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2 603 198

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(51)

IPC

C07C11/167(2006-01-01)

C07C1/20(2006-01-01)

C07C7/11(2006-01-01)

(21) (22)

Application

2015133451/04, 2015-08-10

(24)

Start date

2015-08-10

(22)

Actual filing date

2015-08-10

(45)

Published

2016-11-27

(72)

Inventor

Churkin Vladimir NikolaevichKotelnikov Georgij RomanovichBespalov Vladimir PavlovichChurkin Maksim VladimirovichSidnev Vladimir BorisovichBubenkov Vladimir PetrovichShutkin Andrej Sergeevich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Nauchno-Issledovatelskij Institut Nii

METHOD OF PRODUCING BUTADIENE Russian patent published in 2016 - IPC C07C11/167 C07C1/20 C07C7/11

Abstract RU 2603198 C1

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing butadiene by catalytic conversion of ethanol, includes cooling obtained gaseous reaction mass in exhaust-heat boiler by producing steam, further cooling and partial condensation by indirect contact consecutively with cooling water and coolant and compression of uncondensed part. Method is characterised by that before indirect contact with cooling water, it comprises preliminary cooling of gaseous reaction mass to temperature of 70-100 °C by direct contact with a stream in liquid phase and more than 90 wt% consisting of a mixture of water and ethanol, with evaporation from 0.5 up to 30 wt% of said stream.

EFFECT: present method improves cooling efficiency, simplifies processing of condensate.

1 cl, 1 dwg, 5 ex

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RU 2 603 198 C1

Authors

Churkin Vladimir Nikolaevich

Kotelnikov Georgij Romanovich

Bespalov Vladimir Pavlovich

Churkin Maksim Vladimirovich

Sidnev Vladimir Borisovich

Bubenkov Vladimir Petrovich

Shutkin Andrej Sergeevich

Dates

2016-11-27—Published

2015-08-10—Filed