METALS AND MINING APPLICATION NOTE 7.02.01 LONGWALL MINING: EMULSION STATION www.kpatents.com LONGWALL HYDRAULIC FLUIDS, FIRE RESISTANT EMULSIONS Typical end products Coal Chemical curve: R.I.per BRIX b.w. at Ref. Temp. of 20°C Introduction Longwall mining is an underground coal extraction method, which removes large volumes of coal with minimum impact to the surface environment. It involves cutting parallel underg

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