Page 15 - PIGNAT catalogue 2020 GB_092020

MINI UNITS

CRA/200 CONTINUOUS CRYSTALLIZATION

➢ Study crystallization process of a stirred mixture
through controlled cooling
➢ Continuous process

Parameters influence
Temperature, stirring speed, concentration
Feeding flow rate influence

Dissolution of the solid to re-crystallize

Crystals continuous draw-off

Data supervision– acquisition by tactile screen

General specifications Instrumentation

• Glass crystallizer. SS flat cover. • Flowmeters.
Level detector. • Temperature probes.
• SS immersed cooling coil.
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Cristallization Filtration • Stirrer, 3 counter blades.
• Dissolution prepared in a glass
graduated vessel with heating
element and magnetic stirrer.

• Variable flow peristaltic pump.

• Thermoregulator group
hot/cold.

100 –240 V
air
• Glass Büchner filter. 1ϕ - 50/60 Hz Compressed
Dim : 140 x 60 x 110 cm - 70 kg

2
The solution is prepared in tank 3.

The heating element and magnetic stirrer allows the dissolution.

The crystallization tank 1 is continuously feeding.

The stirrer 2 allows the homogenization mixture end heat transfer.

The cool flowrate circulating in internal coil allows to cooling the solution. 3
1
The set-point group and cool flowrate allows to control cooling of solution

A level detector allows to automatic drawing-off.

The Büchner filter (vacuum pressure) can be used to collect the crystals.

5
4
Option
Crystals filtration :
Vacuum pump

Chemical engineering & unit operations 15