
Any suggestions are greatly appreciated!