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High-efficiency laboratory fractionation. V. an automatic laboratory still

✍ Scribed by Dixon, O. C. ;Rosnebeck, H. R.

Publisher
Wiley (John Wiley & Sons)
Year
1950
Weight
318 KB
Volume
69
Category
Article
ISSN
0368-4075

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✦ Synopsis

Abstract

It is important that accurate control of operating variables should be maintained throughout a long batch fractionation. This can best be achieved in many distillations by automatic control. In the laboratory still and acccssorics hcrc described, automatic control is provided for the maintcnancc of adiabatic cons in the fractionating column, the adjustment of reflux ratiofto give optimun: fractionation cfficicncy )and the :hourly) changing of rcccivcrs in which distillate is collected! All :hourly)thcsc operations are controllcd by a modified Multclec.' Tempcnture Recorder. This instrument also provides a rccord of the important temperatures and opcntions throughout the distillaiion. An cxamplc is givcn of the use of this still in the fnctionation of a commcrcial iso‐octanc.

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