Process for removing inorganic impurities from coal

Details Process for removing inorganic impurities from coal Process for removing inorganic impurities from coal

B - Operations, Transporting

03

C

209/55

B03C 7/00 (2006.01)

Patent

CA 1187047

ABSTRACT A process for removing inorganic impurities from coal comprising the steps of transferring pulverized coal to be treated by entraining it on a stream A of anti-oxidation gas, feeding the coal laden gas into a dry-type electric precipitator 2 after suitably adjusting the temperature and himidity of the gas stream during transport, and separating particulate inorganic impurities from coal parti- cles by capturing the former in the precipitator 2 by virtue of difference in specific resistance between the two kinds of particles, whereby highly purified coal B is obtained as entrained on the gas stream at the outlet 3 of the pre- cipitator 2.

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