Tin as a Collector

[Yggdrasil]

Now you have earned a break.
YOU are the one not managing to do what has been done for millennia, not us.
So I will give you a 5 day break to study and try.

So now go study!!!

I have banned Tomcat for 5 days.
I hope he use this time wisely.

 

[Yggdrasil]

Tomcat is trolling with rage-bait. Please stop feeding the troll.

EDIT for explanation: He is just saying things to cause an argument, and make people unhappy. There are plenty of articles and videos showing cupelling in great detail. He is enjoying making people unhappy.

I see this is your second post
Welcome to us.

Just in case you plan to use chemicals I will give you some material to study.

Here it is:

We ask our new members to do 3 things.
1. Read C.M. Hokes book on refining jewelers scrap, it gives an easy introduction to the most important chemistry regarding refining.
It is free here on the forum: https://goldrefiningforum.com/phpBB3/viewtopic.php?f=54&t=19798
2. Then read the safety section of the forum: https://goldrefiningforum.com/forums/safety.47/
3. And then read about "Dealing with waste" in the forum: https://goldrefiningforum.com/threads/dealing-with-waste.10539/

Suggested reading:
https://goldrefiningforum.com/forums/the-library.101/
https://goldrefiningforum.com/threads/when-in-doubt-cement-it-out.30236/
https://goldrefiningforum.com/threa...le-read-this-before-you-post-about-ore.33333/


Forum rules is here.
https://goldrefiningforum.com/threads/gold-refining-forum-rules.31182/

 

[sinnegam]

I am flattered, Tomcat called me a King.

Thank you, Yggdrasil. I have been reading the Hoke book and following the forum for some time, I have much to learn and little to say yet.

Back on topic, personally, at this point in my learning I can see no advantage to using Tin as a collector unless the material being processed has a large amount of tin in it (E-waste and solder) and develop the workflow around it, electro-winning and process the slimes, as mentioned earlier in this thread. For cupelling , use Lead or Bismuth and it can be reclaimed from the spent cupels, if needed.

 

[4metals]

For cupelling , use Lead or Bismuth and it can be reclaimed from the spent cupels, if needed.

Do you actually recover lead from spent cupels? I don't know of many who do that. Will you share some details so we can discuss the benefit vs the effort.

 

[Yggdrasil]

I am flattered, Tomcat called me a King.

Thank you, Yggdrasil. I have been reading the Hoke book and following the forum for some time, I have much to learn and little to say yet.

Back on topic, personally, at this point in my learning I can see no advantage to using Tin as a collector unless the material being processed has a large amount of tin in it (E-waste and solder) and develop the workflow around it, electro-winning and process the slimes, as mentioned earlier in this thread. For cupelling , use Lead or Bismuth and it can be reclaimed from the spent cupels, if needed.

Not everyone obtains the privilege of being called a King, good for you

Tin is often called the curse of refining for various reasons.
So unless, as you say there already are plenty of it there is absolutely no reason to add more.
Usually we dissolve it in HCl.

Edit to change word

 

[sinnegam]

I have not. Jason at Mt Baker Mining did a video on it ( ) and I have read abstracts of various research papers from Brazil mostly ( https://pubmed.ncbi.nlm.nih.gov/27652581/ )
I go down a lot of rabbit holes on the web.
Jason smelted his crushed cupels with charcoal to reduce the lead oxide back to lead. The research papers leach the lead from the cupels with acids, usually with Lead Sulphate PbSO4 as the product. Jason was doing it to determine losses of values, so by either route it should be electro-won (electro-winned ? ) to pure Lead.
At smaller scales, it may be a method to reduce Hazardous Waste disposal costs and recycle the lead, if you have space available for the setup. Not sure about cost / time / effort balance for most operations though.

 

[GoIdman]

No - in a cell you do not get "complete" parting of the gold from the tin & that is because at the "anode" slims are produced & those "slimes" are going to be made up of mostly tin

In other words - when you run the cell - yes - it deposits pure tin at the cathode - BUT - as the cell runs it produces slimes at the anode (which collect in the anode bag) the gold stays in those slimes BUT also MOST of those slimes are very fine particles of tin that fall off the anode during the running of the cell - so you still have to process those slimes to separate the tin in those slimes from the gold in those slimes

Kurt

I was just thinking about this....But if...and a big if, the remaining slimes are remelted and reused as an anode to reduce the tin content once again, and by this the gold content is concentrated.... (hipotethically, since i didn`t tried), and after a few runs the remaining slimes, which would have considerable concentration of gold that could be reclaimed by dissolving the smaller amount of tin with the use of HCl.

If it is economically viable, i don`t know...time consuming deffinitely ....but i think in large quantities may be profitable.

Pete

 

[kurtak]

I have not. Jason at Mt Baker Mining did a video on it ( )

Jason smelted his crushed cupels with charcoal to reduce the lead oxide back to lead. ------------ Jason was doing it to determine losses of values,

& here is part 2 of that video



Edit to add - Jason from MBMM is one of the FEW youtube video producers I enjoy watching (&/or trust) as unlike MANY other youtube videos he does provide quite detailed info on what he does including details of when things don't quite go as planned/expected which is good for & part of the learning process

Kurt

 

[minero74]

Good morning Guys
for smelting and cupelling successfully .

Need to study,and more study.
Many peoples get serious burn and breathing problems just for breathing those fumes
many have lead posioning from the lead fumes released by cupelling .

I personally Know an old timer,He was a miner all his life
He was doing smelting all his life,even His grand father,and His father before him.

He was burn his hand so badly,even when he had so many years doing the same thing almost every day.

why He get burned so badly?
because He get over confident and lower his guard.

for that reason He was so hard with me
all time He was advice me.
and if i do something wrong ,He make me study it again and again until I get it.
( old timer were hard as steel).

Key for everything in life is Study.
If You don’t know something,hold Yourself.
rethink everything and study the subject
to learn it the right way.
so You don’t lose Your life and lose lot money experimenting with thing that we don’t understand.

(Edited)

 

[minero74]

Jason is a great person and have many years of experience.
To be at His levels of expertise we need to study.
Jason learn from an old timer (miner).
(I never meet Him personally).

(For everything in life We need to study.
I’m not good with books,But right now
i respect refining way a Lot.

and i get into books,and read lot from here
C.M Hooke
this forum have such a huge library
of many topic that I’m impressed.

Study,learning and understanding the whole process is my priority right now.)

but He sometime make few mistakes
and He knows about it.

He was sometimes not using gas mask when he was smelting or roasting.
now in his last videos He starting using gas mask more often.

(Edited).