Principle
In countercurrent distillation (rectification) using a column,
the rising vapour can enter into interactions with the condensate.
In this manner, a fractional distillation, i.e. a distillation in
several steps for the separation of substances with similar boiling
points, can be performed in a single apparatus. If bubble tray
columns are used condensate can be removed from the individual
bubble trays.
Benefits
- Simplified implementation: all pre-settings already prepared
- Didactic gas chromatograph included
- Glass jacket system easily expandable
- Simultaneous temperature measurement at four points
Tasks
- Investigate the mode of operation of a fractionating tower on a
two-stage bubble tray column. Distil a mixture of three n-alcanes
first with total reflux and then without any reflux.
- Subsequently, examine and compare the initial mixture, the sump
product, the head products and the condensates of both trays gas
chromatographically.
What you can learn about
- Bubble tray column
- Rectification
- Continuous and discontinuous distillation
- Vapour pressure
- Vaporisation
- Condensation
- Raoult's law
- Gas chromatography
Necessary accessories
- Precision balance 620g/0.001g
Software included. Computer not provided.
1 year warranty
