arthur kierski
Well-known member
i have many kilos of this activated carbon deriving from the cleaning of industrial plating solutions-- i received 3,3kilos for testing the quantities of rh,au and any other pms --- well now , i wil describe the experiment that i did with 1kilo of this carbon---- I put 1kilo of this carbon in a oven with open door for some hours---after these hours the 1kilo became 55grams---- i reduced 1kilo to 55grams(94,5%)---this 55grams was treated with nitric(to see if any ag present)----no Ag----then the 55grams powder was treated with AR---the liquid was tested for gold,and the result was 1,14gram of gold---the powder left after the ar treatment,became 45,5grams---this powder where the rh might be,was magnetic---so now i have a powder(45,5) with suspected rh,fe , and ni--and perhaps other base metals------what does members of the forum would do with this powder ,to recuperate the rhodium?whem i saw that this powder had iron,i thought that more gold might have been precipitated into this 45,5grams of powder---i acept sugestions with pleasure---- thanks-------------------------------------------------------------------------------------------------------------------------------------------------------Arthur Kierski