Fractionation

dufton-fractionationDufton columns

These columns have an accurately fitted Dufton glass spiral which can be removed for cleaning purposes etc. This type of column has proved exceedingly successful in gas analysis.

Part Number

Socket size

Cone size

Approx. effective length mm

Approx. Overall height mm

FC1/12

19/26

19/26

150

270

FC1/22

19/26

19/26

300

425

FC2/13

24/29

24/29

150

290

FC2/23

24/29

24/29

300

435

vigreux-fractionationVigreux columns

For ease of operation, relative efficiency and throughput, the Vigreux is probably the most practical and commonly used fractionating column. The shape of the indentations, which project towards the centre of the column, ensures intimate contact between the vapour and the liquid adhering to and running from them and has exceptional efficiency for such a simple unit.

Part Number

Socket size

Cone size

Approx. effective length mm

Sets of points

FC3/13

24/29

24/29

360

7

FC3/23

24/29

24/29

600

12

FC314

29/32

29/3

360

7

plain-fractionationPlain columns

Designed for use with the various types of column packing which are available

Part Number

Socket size

Cone size

Approx. effective length mm

Approx. Overall height mm

FC7/23

24/29

24/29

250

365

FC7/43

24/29

24/29

500

615

raschig-fractionationRaschig ring packing for plain columns

Raschig rings are short lengths of glass tubing, usually having the same length as the diameter.

Part Number

Approx diameter mm

Approx length mm

Raschig rings
FC8/06

6

6

FC8/09

9

9

Note: The above column packings are supplied in minimum quantities of 1 litre.

packing-fractionationPacking support

These packing supports will hold the smallest column packing normally used.

Part Number

To fit socket size

Diameter mm

EX13/12

19/26

16

EX13/23

24/29

21

EX13/25

34/35

29

EX13/26

40/38

35

liquid-dividing-fractionationLiquid dividing fractional distillation head

A sluice type reflux ratio head combined with a jacketed coil condenser having an approximate surface area of 4.0 x 10–2m2. A run-off lip at the bottom of the condenser directs condensed vapour to a weir from which it is either returned to the column or collected. The proportion of liquid returning to the column is adjusted using a GP Rotaflo stopcock. The head is fitted with a pressure equalising tube with vacuum connection, making it an ideal unit for reduced pressure distillations. A size 13 screw-cap is also provided for the insertion of a thermometer (not included). Supplied with screwthread outlets and plastic screwthread connectors

Part Number

Description

Cone size to fit column

Cone size to fit receiver

SH30/42/SC

Fractional distillation head

29/32

19/26

 

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