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High efficiency laboratory fractionation. II. Glass laboratory stills

✍ Scribed by Dixon, O. G.

Publisher
Wiley (John Wiley & Sons)
Year
1949
Weight
295 KB
Volume
68
Category
Article
ISSN
0368-4075

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✦ Synopsis

Abstract

Two glass fractionating columns for precise laboratory work are described. They have boilers of capacity 200 ml. and 1 litre respectively. Both are capable of fractionating material of boiling point up to 300° c. at atmospheric or reduced pressure.

The boiler and column in each case are surrounded by oil jackets which prevent heat losses from the system. Boilers and jackets are electrically heated.

Gauze ring packing, fully described in a previous paper,^1^ is used together with a device which enables the packing to be flooded and it is to these features that the high efficiency of the fractionating columns is ascribed.

In a previous paper^1^ the development and use of gauze ring packing for high efficiency fractionation was described and the importance of proper preflooding was emphasized. This paper describes fractionating apparatus which is easily controlled, in which the operating conditions have been determined, and where gauze ring packing may be used to its full advantage.

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