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Extracting pure Magnesium from Magnesium Carbonate (climbing chalk)


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Posted

Hi, I wanted to know if it is possible to do this, I know that it is insoluble in water but is it possible to somehow decompose it into Pure Magnesium and CO2?

I saw this:

https://www.google.com/patents/US5279716

MgCO3 →MgO+CO2 (3)

 

If anyone knows how to, please reply

Posted

thanks, I think that there isnt an example with magnesium carbonate on that page, but i will take a further look. I know that its cheaper to buy, but i just wonder if its possible

Posted

Probably a look for the alloy of "alloy wheels" may show something useful. Maybe look at scrap from the auto industry.

  • 3 weeks later...
Posted

Hi, I wanted to know if it is possible to do this, I know that it is insoluble in water but is it possible to somehow decompose it into Pure Magnesium and CO2?

I saw this:

https://www.google.com/patents/US5279716

MgCO3 →MgO+CO2 (3)

 

If anyone knows how to, please reply

Ops! Magnesium oxide is not Mg metalic...

Posted

Magnesium Oxide is also a very stable refractory material good to about 3000K -not a good place to get stuck.

 

Mg Carbonate to Mg chloride may be more useful. Also a trip to a scrap yard for Mag alloy wheels -even bent ones! would be a cheap and easy solution.

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