12.5KG of Ram fingers from 180KG of cards

[Stewill]

It took me about 3 weeks in total to get all of these done, next i'll start with the IC chips removal. These were all cut with either a slip and roll cutter where I could cut 6 at a time and was averaging 5 minutes per KG or individually with a PCB slicer and got it down to 6.5 minutes per KG.



Am doing these in batches of 500g in AP but might increase it to 1KG. Have made a RAM finger holder to help circulate the solution and when lifted out foild to fall back into the solution. What are peoples experiences with running larger batches of fingers?

 

[Topher_osAUrus]

Looks beautiful.

I like your foil strainer as well.

What kind of material did you make it out of?

-as far as your question "what are others experiences with large finger lots"
-i have never done anywhere close to that amount. But, i did do 5 pounds of fingers for my first refine ever.
Took about a week to get all done (maybe sooner, i didnt check until a week had passed)

I'd just fill up a 3 gallon bucket, drill holes in it, rig up a bubbler to the bottom. Place the fingers in it, the 3 gallon bucket then into a 5 gallon bucket. Filled it up with HCl, then a shot (literally, 1 oz is all i added) of H2O2 and fired up the bubbler.

It worked perfect for me, but you sir... You have some *weight*... With that much, you would need to stir it every day once or twice, that way all surfaces can get some fresh acid.

The bubbler will add oxygen, but if two or more sets of fingers are sitting flush with one another, you will have some foils that don't end up getting etched off.

Good luck, and show us your progress

Toph

 

[Barren Realms 007]

50, 80, 100 lb lot's if I don't have the time to run them in Poor man's AR I just throw them in a 30 - 55 gallon drum of AP and let them set with a double aquarium fish bubbler for a couple of weeks and shake the barrel every day to stir up the fingers.

It all depends on what you have time for and what you feel comfortable working with so you don't loose your gold or lock it up in solution because you didn't calculate your solution correctly and create a problem recovering your gold.

 

[Rod]

It took me about 3 weeks in total to get all of these done, next i'll start with the IC chips removal. These were all cut with either a slip and roll cutter where I could cut 6 at a time and was averaging 5 minutes per KG or individually with a PCB slicer and got it down to 6.5 minutes per KG.



Am doing these in batches of 500g in AP but might increase it to 1KG. Have made a RAM finger holder to help circulate the solution and when lifted out foild to fall back into the solution. What are peoples experiences with running larger batches of fingers?

Hello Stewill,



That’s an impressive amount of RAM fingers. I’m curious—how much 24k gold were you able to recover from this batch? I’m about to begin refining with 2 lbs of material and would like to gauge whether it will be profitable or if it’s more suited as a hobby.

 

[Yggdrasil]

Hello Stewill,



That’s an impressive amount of RAM fingers. I’m curious—how much 24k gold were you able to recover from this batch? I’m about to begin refining with 2 lbs of material and would like to gauge whether it will be profitable or if it’s more suited as a hobby.

Welcome to us.
We usually refer to Gold as its percentage not Karat.
So 24karat is 100% or a certain number of 9s, 9999 is 99.99% fine.

Here are some links for you to study:

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/

 

[Devildog]

It took me about 3 weeks in total to get all of these done, next i'll start with the IC chips removal. These were all cut with either a slip and roll cutter where I could cut 6 at a time and was averaging 5 minutes per KG or individually with a PCB slicer and got it down to 6.5 minutes per KG.



Am doing these in batches of 500g in AP but might increase it to 1KG. Have made a RAM finger holder to help circulate the solution and when lifted out foild to fall back into the solution. What are peoples experiences with running larger batches of fingers?

What a beautiful problem to have there lol Mother lode

 

[kurtak]

I’m about to begin refining with 2 lbs of material and would like to gauge whether it will be profitable

About (plus/minus) 1.5 grams per pound

Kurt

 

[J.Najam]

About (plus/minus) 1.5 grams per pound

Kurt

Would this be for chips only or RAMs as a whole ?

 

[kurtak]

Would this be for chips only or RAMs as a whole ?

One pound of "close cut" fingers (only) as shown in the pics provided in the original post

Kurt

 

[J.Najam]

One pound of "close cut" fingers (only) as shown in the pics provided in the original post

Kurt

Oh Alright

Thanks

 

[Saint]

It took me about 3 weeks in total to get all of these done, next i'll start with the IC chips removal. These were all cut with either a slip and roll cutter where I could cut 6 at a time and was averaging 5 minutes per KG or individually with a PCB slicer and got it down to 6.5 minutes per KG.



Am doing these in batches of 500g in AP but might increase it to 1KG. Have made a RAM finger holder to help circulate the solution and when lifted out foild to fall back into the solution. What are peoples experiences with running larger batches of fingers?

Bro Stewill, how much does the IC chips weighs? And how much gold did it yield for IC chips only?

BTW are the abbreviations that I interpreted are correct??

AP = Acid Peroxidase
AR = Aqua Regia

 

[FrugalRefiner]

For terms you don't recognize, see A Glossary of Common Terms.

Dave

 

[Yggdrasil]

Bro Stewill, how much does the IC chips weighs? And how much gold did it yield for IC chips only?

BTW are the abbreviations that I interpreted are correct??

AP = Acid Peroxidase
AR = Aqua Regia

AP is actually a Cupric Chloride etch, but has been given the name AcidPeroxide due to how it was started in the beginning.

 

[Saint]

much appreciated guys, thank you!!!

 

[vav]

Hi Stewill
could you release results from your batch of 12.5kg RAM fingers here
please
Thanks a lot
jan

 

[Shark]

Hi Stewill
could you release results from your batch of 12.5kg RAM fingers here
please
Thanks a lot
jan

Stewill hasn't been on the forum since July of 2022. And the post your asking about is from 2016.