Removing stones and retaining gold

[Montecristo]

We have a large gold and silver purchasing business and recently wanted to add the feature of stone removal for our customers, so we purchased the Simplicity Refining System. We are able to recover stones, but we are losing gold. Every batch of approx. 125 grams we are losing approx. 10-15 grams of gold. I have spoken to everyone at Simplicity and the answer I receive is that the gold is there. I have checked the solutions for the presence of gold and have been very careful not to pour off any of the brown particles. I am being told from the manufacturer that the gold is just in the system, but after 3 attempts. I have not been able to find or recover approx. 30-45 grams of pure gold. I emptied the ceramic cell and have tested the main tank for the presence of gold which displays a negative test result. Does anyone have any ideas on this system or process.

 

[Fournines]

We have a large gold and silver purchasing business and recently wanted to add the feature of stone removal for our customers, so we purchased the Simplicity Refining System. We are able to recover stones, but we are losing gold. Every batch of approx. 125 grams we are losing approx. 10-15 grams of gold. I have spoken to everyone at Simplicity and the answer I receive is that the gold is there. I have checked the solutions for the presence of gold and have been very careful not to pour off any of the brown particles. I am being told from the manufacturer that the gold is just in the system, but after 3 attempts. I have not been able to find or recover approx. 30-45 grams of pure gold. I emptied the ceramic cell and have tested the main tank for the presence of gold which displays a negative test result. Does anyone have any ideas on this system or process.

If you can provide us with some details of what you are doing, we may be able to tell you what you are or are not doing wrong.

1) Are you certain that you are losing gold? Sounds like a silly question, but what is the material you are putting in to one of your refining batches? Is it all one type of karat, or is it mixed? Do you know exactly what went in?

2) What is the weight of the stones that come out of one of your batches? Please provide actual starting and ending numbers.

3) How much fine gold was recovered vs. what you were expecting?

Thanks,

Matt

 

[goldsilverpro]

What was the gold fire assay of the bar you processed in the Shor unit?

 

[jimdoc]

Did you check for platinum and palladium?

Jim

 

[Montecristo]

I should have provided a few more details, so here they are. We have an xray assay machine and know the exact amount of gold we are putting in and what should be coming out. I have taken the stones into consideration and subtracted the weight of the stones from the starting weight. (afterwards of course). At this time I am not concerned with recovering any other elements as the main concern was removing the stones and recovering the gold. After 2 processes with stones I used a bar of gold, .492 %, slightly under 12Karat. I wasn't even concerned with acquiring pure gold as I added all the bits that did not dissolve that were remaining in the pouch with the mud and melted it in our F9 induction machine. So I know I wasn't blowing the gold away with a torch.
I started with 125.9 grams of .492 purity. I received 56.5 grams of .793 purity, which equates to 44.8 grams of pure.
According to my calculations I should have received approx. 62 grams of pure gold. Our assay machine is accurate as I have verified.
After adding precipatant to the water removed form the ceramic cell, I tested the water with the testing solution provided with the system, it shows no signs of gold remaining in the solution. I went as far as letting the precipatated gold and water set all night and made sure I only poured off clear water and no mud or flakes.

 

[nickvc]

I'm not sure what this system is but I'll assume it's a porous cell that uses electrical current to dissolve the gold, this been the case I'll also assume from the figures you quote that the manufactures are correct and the gold could well still be in the cell. Try running the cell with copper instead of gold and see if your metals are in the porous cup!
In my opinion you could do a better job following this forum than buying a system, I'm in the process of setting another large buyer up to do exactly what your trying to do and I wouldn't spend a cent on that system....if my client thought he could buy a ready made system he would, but they are so limited in their capabilities that it's totally wasted money, read on here and learn it's very simple, read Hoke, follow the threads, research useful old threads and do it properly!
The truth is you have wasted your money and time on that rubbish for the job you have in mind for it, stone removal is hardly a science it's a, as best as you can achieve! You won't get fine metals but you can recover the stones, usually, as I said it's more of an art form than a science. Some alloys dissolve with no problems others stubbornly will not be touched by normal methods but a full understanding of the chemistry involved helps get the best results.

 

[qst42know]

Where does the silver chloride go in this Shor fizzer cell?

Molecules of gold (and perhaps chunks) that lose contact with the electrode will be with the silver chloride mud.

All that fancy stuff and you only need a beaker or two and a hotplate.

 

[Palladium]

That thing is really a Flux Capacitor and shor has yet again figured out another way to teleport your money into their pockets. :twisted: