Non-Chemical What to use to remove tin from foils?

[Agold2019]

Would a lye solution work to remove the tin from the foils? The options that I see would be to use muriatic or lye. Muriatic is hard if not impossible for me to buy so I was wondering if lye is an option. Are there any tricks to clean the foils? I also do not want to lose any silver if there is any involved. After I ran them through nitric again I do not think that any of it is silver.

 

[Lino1406]

If you expect gold/silver take a sample and use muriatic acid. Just for worth estimation

 

[Agold2019]

Hi Lino thank you for the response. These are foils that came from pins and fingers and other gold plated copper nickel components from cell phone boards. There was also left a slimey grey residue which I think is tin. In my country it is hard if not impossible to get muriatic. I was wondering if lye could work? If not I will work on getting some muriatic and doing the test that way.

 

[niks neims]

Hi Lino thank you for the response. These are foils that came from pins and fingers and other gold plated copper nickel components from cell phone boards. There was also left a slimey grey residue which I think is tin. In my country it is hard if not impossible to get muriatic. I was wondering if lye could work? If not I will work on getting some muriatic and doing the test that way.

But it was no problem getting the nitric to make metastannic acid with? Oh the USA with it's elusive muriatic acid....By the way what is it's chemical formula?... you could try substituting it with hydrochloric acid...., it still won't work on metastannic without incineration, though...

also hit the books buddy, hard

 

[Martijn]

Hi Agold, have you created another batch with tin and gold foils in 2 day's since your first post: "e waste mixed hi grade Mystery Metal"?
You were given some sound advice in that post, and it became an unplesant post to read for you maybe, but stick to the advice given and don't make a big thing out of other people's comments. It will lead nowhere.

You will have to study more and if you keep asking questions that most of us here can see right through, you will, by doing so, tell them you haven't put in the effort learning the basics and still want a quick fix. That will not be appreciated here, and some harsh comments WILL follow. Or complete radio silence as a reaction to your ignorance...your decision.

Tin paste /metastannic acid> incineration followed by HCL leaching is the best solution a far as i understood from other members comments in other posts. Without incineration the tin paste will not dissolve. (not as fast or at all?.. not sure)
Prevention of tin in your mix is the best option. How to incinerate without losing any values: search button.

But understand what you're doing, experiment with small amounts in a glass test tube. watch, observe and learn. Then come back with better questions. questions wil never cease to arise in this field of fun stuff.
You don't have to become a master scientist to perform the steps neccesary, but follow the steps given and understand the basics will help alot. Others have figured out methods by research or improved the methods and explained them in great detail, often, over and over. there is a ton of info here, it just needs some reading. it took me about 4 years to start to get a grip on some processes.

Stick to one post, don't start over in another. we'll know :roll:

good luck, keep it simple and enjoy the ride!
Martijn.

I will also do my best to divide in paragraphs better than i usually do :wink:
Its a learning curve for all of us.

 

[niks neims]

Without incineration the tin paste will not dissolve. (not as fast or at all?.. not sure)

First time I recovered gold from e-scrap, I just threw some fingers in nitric, and encountered same metastannic problem, I actually went straight to AR, metastannic and all, it didn't dissolve, I just had to filter AR and wash out the metastannic goo with some water, seemed to work, but I wouldn't suggest it, very messy...

 

[butcher]

Hi Agold, have you created another batch with tin and gold foils in 2 days since your first post: "e-waste mixed hi-grade Mystery Metal"?
You were given some sound advice in that post, and it became an unpleasant post to read for you maybe, but stick to the advice given and don't make a big thing out of other people's comments. It will lead nowhere.

You will have to study more and if you keep asking questions that most of us here can see right through, you will, by doing so, tell them you haven't put in the effort learning the basics and still want a quick fix. That will not be appreciated here, and some harsh comments WILL follow. Or complete radio silence as a reaction to your ignorance...your decision.

Tin paste /metastannic acid> incineration followed by HCL leaching is the best solution a far as I understood from other members' comments in other posts. Without incineration the tin paste will not dissolve. (not as fast or at all?.. not sure)
Prevention of tin in your mix is the best option. How to incinerate without losing any values: search button.

But understand what you're doing, experiment with small amounts in a glass test tube. watch, observe and learn. Then come back with better questions. questions wil never cease to arise in this field of fun stuff.
You don't have to become a master scientist to perform the steps necessary, but follow the steps given and understand the basics will help a lot. Others have figured out methods by research or improved the methods and explained them in great detail, often, over and over. there is a ton of info here, it just needs some reading. it took me about 4 years to start to get a grip on some processes.

Stick to one post, don't start over in another. we'll know :roll:

good luck, keep it simple and enjoy the ride!
Martijn.



I will also do my best to divide in paragraphs better than i usually do :wink:
Its a learning curve for all of us.

The best advice I have heard all day.

 

[Agold2019]

Hi Lino thank you for the response. These are foils that came from pins and fingers and other gold plated copper nickel components from cell phone boards. There was also left a slimey grey residue which I think is tin. In my country it is hard if not impossible to get muriatic. I was wondering if lye could work? If not I will work on getting some muriatic and doing the test that way.

