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2 479 570

(13)

(51)

IPC

C07C211/14(2006-01-01)

C07C209/08(2006-01-01)

(21) (22)

Application

2012109947/04, 2012-03-14

(24)

Start date

2012-03-14

(22)

Actual filing date

2012-03-14

(45)

Published

2013-04-20

(72)

Inventor

Zagidullin Rais NurievichKhusnutdinov Rail' Al'TafovichZagidullina Saira KarimovnaZagidullina Raushan Raisovna

(73)

Holder

Federal'Noe Gosudarstvennoe Bjudzhetnoe Uchrezhdenie Nauki Institut Organicheskoj Khimii Ufimskogo Nauchnogo Tsentra Rossijskoj Akademii Nauk

METHOD OF PRODUCING DIETHYLENETRIAMINE Russian patent published in 2013 - IPC C07C211/14 C07C209/08

Abstract RU 2479570 C1

FIELD: chemistry.

SUBSTANCE: reaction mixture of aqueous solutions of ammonia and ethylenediamine is heated to 90-104°C while stirring; under said conditions, dichloroethane is added with molar ratio dichloroethane:ammonia:ethylenediamine=1:1.5-2.5:0.3-0.7 for 1-2 hours; while stirring, the reaction mixture is then held at 110-130°C and pressure 0.6-2.5 MPa for 1.5-2 hours.

EFFECT: method increases selectivity of the process and enables to obtain a product with high output.

3 cl, 8 ex

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RU 2 479 570 C1

Authors

Zagidullin Rais Nurievich

Khusnutdinov Rail' Al'Tafovich

Zagidullina Saira Karimovna

Zagidullina Raushan Raisovna

Dates

2013-04-20—Published

2012-03-14—Filed