Owen_Lindsay
Member
- Joined
- Nov 7, 2019
- Messages
- 21
Hi to everyone,
thank you for a very informative forum. i have a great deal to learn for you all.
Please excuse my current lack in expertise, i am just starting out and getting my head around things. i have always been a practical learner rather that an academic so basic steps and advice in times of woe are more or less my bread and butter.
If not too much trouble can someone link me in to the appropriate thread if it has already been covered in entirety. ( im sure it has )
My Process Thus Far..
I was drawn to some mixed metal supposed melted CPU pin ingots.(i'm sure this was my first Rookie error in a series to come)
I had a total of 3kg of this unknown mixed metal ,
I added them to a 25L empty plastic container to which i added approx 10L of 36% HCL followed by a grand total of 10L H202 10%, the H2O2 was added slowly over the course of a few week to keep the solution deep emerald green.
If the solution turned black/deep brown with no trace of green I added more H2O2 up to the 10L mentioned (Knowing i had used far too much anyway)
1 week ago i added a Fishbubbler with a mineral diffuser which is bubbling away nicely and metal is still clanking in the bottom when i agitate the container.
i can see no gold floating in the solution but it has returned to a cloudy black colour which upon filtering a small test portion is deep brown leaving a dark grey/black sediment in the filter.
( i am awaiting some stannous chloride to be delivered presently)
I added this black precipitate to fresh HCL and way too much bleach (whoops)
the precipitate appeared not to dissolve but i still then proceeded to filter.
i am using milton (2% sodium hypochlorite)
the filtrate was a yellow brown colour..
no amount of SMB would cause a drop or change the liquids colour..
currently it is sitting on a hot plate trying to drive off some more chlorine assuming there is gold to be had from this solution and hoping it eventually drops.
.
1) is the black precipitate normal and if so what is it? ??? copper??
2) once a solution has had SMB added can it be added to a general slush pot for re-refining in any way? does the chemistry allow for this to occur?
3) as mixed metal the presence of tin and ferric metals are most likely a certainty ,will this ruin any chance of getting the gold out?
I am just starting out, this is a hobby, done outside in the garden shed with lots of ventilation and appropriate Personal Protective Equipment has been used..
unfortunately due to the area i live in i am unable to heat such quantity of solution (even in small batches) to drive reactions or to evaporate excess h20, due to the nature of chemicals used and the evolution of noxious gasses.
Don't fancy irritating my neighbours with fumes and complaints being filed.
any help would be useful even if it is just a few redirects.
Additionally i know i am new, i am keen to learn, i know i have made mistakes but i wish not to repeat them.
i have 500g mixed cpu's and 2kg of assorted ram chips i wish to refine in future but i dare not do a thing with them until i get my practice spot on and had a few successful runs.
Thank you all.
Owen
thank you for a very informative forum. i have a great deal to learn for you all.
Please excuse my current lack in expertise, i am just starting out and getting my head around things. i have always been a practical learner rather that an academic so basic steps and advice in times of woe are more or less my bread and butter.
If not too much trouble can someone link me in to the appropriate thread if it has already been covered in entirety. ( im sure it has )
My Process Thus Far..
I was drawn to some mixed metal supposed melted CPU pin ingots.(i'm sure this was my first Rookie error in a series to come)
I had a total of 3kg of this unknown mixed metal ,
I added them to a 25L empty plastic container to which i added approx 10L of 36% HCL followed by a grand total of 10L H202 10%, the H2O2 was added slowly over the course of a few week to keep the solution deep emerald green.
If the solution turned black/deep brown with no trace of green I added more H2O2 up to the 10L mentioned (Knowing i had used far too much anyway)
1 week ago i added a Fishbubbler with a mineral diffuser which is bubbling away nicely and metal is still clanking in the bottom when i agitate the container.
i can see no gold floating in the solution but it has returned to a cloudy black colour which upon filtering a small test portion is deep brown leaving a dark grey/black sediment in the filter.
( i am awaiting some stannous chloride to be delivered presently)
I added this black precipitate to fresh HCL and way too much bleach (whoops)
the precipitate appeared not to dissolve but i still then proceeded to filter.
i am using milton (2% sodium hypochlorite)
the filtrate was a yellow brown colour..
no amount of SMB would cause a drop or change the liquids colour..
currently it is sitting on a hot plate trying to drive off some more chlorine assuming there is gold to be had from this solution and hoping it eventually drops.
.
1) is the black precipitate normal and if so what is it? ??? copper??
2) once a solution has had SMB added can it be added to a general slush pot for re-refining in any way? does the chemistry allow for this to occur?
3) as mixed metal the presence of tin and ferric metals are most likely a certainty ,will this ruin any chance of getting the gold out?
I am just starting out, this is a hobby, done outside in the garden shed with lots of ventilation and appropriate Personal Protective Equipment has been used..
unfortunately due to the area i live in i am unable to heat such quantity of solution (even in small batches) to drive reactions or to evaporate excess h20, due to the nature of chemicals used and the evolution of noxious gasses.
Don't fancy irritating my neighbours with fumes and complaints being filed.
any help would be useful even if it is just a few redirects.
Additionally i know i am new, i am keen to learn, i know i have made mistakes but i wish not to repeat them.
i have 500g mixed cpu's and 2kg of assorted ram chips i wish to refine in future but i dare not do a thing with them until i get my practice spot on and had a few successful runs.
Thank you all.
Owen