12-19-03 09:34
No 477856
Swim is curious, searching the hive for tips on wacker o2, swim has found that the PdCl2 can be recovered fairly easily when compared to the other wacker routes.
Swim has also read that the catalyst loses its activity after it has been used, is this true? and is there any way to reactivate the PdCl2 catalyst if this is the case.
PdCl2 is expensive and althoug Palladium prices have gone down (they will be rising shortly, currently at $206/oz will rise to 240-270/oz) and swim would like to save as much as possible.
The other route is the iso, then performic route, but swim would prefer to keep the workload low and the yields high.
(Chief Bee)
12-19-03 11:42
No 477871
(Rated as: good read)
Quite a lot has been written on this topic earlier - please review the threads which contains the following posts:
Post 75765 (lugh: "Re: PdCl2 synthesis", Methods Discourse)
Post 102189 (r2d3: "Palladium recovery", Chemistry Discourse)
Post 107796 (smokemouth: "Practical palladium salt recovery - rev drone", Methods Discourse)
Post 174712 (lugh: "Re: Recycling of Palladium", Chemistry Discourse)
Post 177284 (lugh: "Re: Recycling of Palladium", Chemistry Discourse)
Post 296452 (Ritter: "Pd Recovery", Methods Discourse)
Post 388311 (PolytheneSam: "two examples of Pd recovery", General Discourse)
Post 389464 (PolytheneSam: "Palladium recovery/recycling patents", Serious Chemistry)
Post 417838 (carboxyl: "Selective Extraction of Palladium (II) with...", Chemistry Discourse)
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