IKA RV 3 eco, Instructions Manual

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13
J connection
K
clamp NS29 plastic
L condenser
M
(PTFE) tube
+
J
K
Q
P
O
L
N
M
www.
N receiving flask
O
evaporator pistion
P ball joint clamp
Q
stopcock
Useful information
Distillation is a thermal separating process for liquid compounds based on substance-specific,
pressure-dependent boiling points through evaporation and subsequent condensation�
The boiling point temperature decreases with decreasing external pressure which means that
work is usually done under reduced pressure� In this way the heating bath can be maintained at
a constant temperature (e�g� 60 °C)�
Using the vacuum, the boiling point is set with a steam temperature of approx� 40 °C� The
cooling water for the condensation condenser should not be warmer than 20 °C (60-40-20
rule)�
A chemical resistant membrane pump with a vacuum controller should be used to create the
vacuum� The pump is protected from solvent residue by the addition of a condensate flask and/
or a vacuum separator�
Working with a jet pump to create a vacuum can only be recommended to a limited extent as
the solvents may contaminate the environment when using these systems�
Speed, temperature, flask size and system pressure all affect the evaporator air capacity�
The optimum capacity of the flow-through condenser is approx� 60%�
This corresponds to condensation on approx� 2/3 of the cooling coil� With larger capacities
there is the risk that the uncondensed solvent vapor will be extracted�
The device is designed for operation with a cooling water supply system (e�g� laboratory
thermostat), but can also be run off a water supply line� Please refer to the “Technical Data” for
information on cooling water pressure, temperature constancy, and flow rate