NatiYati,
From what I can tell of the photo it looks like a 5 gallon bucket of crystallized copper chloride, not something I would normally see in my aqua regia, It seems you missed some of the fine points of Hokes book, like eliminating the base metals before using aqua regia to dissolve gold.
Those crystal are probably fairly pure copper salts, but they can trap gold, I would pour off solution filter the solution and them add a buss bar, (add just a little HCl to get solution acidic) values will cement out of solution as a fine black powders.
Dissolve the copper crystals in water and HCl, heating will help, then do the same thing filtering and cementing values with copper,
the solution is mainly copper chloride and can be used in a later leach, if you wish to dispose of liquid then cement copper out of solution with steel or iron, decant iron chloride solution and raise pH to about 9, let settle siphon off clear salt water and dispose of, dry copper and iron hydroxide and either save copper powders or you can dispose of them with the dry iron hydroxide.
once you get the values cemented Clean off copper bars (old tooth brush) rinse powder off into solution and let settle, when settled decant solution from values.
Here I would put the powders in a corning casserole dish on a cast iron solid burner electric hot plate, decanting solution with a suction bulb and a pipette, leaving powders in the dish, letting the powders settle well before decanting solutions, filtering decanted solutions.
Wash the powders with hot water until water comes off clear, decant these washes hot but with powders well settled, then use a solution of sodium hydroxide NAOH till solution with powders tests to pH 7, wash out salts that formed from this, wash well in hot water, (NaCl formed from HCl acid and caustic soda).
dry the powder on low heat when dry raise heat in increments until burner is on high and incinerate the powders use a torch to get powders red hot, if powders fuse or cook together heat until dry again and crush them back to powders, crushing and keeping powder exposed to air as they are heated red hot, let these cool, and give a water rinse,
Now we can dissolve the gold in HCL and bleach (much easier than dealing with aqua regia),filter and heat to remove excess chlorine gas let cool filter to clean vessel and cover let this set overnight, filter off this clear yellow solution to another clean vessel and precipitate the gold with SMB
From what I can tell of the photo it looks like a 5 gallon bucket of crystallized copper chloride, not something I would normally see in my aqua regia, It seems you missed some of the fine points of Hokes book, like eliminating the base metals before using aqua regia to dissolve gold.
Those crystal are probably fairly pure copper salts, but they can trap gold, I would pour off solution filter the solution and them add a buss bar, (add just a little HCl to get solution acidic) values will cement out of solution as a fine black powders.
Dissolve the copper crystals in water and HCl, heating will help, then do the same thing filtering and cementing values with copper,
the solution is mainly copper chloride and can be used in a later leach, if you wish to dispose of liquid then cement copper out of solution with steel or iron, decant iron chloride solution and raise pH to about 9, let settle siphon off clear salt water and dispose of, dry copper and iron hydroxide and either save copper powders or you can dispose of them with the dry iron hydroxide.
once you get the values cemented Clean off copper bars (old tooth brush) rinse powder off into solution and let settle, when settled decant solution from values.
Here I would put the powders in a corning casserole dish on a cast iron solid burner electric hot plate, decanting solution with a suction bulb and a pipette, leaving powders in the dish, letting the powders settle well before decanting solutions, filtering decanted solutions.
Wash the powders with hot water until water comes off clear, decant these washes hot but with powders well settled, then use a solution of sodium hydroxide NAOH till solution with powders tests to pH 7, wash out salts that formed from this, wash well in hot water, (NaCl formed from HCl acid and caustic soda).
dry the powder on low heat when dry raise heat in increments until burner is on high and incinerate the powders use a torch to get powders red hot, if powders fuse or cook together heat until dry again and crush them back to powders, crushing and keeping powder exposed to air as they are heated red hot, let these cool, and give a water rinse,
Now we can dissolve the gold in HCL and bleach (much easier than dealing with aqua regia),filter and heat to remove excess chlorine gas let cool filter to clean vessel and cover let this set overnight, filter off this clear yellow solution to another clean vessel and precipitate the gold with SMB
