The concept of utilizing gravity for laden trucks descending / unladen ones ascending is tantalizing but not, alas, apposite in this case. Altiplanar lithium deposits are in or of salars and there is no engineering case of which I know or can envision whereby it is more appealing to process them at sea level than in situ.
If we were discussing iron or copper ores or even concentrate - then I couldn’t possibly agree more, and I can see where this gravity regen advantage could pencil out to lucratively justify some Andean railroads that heretofore have been prohibitive, rather than trucks using those truly nailbiting sarcophagi misnamed as “highways”.
On that topic, Australian iron miner Fortescue is doing just this from the Pilbara to the sea, under elevation drops massively smaller than those of the Andes.
If we were discussing iron or copper ores or even concentrate - then I couldn’t possibly agree more, and I can see where this gravity regen advantage could pencil out to lucratively justify some Andean railroads that heretofore have been prohibitive, rather than trucks using those truly nailbiting sarcophagi misnamed as “highways”.
On that topic, Australian iron miner Fortescue is doing just this from the Pilbara to the sea, under elevation drops massively smaller than those of the Andes.