Distillation of meta-chloronitrobenzene in the presence of a dis

Details Distillation of meta-chloronitrobenzene in the presence of a dis Distillation of meta-chloronitrobenzene in the presence of a dis

1977-09-23

1978-07-25

Sebastian, Leland A.

Distillation: processes, separatory

Adding material to distilland except water or steam per se

Organic compound

260646, B01D 334, B01D 336

Patent

active

041027531

ABSTRACT:
This invention relates to the azeotropic distillation of a mixture of meta-chloronitrobenzene isomers employing a lower alkylene glycol, lower oxyalkylene glycol or glycerol as the entrainer or azeotrope former. The invention has several distinct advantages, not the least of which that significantly lower still bottom temperatures can be employed, thus reducing the problems associated with the decomposition and potential explosive decomposition of nitroaromatic compounds. In addition improvements in the relative volatility of meta-chloronitrobenzene, as compared to its isomers have been accomplished.

REFERENCES:
patent: 3368365 (1968-02-01), Dunn

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