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2 448 941

(13)

(51)

IPC

C07C19/45(2006-01-01)

C07C17/38(2006-01-01)

(21) (22)

Application

2010149193/04, 2010-11-30

(24)

Start date

2010-11-30

(22)

Actual filing date

2010-11-30

(45)

Published

2012-04-27

(72)

Inventor

Popov Jurij Vasil'EvichJurin Vladimir PavlovichKrasil'Nikova Klavdija FedorovnaZotov Jurij L'Vovich

(73)

Holder

Gosudarstvennoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Volgogradskij Gosudarstvennyj Tekhnicheskij Universitet

METHOD OF EXTRACTING 1,2-DICHLOROETHANE Russian patent published in 2012 - IPC C07C19/45 C07C17/38

Abstract RU 2448941 C1

FIELD: chemistry.

SUBSTANCE: invention relates to methods of extracting 1,2-dichloroethane from vinyl chloride production wastes, obtained via 1,2-dichloroethane thermal cracking. 1,2-dichloroethane is extracted from fractionation still residues through distillation in the presence of tert-butylpyrocatechol.

EFFECT: engineering solution enables to optimise technological, economic and environmental parameters of the process of producing vinyl chloride, since it enables to return extracted 1,2-dichloroethane for recycling and reduce the amount of liquid organochloride wastes.

1 cl, 8 ex, 2 tbl

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RU 2 448 941 C1

Authors

Popov Jurij Vasil'Evich

Jurin Vladimir Pavlovich

Krasil'Nikova Klavdija Fedorovna

Zotov Jurij L'Vovich

Dates

2012-04-27—Published

2010-11-30—Filed