Service
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.
Learning objectives
- Bubble tray column
- Rectification
- Continuous and discontinuous distillation
- Vapour pressure
- Vaporisation
- Condensation
- Raoult's law
Necessary accessories
- Precision balance 620g/0.001g
Software included. Computer not provided.
Device name
Item No.
Quantity
Name
Filename
Filesize
Filetyp
(en) Versuchsbeschreibung
p3031667_en .pdf
Filesize 3.10 Mb
pdf
(es) Versuchsbeschreibung
p3031667_es .pdf
Filesize 3.09 Mb
pdf