Teaching equipment : Evaporation - crystallization

 

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Evaporation - crystallization

DESCRIPTION

 

This unit combines, in series, two methods of separating the components of a mixture:

Evaporation : This step allows for the partial or complete separation of a liquid from a mixture through the process of evaporation. The evaporation of liquid may leave the remaining solution saturated with respect to a specific solute.

Crystallisation : In this step the solution is cooled resulting in the crystallisation of solute because of lower solubility at low temperatures. The mixture studied consists of a solvent (e.g.: water) and a solid body (e.g.: FeSO4 or CuSO4).

The unit is semi-automatic and works in continuous mode. A user manual is included.

 

Teaching equipment : Evaporation - crystallization - GPC VC0

TECHNICAL SPECIFICATIONS

1. Supply tank - polyethylene
2. Supplying diaphragm pump P1

- flow rate :0-16 L/h
3. Evaporator
- Borosilicate glass
- With an electric resistance
4. Receiver of the distillate : 2 L
5. Crystallizer

- Borosilicate glass
- With a stainless steel coil
6. Agitator
- Agitation speed 50-2000 min-1
7. Electric heating resistance of the crystallizer
- Power = 2000 watts
- Permits adjustment of the temperature of the evaporator
- Stainless steel resistance 316 L
8. Condenser of the evaporator ECH 1
- 1 part in stainless steel, 1 part in borosilicate glass
9. Cooling coil of the crystallizer ECH 2
- Stainless steel 316 L
10. Electric heating cord
- Power 33 Watts

QV1 : Water flow rate on the evaporator exchanger

(0-100 l/h)
QV2 : Water flow rate on the crystallizer coil (0-60 l/h)

TEMPERATURE MEASUREMENTS

T1 : Water inlet into the double-walled of the condenser ECH1
T2 : Water outlet of the condenser ECH1
T3 : Water outlet of the crystallizer coil
T4 : Vapour temperature
TRC5 : regulated temperature in the evaporator
T6 : Temperature into the crystallizer
TRC7 : Regulated temperature on the Evaporator-crystallizer line

PEDAGOGIC APPLICATIONS

 

• Study of a batch or continuous process
• Thermal and matter balances
• Study of crystallisation balancing
• Kinetic study of crystallisation
Effect of agitation and temperature

 

 

DIMENSIONS
Length : 2 200 mm
Width : 800 mm
Height : 2 400 mm
Weight : 150 kg

Teaching equipment : Evaporation - crystallization - schema GPC VC0


 

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Evaporation - crystallization



Didatec Technologie - ZA du Parc 42490 Fraisses -  France -   Tel : 33 (0)4 77 10 10 10 -  Fax : 33 (0)4 77 61 56 49   
E-Mail : didatec.technologie@wanadoo.fr