scored big today.. at least big to me ...best way to do thes

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steyr223

Well-known member
Joined
Oct 9, 2011
Messages
930
Location
Fullerton ,California. usa
Hello. Everyone
Today brought back some old memories
One Of my old accounts ( cell site & wi fi stuff)
was doing there spring cleaning
IMG_20121031_232248_0.jpg

How would you process these (I have no more HNO3)?
I can tell you the little wings are magnetic and
The white part is porcelain (this is the same
material that one of my very first post was on)

"My iron oxide and magnet attached to my air
hose " now you remember.
Actually I successfully recovered a good amount
thanks to you guys

Anywho here are more pics
Thanks Steyr223 rob
 

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hey Rob, you will have to set up a cell to do those. its way too much base metal to dissolve in AP. if you cant do it, try to find a member close enough you dont have to ship and let them do it for you, if theres enough of them.
 
Beware of Beryllium Oxide. The White Ceramic may be BeO. You do not want to breathe the dust. It is a known Carcinogen and Chronic Poison and one of the worst things to have in your lungs.
Many Telcom boards have a warning printed on them when components contain BeO.
 
It may sound boring to some, but with such a large and even surface: Why not trying to grind it down, best with a milling machine, collect the thin filings and then proceed from there?
 
Geo I can and will set up a cell
Any ideas on voltage / amps?
Anode / cathode material?
I set one up like Steve's video but one
At a time...I considered making a stainless
Steel basket as the cathode?
irons thank you I did not know that(last time I cracked them open)
:shock:
Marcel do you mean the whole chip and wouldn't that still leave all the
base metals
Thanks Steyr223 rob
 
i believe it was GSP that said he used a mild steel container (a steel pot or small metal bucket) and that served as the cathode and stainless steel anode basket. you wont need a basket for those, just an alligator clip. the piece will be the anode. put your sulfuric in a steel pan and hook your negative lead to the pan. clip a piece on the alligator clip and dunk it until the bubbles stop. a 12V manual battery charger will work fine.it shouldnt ever go over 10 amps. the more electrolyte you use the longer you can run the cell before you have to let it cool down. dont let it run hot or it will attack the steel and/or base metal in the piece your working on.
 
Geo said:
hey Rob, you will have to set up a cell to do those. its way too much base metal to dissolve in AP. if you cant do it, try to find a member close enough you dont have to ship and let them do it for you, if theres enough of them.
Click to expand...

I believe that will work on the large Cu piece. Isn't that a heatsink of sorts. I would try to unsolder the ceramic and process that in straight AR after the cell. If they unsolder nice the solder will contain gold as well.

Irons was correct in BeO http://materion.com/Products/MicroelectronicsPackagingMaterials/CeramicPackages.aspx

Melting point 2507 °C, 2780 K, 4545 °F http://en.wikipedia.org/wiki/Beryllium_oxide

This means you should be able to heat it with a torch. I would crack them first so they don't explode :lol:

Eric
 
Thanks Eric
I tried to unsolder it .
It didn't come out very well
Between the base and the porcelain
there is some type of epoxy or glue
between the epoxy and porcelain is
Where the little wings (are these contacts) set
There is nothing to unsolder :shock:
I believe the solder may be from previous installation or maybe
Prep to install
This is what I get when I try to unsolder
Thanks Steyr223 rob
 

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looks like a silicone based epoxy.heat resistant most definitely. maybe a wide, sharp blade between the base and the white part. a few solid taps may break the seal.
 
That is a big heat sink are you certain you got it hot enough?

If you did get it plenty hot it may be a ceramic adhesive. In which case bending them may be the best option.
 
Thanks guys
Yes I heated to the point of the plating
peeling off.
So yes eric do the cell first my thoughts
to, In fact I set one up but the the battery
Charger didn't work right out of the box. :cry:
I will return it tomorrow, it is a 2/6 amp,
Should I get the 2/10 amp instead
I had the scrap yard hit one with the xrf
(It was not filed or scratched) but came back
Copper, steel, zink
I had broke one in half and appears to be a cast like
brass.
Thanks Steyr223 Rob
 
For mine I used a power supply out a computer. -deplating cell

Whats the steal from?

once they are de-plated you can be less gentle with them. you might be able to hit them on the side with a hammer and it might break off. Do it in a box wear and a dust mask danger of BeO. than put the whole thing in AR like a CPU.

Eric
 
Sorry just turned on phone
Thanks Eric
laptop power supply works great!
Very tedious. 1 at a time

I got 12 alligator clips I am going to do a spiral
Pattern and make a simple arm to lift and reload

I am tapping with a hammer before deplating
it appears the only au left may be under the epoxy
Is this ok
also it appears the wings are contacts as when clamped
Only half the inside is deplated (fyi)
Now going against all believe ( i have not searched yet)could you point
Me to a link of what to do with black sludge
I think I know but want to be sure
 
Ok I think I messed up
1rst. I believe it must take more current to
Run more pieces
2nd. You meant a desktop power supply not a
Laptop :roll:
3rd. Geo um...when I asked about a stainless
Steel pot you never said I couldn't use it :shock:
4th. I new to keep the lid on but didn't
understand why now I know the affinity
To air . also it seems to be evaporating.

My pieces are coming out with black crap on them
Should I be rinsing this and the bubbling effect
doesn't kick up anymore after 6 sec
How do you deal with the little bit of acid on your
piece after pulling it out. Thanks Steyr223 Rob
 
Rob, you can use a stainless steel pot. just dont let it run hot. hot sulfuric seems to react to the nickel and can contaminate your gold.
 
Cool thanks
It's better to find out now as I have only done
20 or so
so with leaving it open and pulling moisture out
of the air I would need to heat to evaporate the
Water
I think I should use this batch (what I have done so
Far) fir educational purposes and run through the
Complete process to end.
I will buy new sulfuric and find. A steel pot and cover
it.
Now with that said ...I weighed 2 pieces
with all ceramic gone 1 plated, 1 deplated.
I ended up with. .26 grams :shock:
Is that even possible?
Thanks Steyr223 rob
 
I hope you get the answers that you need I'm not the gold cell person as Sulfuric makes me itch. I use nitric and nuke it all. :evil:

I did use with success a desktop power supply and a glass bowel.

Eric
 

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