Me again with same old question. But this time I take it a bit differently.
To start with, I must admit process we developed with great help of many members of this forum, most notably Lou, 4metals and goldandsilver123, does work in separation of Rh from bulk PtPd with average efficiency of 60-70% by one turnover, from feed containing ca 1-2% Rh.
Dissolve in AR -> cement on Fe to get rid of bulk BM -> denox with HCL boil-down, with addition of NaCl to prevent complete hydrolysis -> dilution with water -> simultaneous drop of PtPd by addition of NH4Cl and chlorine sparging.
Firstly to say, there are many many problems with first stages and also with precipitation PtPd stage. Results can vary wildly from feed to feed and are sometimes irreplicable in sane margins of efficiencies. Despite the protocol followed is the same.
This is basic chemistry, most expensive reagent for us is chlorine... And we know there are much more opportunities how to do this.
As we know nobody will give us procedure of how to do it, we try to think - sometimes maybe bit outside the box - about what we can try/do differently. But more brains, more knowledge, more power
Many members could have great ideas, but they cannot make them real thing - maybe they lack analytical equipment, general equipment, resources, time or chemicals.
So, my question is - what are your thoughts on this ? How we can fine-tune the process to make it more efficient, or completely re-build that process based on some interesting observations or thoughts that only need to be tested out real life ?
The positive thing for this forum, which could arise from this effort is - we post our findings here, wheather positive or negative.
Thank you for your help
To start with, I must admit process we developed with great help of many members of this forum, most notably Lou, 4metals and goldandsilver123, does work in separation of Rh from bulk PtPd with average efficiency of 60-70% by one turnover, from feed containing ca 1-2% Rh.
Dissolve in AR -> cement on Fe to get rid of bulk BM -> denox with HCL boil-down, with addition of NaCl to prevent complete hydrolysis -> dilution with water -> simultaneous drop of PtPd by addition of NH4Cl and chlorine sparging.
Firstly to say, there are many many problems with first stages and also with precipitation PtPd stage. Results can vary wildly from feed to feed and are sometimes irreplicable in sane margins of efficiencies. Despite the protocol followed is the same.
This is basic chemistry, most expensive reagent for us is chlorine... And we know there are much more opportunities how to do this.
As we know nobody will give us procedure of how to do it, we try to think - sometimes maybe bit outside the box - about what we can try/do differently. But more brains, more knowledge, more power
Many members could have great ideas, but they cannot make them real thing - maybe they lack analytical equipment, general equipment, resources, time or chemicals.
So, my question is - what are your thoughts on this ? How we can fine-tune the process to make it more efficient, or completely re-build that process based on some interesting observations or thoughts that only need to be tested out real life ?
The positive thing for this forum, which could arise from this effort is - we post our findings here, wheather positive or negative.
Thank you for your help