LMG latrobe magnesium limited

LMG Project Progress and Scope, page-6

  1. 2,175 Posts.
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    Yes the question about Hydrochloric acid is valid and if you look at the Hydromet process it is not a high risk.
    ...........from LMG web site:
    Our hydromet extraction process uses acid to treat fly ash. Our process can be summarized as:

    • Dissolving Magnesium (Mg), iron and calcium minerals with Hydrochloric Acid (HCl), & leaching out magnesium as MgCl2

    • Removing Iron Oxide (Fe2O3) & calcium as Calcium Carbonate CaCO3

    • Converting MgCl2 into Magnesium Oxide (MgO)
    & recovering the HCl for reuse in the process

    • Processing MgO into Mg and SCM using the thermal reduction process.

    ............

    So, the only hazardous substance is HCl and to a lesser extent Mg metal. Transportation and storage of HCl is common-place and less hazardous than oxidizing acids like Nitric or the highly corrosive Sulphuric. In any case, little needs to be transported because it's recovered and re-used. If there is a HCl spill, it's easily treatable by either dilution or soda ash. I don't see any other "toxic substances" but happy to be enlightened - yes, I am a retired chemist and materials scientist.

    It sounds like you are down-ramping to try and buy-in cheaper.

 
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