422 / | HD | CHEMICAL APPARATUS AND PROCESS DISINFECTING, DEODORIZING, PRESERVING, OR STERILIZING |
243 | DF | PHYSICAL TYPE APPARATUS {8} |
245.1 | .~ Crystallizer {5} | |
250.1 | DF | .~.~> Crucible-free zone refiner |
251 | DF | .~.~> Including means separating and conveying crystals to a melting zone |
252 | DF | .~.~> Hydraulic classifier with crystallizer |
253 | DF | .~.~> Including feed compartment for introducing nutrient |
254 | DF | .~.~> Movable crystallizer or scraping means |