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PSIC 2019 · Group
052

Mining of lignite

This group covers the mining of lignite, also known as brown coal, through both underground and surface methods, including liquefaction techniques. It also involves processes to enhance the quality of lignite for transport and storage.

Includes

  • Mining of lignite (brown coal) through underground or surface methods
  • Mining through liquefaction methods
  • Washing, dehydrating, pulverizing, and compressing lignite to improve quality

Excludes

  • Hard coal mining 0510
  • Peat digging and agglomeration of peat 0892
  • Test drilling for coal mining 0990
  • Support activities for hard coal mining 0990
  • Coke ovens producing solid fuels 1910
  • Manufacture of hard coal briquettes 1920
  • Work performed to develop or prepare properties for coal mining 4312

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