B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 9/02 (2006.01)
Patent
CA 2163380
The crystalliser (70) has an inlet (77) for the liquid medium and an outlet (84) from which the mother liquor followed by the molten crystals can be withdrawn at the end of the crystallisation process. During the crystallisation process, a number of tubes (75) closed at the top can be supplied from above with a trickling film of liquid mixture. The tubes are internally supplied with a trickling film of the liquid medium used for cooling. The liquid medium is supplied via a riser (87), and a medium distributor (92) guides the flow of medium under the distribution tray (81). The pressure of the evaporating coolant in the medium chamber (80), to which the inner chamber of the tubes also belongs, can be controlled, thus controlling the temperature of the wall of the tubes where crystallisation takes place. In order to melt the crystals, gaseous medium can be introduced through a spigot (96) into the crystalliser under controlled pressure. The crystalliser can serve as an evaporator or as a condenser in a refrigeration machine, in order to use both cooling energy and waste heat from the machine.
Kirby Eades Gale Baker
Sulzer Chemtech Ag
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