() A high and narrow tank, with a central cylinder for the introduction of compressed air, used in the agitation and settling of pulp (pulverized ore and water) during treatment by the cyanide process; -- so named because, though originally devised in New Zealand, it was first practically introduced in Pachuca, Mexico.
PACHUCA TANK
Meaning of PACHUCA TANK in English
Webster's English dictionary. Английский словарь Webster. 2012