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shale mining equipment in spain

shale mining equipment in spain

Shale Mining Equipment In Spain. OilShaleExtraction HowStuffWorks. Oilshalemust be mined using either underground or surfaceminingmethods. After excavation, the oilshalemust undergo retorting. This is when the mined rock is exposed to the process of pyrolysis extreme heat without the presence of oxygen to a substance, and producing a ...

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