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Message History

ZIOS copper chelating agent paper
I stumbled across this 5 yrs old paper that may have some specific / theoretical applications to certain processes refiners practice.

My initial thoughts lean towards being able to selectively extract copper from a working silver cell electrolyte perhaps to delay it from fouling too soon?

Maybe in waste treatment stream too.

Its a long and complex rea...

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20 kg of gold dore bullion with 99.5 % purity.
It is planned to be legally exported in ingot form, in monthly batches of 20 kg, with 99.5% purity, originating from Kyrgyzstan.

I would be grateful if refineries based in Europe could provide their best offer.

Payments will be made in USDT.

You can contact Erdem Ozcan via WhatsApp at +996 506 196 852.

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Help with AR
Help!

Hello

I have recently bought some river gold flakes and have just tried to refine it last night. It’s not the first time I’ve done it and it went well the first time.

Once all of the gold had dissipated (I left it at very night to make sure) I used urea to neutralise the nitric acid before adding sodium metabisolfate. Unlike the first time I did ...

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PGM stannous testing
hello,

I have a waste material dropped out with copper that is bright yellow. When I test with Stannous it turns dark black. Over the course of a day it turns back to a q tip color. I’ve read somewhere on this site that palladium or platinum does that? What do you think. I’m including a picture of the material in HCL.

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does anyone process latex gloves?
I'm processing a new batch of filters and papers. I keep these separate from garbage until the can is full, incinerate, nitric boil, and then AR. I usually do not include the latex gloves I used for processing and put those in a separate garbage can from the filters/papers. In the past I have thrown the gloves away thinking it not possible to process them by means of incineratio...

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