RE: RE: RE: RE: RE: RE: RE: RE: RE: RE: RE: Wow..M Thank You Rock for spelling out the interpretation of the technical report quite clearly, to make it understandable to all of us. However a minor correction if You don't mind:
Point 7: Yes there is indeed lots of iron in pyrrhotite since it is esentially Fe sulfide, often with small amounts of Cu or Ni and/or other metal values in it but most certainly NO PHOSPHATE! it is envisioned that the pyrrhotite would be roasted and the calcines (iron oxides) used as well as the sulfur dioxide which would then be converted to sulfuric acid. This acid would then be used to convert the by ship IMPORTED phosphate rock to super phosphate fertiliser. The roasting process would require natural gas however which iI am not too sure that it is available at this location. Things will be spelled out in more detail as the project is nailed down more accurately over the next months and perhaps a year or two.
My 2 cents worth, Wolf E
Oh BTW the iron calcines could of course be shipped along with the iron oxides from the iron rich overburden as raw iron ore.
A cautionary note here: Roasting is expensive to run, not to mention the very substantial installation required to build a roaster - offgas collection system - acid plant and super phosphate facility
I am not sure wheer all this pyrrhotite is coming from? My interpretation is that the cu rich portion of the polymetallic ore deposit is separated from the ore through flotation thus split into a copper rich concentarte which also contains the Au and Ag and othe metals plus pyrrhotite, essntiallya waste product which can however at great cost be converted to acid and Fe calcines.