PROCESS FOR MANUFACTURE OF ALPHA-IODOPERFLUOROALKANES AND ALPHA, OMEGA-DIIODOPERFLUOROALKANES Russian patent published in 2018 - IPC C07C17/278 C07C17/20 

Abstract RU 2669369 C2

FIELD: chemistry.

SUBSTANCE: invention relates to a process for preparing αiodoperfluoroalkanes and α,ωdiiodoperfluoroalkanes of general formula: (I) A(C2F4)nI, where: A is selected from F, CF3 and I, and n is an integer greater than 1, provided that when A is F, then n is an integer equal to or greater than 1, comprising heating mixture M1 comprising: a compound selected from I2, CF3I, CF3CF2I and C2F4I2; tetrafluoroethylene; and CO2; at a temperature equal to or higher than 130 °C. Mixture comprises a liquid and a gas phase and contains CO2 in an amount of at least 18 % by volume of the entire gas phase.

EFFECT: minimum amount of cy-C4F8, formed during the reaction, high telomere output, in particular those having a low molecular weight, stability and non-explosion hazard of the compound or mixture.

15 cl, 6 tbl, 4 ex

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RU 2 669 369 C2

Authors

Antenucci, Emanuela

Bragante, Letanzio

Galimberti, Marco

Tortelli, Vito

Dates

2018-10-11Published

2015-04-09Filed