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Even if the recycling technologies for magnesium is established, where do we obtain magnesium itself? If we are to procure the quantity of magnesium to circulate as energy currency in the current method of mining dolomite, the mining itself would require a huge amount of energy and cost.
Our plan is to obtain magnesium from the sea. There is 1,800 trillion tons of magnesium in the sea in the form of magnesium ion. As everyone knows, you can obtain magnesium chloride (nigari) by condensing the sea water. It follows that we can condense the sea water to obtain magnesium compound, and then we illuminate this with a solar-energy-pumped laser to produce pure magnesium.
Magnesium chloride in the sea water is called hydrous magnesium chloride, which contains chemically bonded water. When it is heated, the water is removed to yield magnesium oxide. The process that follows is essentially the same as the recycling process for magnesium oxide. Acidum hydrochloricum is produced along with magnesium oxide, but it is relatively easy to handle this because it is liquid.

One Comment to “Obtaining magnesium from the sea”

  1. [...] ・レーザーでマグネシウムを製錬できるのか? ・海水からマグネシウムを取る [...]

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