But it was no problem getting the nitric to make metastannic acid with? Oh the USA with it's elusive muriatic acid....By the way what is it's chemical formula?... you could try substituting it with hydrochloric acid...., it still won't work on metastannic without incineration, though...

also hit the books buddy, hard

It was no problem buying the nitric. But, like I said muriatic also known as hydrocloric is. I guess that you are assuming that I’m from the USA because I said I was e waste scrapping in New York? I don’t live in New York anymore. I saved my money and live and work in South America now I find it a much more relaxing place to be.

I found a great resource for e waste here, I can buy old clean boards and all e scrap at not so bad pricing. I think I can buy sweepings from all the jewelry stores also if I learn this trade as I am now learning it is an easier way to learn and start. There are no refinery’s close for at least 1000 miles as far as I am aware. I’m thinking to do this to make money but also more hoard gold for myself and start as a hobby if until it develops. It’s a much safer investment than paper.

I have been reading everyday. I am interested in learning. Could you elaborate please on incineration? I was worried about mixing the two metals to make a bigger mess. I know about using fluxes but I’m not sure what happens when those two alloy or if it only burns off? I don’t see any information on if or when this happens.

 

[Agold2019]

Hi Agold, have you created another batch with tin and gold foils in 2 day's since your first post: "e waste mixed hi grade Mystery Metal"?
You were given some sound advice in that post, and it became an unplesant post to read for you maybe, but stick to the advice given and don't make a big thing out of other people's comments. It will lead nowhere.

You will have to study more and if you keep asking questions that most of us here can see right through, you will, by doing so, tell them you haven't put in the effort learning the basics and still want a quick fix. That will not be appreciated here, and some harsh comments WILL follow. Or complete radio silence as a reaction to your ignorance...your decision.

Tin paste /metastannic acid> incineration followed by HCL leaching is the best solution a far as i understood from other members comments in other posts. Without incineration the tin paste will not dissolve. (not as fast or at all?.. not sure)
Prevention of tin in your mix is the best option. How to incinerate without losing any values: search button.

But understand what you're doing, experiment with small amounts in a glass test tube. watch, observe and learn. Then come back with better questions. questions wil never cease to arise in this field of fun stuff.
You don't have to become a master scientist to perform the steps neccesary, but follow the steps given and understand the basics will help alot. Others have figured out methods by research or improved the methods and explained them in great detail, often, over and over. there is a ton of info here, it just needs some reading. it took me about 4 years to start to get a grip on some processes.

Stick to one post, don't start over in another. we'll know :roll:

good luck, keep it simple and enjoy the ride!
Martijn.

I will also do my best to divide in paragraphs better than i usually do :wink:
Its a learning curve for all of us.

Thank you I should have read this first. This was the answer I was looking for. And no it was the same batch that I cleaned it all up if you can call it that. Where I live I may not be able to get HCL. Maybe I can, but looking for other options if possible. That’s why I asked about lye.

Once again thank you.

 

[g_axelsson]

I think we all assumed you were from USA as it's stated in your profile that shows up with every post you make.

If you add your correct location on the globe you might get better advice to where to find supplies, material and buyers.

Göran

 

[Agold2019]

I think we all assumed you were from USA as it's stated in your profile that shows up with every post you make.

If you add your correct location on the globe you might get better advice to where to find supplies, material and buyers.

Göran

I did not know that. Well, I am from the USA 8) :lol:

 

[g_axelsson]

You could also add your location to the profile.
That way you can have both origin and location.
http://goldrefiningforum.com/phpBB3/ucp.php?i=ucp_profile&mode=profile_info

Göran

 

[Agold2019]

You could also add your location to the profile.
That way you can have both origin and location.
http://goldrefiningforum.com/phpBB3/ucp.php?i=ucp_profile&mode=profile_info

Göran

I see now. Updated. Thanks and sorry about confusion.

 

[Jmk88]

I have had a similar issue with a batch of jewellery; I have got to the bottom of the issue with help from Butcher who gave me enough information for me to work things out.

I love the way Butcher plants clues/hints as it discourages laziness and encourages study.

I believe Hoke (I think on pages 75-85) discusses this in detail. There is a two stage recovery required if I understand correctly, which requires two hcl boils, two water boils, a caustic wash and then a final water for good measure after your initial bulk recovery. The foils must be put through this process. Harold emphasises the importance too.

Hoke states this is sufficient to remove solder paste. What Hoke doesn’t advise is the durations in which the foils should be left in these processes.

Perhaps one of the Jedis can shed light.

 

[anachronism]

Do you mean a real Jedi or one of the sickly politically correct Disney Jedis?

:lol: :lol: :lol: :lol: :lol:

Jon

 

[Jmk88]

The Jedis;

Butcher
Frugal
Harold
Geo
Lasersteve
Ka driver

Then you got the dark side...

Dr. Poe (Vader)

 

[anachronism]

OK! Will let them help you then 8) 8)

 

[rickzeien]

Turn from the dark side...May the farce be with you...refine you must!

Sent from my SM-G950U using Tapatalk

 

[butcher]

Roaming in the woods and blindly picking up mushrooms and making you some mushroom soup, before you even learn which mushrooms make good soup with, is one way to learn, but is a hard way to learn, you may be able to figure out which mushrooms were not very good to eat.

 

[Jmk88]

Sorry Jon.

I’m sure you’re just as good! Stop being sensitive....

I would welcome you’re views too.

Yep!! Win or learn. It’s never ever a loss.