Extracting gold using borax? Can someone explain?

Shop deals on ebay
Advertise with us
shop deals on amazon
xelexo
Gold Refining Forum

Help Support Gold Refining Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
NobleMetalWorks

NobleMetalWorks

Well-known member
Joined
Feb 29, 2012
Messages
1,463
Location
East Bay Area, California
I stumbled (literally, I was using stumbleupon) across a video on youtube that claims to show how you can extract gold using borax. I understand the purpose of using borax when you melt gold, for seasoning a crucible and attracting some contaminants, and for heating reasons etc. What I don't understand is how they can make this claim, when it seems like they are extracting the gold out of dirt material, recovering it, and the last part melting the gold into a button using borax. I was expecting to see some process totally different from others I have read about, but it just seems like a fairly common process. I don't see any borax being used to extract the gold, only to melt and maybe remove some impurities.

If I am missing something, can someone please explain it to me?

[youtube]http://www.youtube.com/watch?v=X6Sawj0HyF0&feature=related[/youtube]
 
These are 9:48 minutes of BS and i really feel like i want to punch the "Borax Expert" straight in the face.

They took an almost meaningless detail, like using borax to substitute the use of mercury, where infact they should have focus on better sluicing and panning of the concentrates.
 
Thank you, I was worried that I was missing a significant part of my brain having missed the part where they would have used borax instead of mercury, good point by the way.

I bet the guy panning immediately used mercury as soon as the borax rep left. Matter of fact, I think I saw a video recently with guys half naked using mercury bare handed, and that guy looks like someone in the other video. Hmmm...
 
Hello All
Regarding the video so I have not a knowledge of its contents.
But when I heard the expert I could recognize his dialect, same as my DANISH. So googled him and he works for GEUS. Geological Survey of Denmark and Greenland (GEUS).
He does a great job to educate workers in the mining industry in the 3 world to avoid mercury poisoning. so it's probably not so bad.
Best regards, Peter.
 
The goals are noble indeed. Mercury does have horrible long term effect (which could be easily avoided btw).

This does not change the fact that 99% of what said in this video is plain rubbish.
 
Yeah, that was my point. Usually they would add mercury to the trammel, pour off the waste and retain the mercury amalgam. Then the mercury amalgam is strained through cloth until most of the mercury has been squeezed out, then you are left with a ball of mercury/precious metal amalgam. Then the excess mercury is burned off, I think the ratio of precious metal to mercury is something like 1/5. Then the mercury is burned off when the gold is melted. The borax was only used after the gold had been extracted. At best the borax was used to refine impurities, not extracting the gold.

Also, I think a very simple wet scrubber will allow the reclamation of incinerated mercury, right?

If I'm wrong about any of this, someone please correct me. It just bothers me that the video claims that borax is used to extract gold, when in fact that just simply isn't the case. Seems like it's just propagating a misconception.
 
After watching video, I do not see any misinformation, beside him saying the words pure gold, (although it should result in a high quality of gold, most of the lighter metals were removed in the sluice and panned off, the soap in panning and grinding and re-panning also helped to remove some other metals and to keep the fine gold powders (normally picked up as amalgam with mercury).

I agree with the author of teaching these miners of how to process without use of the mercury, and the way he is teaching them would produce gold of the same quality of gold they were producing without poisoning them and their children.

I am sure the gold is sent out to be refined, the video is not talking about refining gold but is a good video of recovery of gold, without the use of creating toxic waste.
 
I agree, milling and panning the gold in the way they do is much better than using mercury in the mill to collect the gold into an amalgam. But Borax wasn't used to extract the gold, not at any point, extraction was done by trammel and panning so far as I can tell, but then again I have only read about gold extraction and watched video's, so far to date I have only recovered and refined. Borax was used to melt the gold and draw out impurities I thought, not draw gold out of any material.

The only difference I can tell, between extracting with Mercury and this video just seems to be the absence of Mercury, and substituting it with a trammel, nothing more. They didn't substitute anything for Mercury itself, and Borax would be used in either process, regardless. Sounds like a commercial for Borax "Start using Borax, get cleaner and more gold, and make more money".

I think they should have spent more time on the trammel and the material they used "felt" to capture the heavy minerals, after all that was the entire point of the video, wasn't it?
 
SBrown said:
Sounds like a commercial for Borax "Start using Borax, get cleaner and more gold, and make more money".
Click to expand...

You read my mind SBrown...
I can't see the point in all of this, that's all.
 
