Blacktoadd
Active member
HCl peroxide, then HCl Bleach gets me to the values
May need fine grind and roast to break down the pyrite and sulfer.
1) Straight HCl and HCl with Peroxide. At this point I haven't hurt any of the values (much if any).
2) Move on to HCl bleach or turn into AR to get at values.
3) Allowing initial solutions if to evaporate almost till Cu drops out. All kinds of undesireables drop out. put solution into tank in corner and let plate away. Will plate, melt and replate in proper sulfate electrowinning bath for purification and to recover any values that made it this far. Like most things, sounds simpler than it is I am finding. May evaporate, remove rude contaminations. Evaporate to end, smelt, then plate one time, instead of trying to drop all values from copper contaminated solutions one at a time from, from plating sludge may be easier. Iron, copper and others will be gone after first firing of fluxed sludge.
Any suggustions for improvement, besides getting out while I can now!
Bruce
May need fine grind and roast to break down the pyrite and sulfer.
1) Straight HCl and HCl with Peroxide. At this point I haven't hurt any of the values (much if any).
2) Move on to HCl bleach or turn into AR to get at values.
3) Allowing initial solutions if to evaporate almost till Cu drops out. All kinds of undesireables drop out. put solution into tank in corner and let plate away. Will plate, melt and replate in proper sulfate electrowinning bath for purification and to recover any values that made it this far. Like most things, sounds simpler than it is I am finding. May evaporate, remove rude contaminations. Evaporate to end, smelt, then plate one time, instead of trying to drop all values from copper contaminated solutions one at a time from, from plating sludge may be easier. Iron, copper and others will be gone after first firing of fluxed sludge.
Any suggustions for improvement, besides getting out while I can now!
Bruce