Help wanted

[Laskulés]

Hey GRF.

I’ve recently gotten into the whole recover and refining game and could really need some help. I am currently reading hoke’s book on refining precious metals, tho it is hard to read and understand fully.

First of I’m from Denmark, which means I am very limited on chemicals so I’ve thought about recovering gold from e-waste with HCL 30~% and hydrogen peroxide 3%.
I’ve read on the upsides of making cobber II chloride first before you add it to the e-waste, but lack the info on how you make it, how you should use it and a little more theory on why it would be better?

I’m also looking for an alternative method of precipitating the gold, I can’t get smb and will have to make the AR with bleach instead of nitric acid - any takes?

 

[FrugalRefiner]

Welcome to the forum!

To make copper II chloride, just put some copper into some HCl and add a bit of peroxide. A capful of peroxide is plenty. Put an air bubbler in the solution and let it run for a week or two. That will use up the peroxide and give you a nice solution of CuCl₂ (copper II chloride). Remove any left over copper and the solution should be ready to use.

If you can't get SMB, copperas (ferrous sulfate) works well. If you can't find it, you can make your own. Add some iron or steel to some dilute sulfuric acid (battery acid should be available at an auto supply store). Let the acid dissolve as much iron as it can. Filter out any remaining iron or other undissolved material, then evaporate the filtered solution. The ferrous sulfate will form crystals. Use those to drop your gold.

AR is HCl and nitric acid. HCl and bleach also dissolves gold, but it's not AR.

Dave

 

[galenrog]

If the world is not more stupid than it is now, I will be in the Copenhagen area sometime next summer. Whatever you have going at that time, schedule permitting, I can take a look at.

Time for more coffee.

 

[Laskulés]

Welcome to the forum!

To make copper II chloride, just put some copper into some HCl and add a bit of peroxide. A capful of peroxide is plenty. Put an air bubbler in the solution and let it run for a week or two. That will use up the peroxide and give you a nice solution of CuCl₂ (copper II chloride). Remove any left over copper and the solution should be ready to use.

If you can't get SMB, copperas (ferrous sulfate) works well. If you can't find it, you can make your own. Add some iron or steel to some dilute sulfuric acid (battery acid should be available at an auto supply store). Let the acid dissolve as much iron as it can. Filter out any remaining iron or other undissolved material, then evaporate the filtered solution. The ferrous sulfate will form crystals. Use those to drop your gold.

AR is HCl and nitric acid. HCl and bleach also dissolves gold, but it's not AR.

Dave

Thanks a lot!

Now should i just use the cobber II chloride to dissolve base metals? In that case is there a need to add additional HCl?

 

[Laskulés]

If the world is not more stupid than it is now, I will be in the Copenhagen area sometime next summer. Whatever you have going at that time, schedule permitting, I can take a look at.

Time for more coffee.

Sure, hit me up when you are here.

 

[FrugalRefiner]

Now should i just use the cobber II chloride to dissolve base metals? In that case is there a need to add additional HCl?

Yes, use it to dissolve base metals.

CuCl₂ leach can be regenerated for quite a while before there is a need to add more HCl.

Dave

 

[Laskulés]

Now should i just use the cobber II chloride to dissolve base metals? In that case is there a need to add additional HCl?

Yes, use it to dissolve base metals.

CuCl₂ leach can be regenerated for quite a while before there is a need to add more HCl.

Dave

Thanks bud! You just made my Day

 

[Topher_osAUrus]

If the world is not more stupid than it is now, I will be in the Copenhagen area sometime next summer.

Time for more coffee.

Total derail but,

Its too late, it will be
Ever seen the movie "Idiocracy"? -we are now living it
At the precipice where intelligence dies off and stupidity grows exponentially..

It was a good, funny movie oh, 15 to 20 years ago..
...now its sad because it is so prophetic

 

[Laskulés]

If the world is not more stupid than it is now, I will be in the Copenhagen area sometime next summer.

Time for more coffee.

Total derail but,

Its too late, it will be
Ever seen the movie "Idiocracy"? -we are now living it
At the precipice where intelligence dies off and stupidity grows exponentially..

It was a good, funny movie oh, 15 to 20 years ago..
...now its sad because it is so prophetic

I’m totally with you bud! We just gotta buckle up and enjoy the roller coaster of shit

 

[kurtak]

If the world is not more stupid than it is now, I will be in the Copenhagen area sometime next summer.

Time for more coffee.

Total derail but,

Its too late, it will be
Ever seen the movie "Idiocracy"? -we are now living it
At the precipice where intelligence dies off and stupidity grows exponentially..

It was a good, funny movie oh, 15 to 20 years ago..
...now its sad because it is so prophetic

I’m totally with you bud! We just gotta buckle up and enjoy the roller coaster of crap

Scaring the hell out of me :!:

Watching a scary move is one thing - when you are living it - it goes beyond scary - we are living it (IMO) :!: :!: :!:

Kurt

 

[1mysurveymail]

Total derail but,

Its too late, it will be
Ever seen the movie "Idiocracy"? -we are now living it
At the precipice where intelligence dies off and stupidity grows exponentially..

It was a good, funny movie oh, 15 to 20 years ago..
...now its sad because it is so prophetic

The introduction to "Idiocracy" is the most prescient ~ 5min on film. It can be seen on YouTube at:
https://www.youtube.com/watch?v=sP2tUW0HDHA

"Brawndo, it has electrolytes."
Thanks.
Sincerely,
"Not Sure"

 

[Ohiogoldfever]

One of my favorite movies to relate our current times too.

Scary how accurate it truly is.

 

[jadedalex]

Lascules, you wrote:

I’m also looking for an alternative method of precipitating the gold, I can’t get smb and will have to make the AR with bleach instead of nitric acid - any takes?

Try your local hardware store and look for a product called "Stump Out". it is Sodium Metabisuphide...

 

[FrugalRefiner]

Lascules, you wrote:

Try your local hardware store and look for a product called "Stump Out". it is Sodium Metabisuphide...

It's sodium metabisulfite.

Dave

 

[Arthur Brown]

Sodium metabisulphite is a food ingredient so looking round professional bakery/cookery suppliers may help. It's certainly available on ebay in UK.