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2 404 951

(13)

(51)

IPC

C07C17/38(2006-01-01)

C07C17/395(2006-01-01)

C07B63/00(2006-01-01)

C07B63/02(2006-01-01)

C07C25/13(2006-01-01)

(21) (22)

Application

2009109853/04, 2009-03-18

(24)

Start date

2009-03-18

(22)

Actual filing date

2009-03-18

(45)

Published

2010-11-27

(72)

Inventor

Podsevalov Pavel ViktorovichKochanov Aleksandr SergeevichShvetsov Igor' Nikolaevich

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju Khimicheskaja Kompanija"

METHOD OF PURIFYING PERFLUOROARENES Russian patent published in 2010 - IPC C07C17/38 C07C17/395 C07B63/00 C07B63/02 C07C25/13

Abstract RU 2404951 C1

FIELD: chemistry.

SUBSTANCE: halogen used is bromine or iodine, and sulphuric anhydride is used in form of its solution in sulphuric acid with concentration of 5-60%. The chemical treatment process is carried out at temperature of 20-80°C, preferably at 50-70°C, with weight ratio of the sulphuric anhydride to halogen equal to 1-10:1, preferably 1.5-3:1.

EFFECT: obtaining highly pure product.

3 cl, 4 ex

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RU 2 404 951 C1

Authors

Podsevalov Pavel Viktorovich

Kochanov Aleksandr Sergeevich

Shvetsov Igor' Nikolaevich

Dates

2010-11-27—Published

2009-03-18—Filed