Question

For supercritical fluid extraction what should be maintained

i) temperature
ii) critical temp
iii) critical pressure
iv) both ii)
and iii)​

Answer 1

Answer:

The pressure in the system must be maintained from the pump right through the pressure vessel. In smaller systems (up to about 10 mL / min) a simple restrictor can be used. This can be either a capillary tube cut to length, or a needle valve which can be adjusted to maintain pressure at different flow rates.

Answer 2

Answer:

The pressure in the system must be maintained from the pump right through the pressure vessel. In smaller systems (up to about 10 mL / min) a simple restrictor can be used. This can be either a capillary tube cut to length, or a needle valve which can be adjusted to maintain pressure at different flow rates.

Explanation:

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