Magnesium can be sourced from the ocean through a process known as seawater extraction. Seawater is naturally rich in magnesium, with an average concentration of around 0.1-0.13% magnesium ions by weight. While this may seem low, the vast quantity of seawater available means that significant amounts of magnesium can be extracted.
The extraction process typically involves several steps:
We collect seawater directly from the shores of Vancouver Island, and then it is transported to our extraction facilities.
The collected seawater undergoes concentration to increase the magnesium content. This can be achieved through various methods, such as evaporation ponds or filtration processes. Evaporation ponds allow seawater to evaporate under the sun, leaving behind concentrated brine that is rich in magnesium ions.
Once the seawater has been concentrated, magnesium ions are precipitated out of the solution in the form of magnesium hydroxide or magnesium carbonate. This precipitation is typically induced by adding a chemical agent, such as lime (calcium hydroxide), to the concentrated brine.
The precipitated magnesium compounds are then separated from the remaining seawater solution. This can be done through filtration or centrifugation processes, which isolate the magnesium-rich solids from the liquid.
The isolated magnesium compounds are further processed to convert them into magnesium oxide (MgO) or other magnesium compounds suitable for various applications. Magnesium oxide is a common form of magnesium used in supplements, industrial processes, and other applications.
Finally, the magnesium product may undergo purification steps to remove impurities and ensure it meets quality standards for its intended use.
