Micron Gold recovery using Mechanical separation.

[Needle]

Mechanical separation seem to be the cheapest and the most environmentally friendly technique of recovering micron Gold from hard rock ore.

Leaching, amalgamation and flotation methods work, but some involve more expense, intensive time involvement, safety precautions and proper disposal of waste.

My Question is... Is their any mechanical separation process better or comparable to the Micron Wave Table from Action Mining Company located in Sandy, Oregon?

Their product seems to be OK, I have Watched a DVD on their products.

(http://actionmining.com/tables.html )

The Pictures are of some Gold I have recovered using amalgamation methods, the micron gold was retorted then melted into these nuggets.

[Jeffro]

The wave table from Action is OK but not the speediest piece of equipment you ever wanna run. All the material you run must be the same size and very small lots.

Have you looked into centrifugal concentrators? Take a look in ICMJ.

BTW, I'm not a hardrocker, I'm a dredger- so this is just something I read somewhere, probably ICMJ.

[djui5]

A guy I know makes a table that recovers gold down to 1 micron. It's spensive though, and more for major operations. Not sure how much your looking to spend.

[RuffandTuff]

Darvin Wade, inventor of several pieces of mining equipment including the RP-4 which will recover down to 1 micron. The RP-4 is about 2' x 4' recovery table that can be installed on a permanent basis or installed temporarily at a stream location. I'm sure that the price is much less than $2,000. Darvin can be reached at (www.globalminingsolutions.com) or at 1-800-407-3269 or (928) 859-3949. The company is located in Arizona (gold country). I hope this helps. RuffandTuff.

[Needle]

Thanks Jeffro, dj and Ruff, I've checked into a few things suggested since the last post and am still in the exploration mode. Always on the hunt for information and ideas.

Needle

Interesting stuff here...

http://www.e-goldprospecting.com/htm...uipment_u.html

[EDDE]

maybe im off base
look into coconut carbon filters

[Needle]

EDDE, actually I have used coconut carbon filters when we were cyanide leaching. I would rather try to capture the micron Gold particles through mechanical separation. I've learned a lot in the last month through suggestions from others and experimenting with different things. Thanks for the input. Needle

[Ed T]

Have you tried placing corduroy in your sluice near the discharge end? I have heard someplace that it works very well in catching micron gold after miner's moss and carpet in the sluice. Carpet being first, then miner's moss, and finally corduroy in series in the sluice.

As for mechanical separation I have heard many different choices for separation of micron gold, though I have no experience in this area.

Ed T

[Needle]

Thanks Ed T, no I haven't heard about adding the corduroy, I've got some of that miner's moss ordered though and can't wait to try it. maybe by then this weather will straighten up a little. Thanks for the corduroy tip, think I'll try it.

Needle

[Eu_citzen]

Have you looked at cleangold? http://www.cleangold.com/

[Needle]

EU, I did look at it one time before but, dismissed it. I went back and took a harder look and read some of the press reports and think it might be worth a try. I think I can use that 6" x 24' x 2" model with what I'm doing now with out much hassle, it could be my first stage ore feeding run with the tailing from it going directly into my free swing bump sluice with, miners moss, worth a shot.
Needle

[Jeffro]

I did some testing with David and Christina a few years back. I'm thinking their sluice would work good at the tail end, under a fine screening.

You can process large amounts of material with it, but I think it'll do better with minus 10 mesh material running through it. Works real good on beach sand, and as an extra cleanup.

[Real de Tayopa Tropical Tramp]

HI: Side thingie. I found that by attaching a thin sheet of plastic to the inlet of my table, I recovered enough fines to pay for the operation, where before it all went into the tailing pond. It merely floats on top of the surface as much as possible and forces the fines under the surface eliminating the surface tension carrying / floating them off. If you have any questions, post away.

Same for the carbon absorbtion , I once had a 5 tank operation.

Don Jose de La Mancha

[rmptr]

Is there some more efficient method than heap leaching for recovery of micron gold?

R M P T R

[platdigger]

So, this cleangold system......how does it work?

I went to that website, but it just looks like a smooth piece of plastic.......?

Randy

[Jeffro]

It has a series of magnets built in. Black sands in the magnetic field build riffles that catch the fine gold. Thing is, their "liquid" riffles, impossible to clog up. Each time the black sand is disturbed by material running over it, the gold just sinks deeper and deeper into it.

Nice little slickplate.

Like I said, works pretty good for fines. You'll wanna catch your nuggets earlier in the process though.

[Eu_citzen]

EU, I did look at it one time before but, dismissed it. I went back and took a harder look and read some of the press reports and think it might be worth a try. I think I can use that 6" x 24' x 2" model with what I'm doing now with out much hassle, it could be my first stage ore feeding run with the tailing from it going directly into my free swing bump sluice with, miners moss, worth a shot.
Needle

I have heard it gets a recovery about as high as mercury or higher, not sure if it's true though.

[Needle]

Is there some more efficient method than heap leaching for recovery of micron gold?

R M P T R

Probably not, big mining company's are making a profit using this method. As a one man operation who, has a little experience with cyanide leaching , I personally do not want to use that method for recovering micron Gold.
It takes a great expense to get setup to do it efficiently...
It takes constant monitoring of leach fluids to dissolve the gold particles
which involves... ( titration - a test with silver nitrate to determine the correct amount of cyanide in the solution and a constant PH Test to keep the solution At
a PH of 10 or 11 using sodium hydroxide.)
This is not an operation you can just shut off the lights and go home.
There are other leach systems besides Cyanide, I've seen some of the systems from www.actionmining.com or go directly to pdf file http://www.actionmining.com/Catalog.PDF
If I can't get the Gold using mechanical separation, I don't care if I get it at all.
I want to recover it as simple as possible not complex and hazardous.

Needle

[bigm]

Gentlemen you might want to consider this

http://www.eagle-research.com/browng...es/possib.html

mike

[bigm]

Forgot to tell you look half way down the page to recoverable ore

mike