n at high tempera- The concentrator consists of a vertical cast iron cylinder horizontal cylinder, or adsorber, 8 meters in length by 1:2 tures. lined with lead, and containing 4 concentric leaden worms. 4, Milk.—The use of a vacuum for concentrating milk meters in diameter, containing a little… … product as regards color and odor, as the evaporation of (2) in six vertical cylinders, each having 400 liters capacity. 125° to 180°. Under the action of this temperature and of water occurs, under a vacuum, at an extremely low tempera- When the vacuum is-at from 2 to 3 millimeters of mercury, the…
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