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 Nickel Bullion & CuNi Bullion Coins
 How To Seperate Copper From Nickel??
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Bart
Penny Pincher Member


Canada
120 Posts

Posted - 04/10/2009 :  19:25:49  Show Profile Send Bart a Private Message

Hey - What is the easiest way to seperate copper from the nickel in the US nickels? Or should I be asking whats the cheapest method to do this. They are or will be worth more seperated right? Any ideas on how its done?

75% copper & 25% nickel = Cu3Ni??

How are they attached molecule to molecule? Or is it a big chain molecule like the gasoline or just 3 Cu of every Ni????

Has anybody done this or tried it?




Nice. Yes. Very nice.

daviscfad
1000+ Penny Miser Member



USA
1664 Posts

Posted - 04/10/2009 :  19:51:37  Show Profile Send daviscfad a Private Message
I have not done this but would like to see how it is done as well, so when it becomes available to do in the US i will know

Inquiring minds want to know
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highroller4321
1000+ Penny Miser Member



USA
2648 Posts

Posted - 04/10/2009 :  20:09:21  Show Profile Send highroller4321 a Private Message
I think it is worth mentioning that it is currently illegal to melt U.S nickels in the U.S

Copper Penny Investing
www.portlandmint.com
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MatLock
Penny Pincher Member



USA
122 Posts

Posted - 04/11/2009 :  16:09:28  Show Profile Send MatLock a Private Message
It must be possible. Try reading up on mining techniques, such as electrolysis and chemistry.
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Kurr
1000+ Penny Miser Member



2906 Posts

Posted - 04/11/2009 :  17:19:31  Show Profile Send Kurr a Private Message
You would need to dissolve them, then drop them one by one from the solution. Needs acid. Also probably current. Electro-chemistry. Look at refining techniques such as goldrefiningforum.com problem is copper sponge from the acid drop. Basicly I have heard that the process is so "dirty" and exspensive to do to "clean" standards, that this type material goes to overseas.


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He created it. He controls it. He gave it to us for His use. Why did we turn from sound scriptural currency that PROTECTS us?

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slickeast
1000+ Penny Miser Member



USA
2533 Posts

Posted - 04/11/2009 :  17:41:24  Show Profile Send slickeast a Private Message
HR, the person asking is in canada. so he can melt the US coins all he wants.

I don't try to figure out how to melt anything. I want to be more of a 'supplier' of metals. I just hoard the materials.

You don't have to be the BEST you just have to be.......SLICK

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Bart
Penny Pincher Member



Canada
120 Posts

Posted - 04/11/2009 :  18:57:22  Show Profile Send Bart a Private Message

Hi Matlock & Kurr -

I agree with both of you that electrolisis-chemistry is required to seperate the 2 metals. I've been away from the classroom for too many years. It was one of my favourites & best class in high school.

I'm thinking that the coins should be in an agitated acid bath to dissolve the metals & then run some DC voltage to a copper anode through an acid - probably sulfuric - to a pure nickel cathode or vice versa. Something along those lines.

Maybe I should talk to the chemist at a plating shop. Thanks for confirming my thoughts & getting me headed in the right direction!

This will be another spare time project. It might be a while before I get back to you about this. The Misses has many warm weather projects for me.


Nice. Yes. Very nice.
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fasTTcar
Penny Hoarding Member



Canada
573 Posts

Posted - 04/12/2009 :  08:58:57  Show Profile Send fasTTcar a Private Message
The question is why would you want to?

CuNi is sold as an industrial commodity. Many applications use cupronickel in a 70:30 or 80:20 mix. US nickels are already pre mixed.

www.londongoldbuyer.com
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goodcents
Penny Hoarding Member



USA
504 Posts

Posted - 04/20/2009 :  19:58:56  Show Profile  Send goodcents an AOL message Send goodcents a Private Message
I read your url fast and had to re read it....by first glance I read longdonggoldbuyer....lol
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n/a
deleted



5 Posts

Posted - 04/26/2009 :  21:45:05  Show Profile Send n/a a Private Message
Can i sold my colombian coins with a CuNiAl composition of 92:6:2 mix? Or these coins are valueless (except its nominal value, of course...) Thanx.

Recycling and investing is life!!! The rest is just details...
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Cupronickel
Penny Pincher Member



USA
110 Posts

Posted - 05/16/2009 :  22:34:58  Show Profile Send Cupronickel a Private Message
quote:
Originally posted by fasTTcar

The question is why would you want to?

CuNi is sold as an industrial commodity. Many applications use cupronickel in a 70:30 or 80:20 mix. US nickels are already pre mixed.


As 70/30 is a standard alloy, it wouldn't take much balancing in the furnace when melting the US 75/25 composition, to get to a 70/30. That is, if melting current US coinage was legal! Any type of chemical, or electrochemical processing is going to be a huge loser and create a big mess.

Edited by - Cupronickel on 05/16/2009 22:35:48
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biglouddrunk
Penny Pincher Member



138 Posts

Posted - 08/10/2009 :  00:08:15  Show Profile Send biglouddrunk a Private Message
Chromic Acid CrO3 (aq) will disolve most metals, but not Nickel. I sure there is a better way Hex-chrome is a nasty chemical.
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jadedragon
Administrator



Canada
3788 Posts

Posted - 08/10/2009 :  03:37:26  Show Profile Send jadedragon a Private Message
The RCM sorts and sells CuNi by the barrel for industrial use. Works for them so there must be a market.

“The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man.” – George Bernard Shaw.
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biglouddrunk
Penny Pincher Member



138 Posts

Posted - 08/12/2009 :  00:25:38  Show Profile Send biglouddrunk a Private Message
One can dissolve and electroplate copper in a cyanide bath. There always is an easy way to separate two metals. The question one needs to ask is how much energy one needs to use to separate two metals. It's an easy thing for a factory to do, but if somebody here wants to make bricks it would be tough.
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