I'm still a beginner to the recovery/refining industry, yet, after watching that video I still don't see the use of Borax the way the video depicts. I can see it being used for the crucible and maybe putting it in the bath water to help keep the gold from floating away. Other than that, it's probably a Borax commercial.

I still have dirt that I classified into 5 classifications and I'll maybe do one batch of dirt to see if it'll help make the gold stay on the bottom in the water. I'll report what I get once I try it. Speaking of Borax, I bought a box last year before moving here and I still haven't found it yet. It may be out in the shed.. I hope.

testerman
 
I am new to the forum. I have had some successes on my own with the help of hoke google and some other sources. I found this video previously and everyone so far has given great answers to the question. I would like to add something though... The difference between melting and smelting. melting is what you do to a material that is metal, without flux. What you would do with pure PMs. :idea: Smelting is what is done to remove impurities from gold and reduce/oxidize other materials out. Since gold does not oxidize borax affects lighter elements that oxidize and rise to the surface.

The only other thing i'd like to add at this time is about mercury. It's impact on people is notable, but it's damaging affects on the ecosystem are a greater concern. The 'borax rep' doesn't have a problem with the people poisoning themselves, it's the people and animals who they are poisoning, the unintended victims, with their extraction processes using mercury for amalgamation.

(for everyone that misunderstands smelting and thinks adding a (edited by Harold) ton of borax all at once to impure gold is going to result in pure gold you'll end up with a dish full of boric glass... I came across this forum and posting because I made this mistake. I think it's not actually a problem except I keep running out of oxygen before reaching an even molten mixture. I need a bigger tank. Please correct me if I'm wrong on any point...)
 
CASACEO said:
Smelting is what is done to remove impurities from gold and reduce/oxidize other materials out. Since gold does not oxidize borax affects lighter elements that oxidize and rise to the surface. ////////Please correct me if I'm wrong on any point...)
Click to expand...

Ok, lets talk about borax. It does not do as you suggest---give cause for lighter elements to rise to the surface, not if they're metallic. What it does is absorb oxides, allowing the base metals that may be present to readily alloy with gold. It is a necessary addition when melting pure gold, but only in moderation. There is generally enough present in a properly seasoned melting dish to serve the purpose. Once melted, pure gold does not benefit by borax, although the melting dish does, as it functions much like a lubricant, allowing the gold to flow freely, without sticking to the dish. That is not true if the borax is dirty.

Not to pick fly specks from pepper, but we try to be very precise in the things we say on this forum. That's to avoid someone getting the wrong impression, or for those who don't use English as a first language to not encounter statements that make no sense, or are dangerous when misinterpreted. To that end, I have appointed myself the forum language cop (in spite of having need to be corrected myself on many occasions). Please note that you used a word that doesn't exist. The word is ect. There is no such word. If you meant etc., the contraction for two words, et cetera, please take note of its proper spelling.

Please remember---spell check is your friend. Don't be afraid to use it.

Should you take note of errors in my posts, please feel free to correct me. So long as you do it mannerly, it will be accepted in the spirit in which it is offered. I might not be so agreeable if you are rude. Readers likely can regale you with tales of me and my exploits with folks who lack manners. (Not insinuating you do not, I hope you understand).

Welcome to the forum.

Harold
 
butcher said:
CASACEO,
why get a bigger oxygen tank, if you need an oxidizer why not just use nitrate in your flux.
Click to expand...

I would need a bigger oxygen tank to attain an even melt. I will try some nitrate in my flux as you suggested, however nitrate will not melt the mixture without fuel. I have been using a MAPP Oxygen torch for my melting.

Harold_V said:
(Not insinuating you do not, I hope you understand).
Click to expand...
I do understand, now. I am not insulted and will choose my vernacular more carefully in the future. Also, thanks for explaining more about borax.
 
CASACEO,
I thought you were discussing smelting, and using oxygen from a tank to oxidize base metals, I misunderstood.

Nitrate is not needed to melt gold if it is refined; here you have removed the base metals.

For ore nitrates can be used as an oxidizer in the flux to oxidize metals in the smelt, helping to separate them from the gold which will not oxidize, letting the base metal oxides mix with the slag glass from the borax (and sand or glass used), this of course would be best done in a furnace.
 
A new fine research article on Borax Method to Recovery Gold by Rasmus Køster-Rasmussen, MD PhD came out. The core of it posted on http://www.911metallurgist.com/blog/mercury-free-gravity-borax-method-gbm
 

Latest posts

Back
Top