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(19)

(11)

2 421 441

(13)

(51)

IPC

C07C11/18(2006-01-01)

C07C1/207(2006-01-01)

B01J27/18(2006-01-01)

B01J27/195(2006-01-01)

(21) (22)

Application

2010106497/04, 2010-02-26

(24)

Start date

2010-02-26

(22)

Actual filing date

2010-02-26

(45)

Published

2011-06-20

(72)

Inventor

Ordomskij Vitalij Valer'EvichSushkevich Vitalij LeonidovichIvanova Irina Igorevna

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju

SINGLE-STEP METHOD OF PRODUCING ISOPRENE Russian patent published in 2011 - IPC C07C11/18 C07C1/207 B01J27/18 B01J27/195

Abstract RU 2421441 C1

FIELD: chemistry.

SUBSTANCE: invention relates to a single-step method for gas-phase synthesis of isoprene, involving reaction of formaldehyde with isobutylene, or isobutylene-containing material, or isobutylene derivatives in the presence of a catalyst, characterised by that the reaction is carried out in the presence of a solid-phase catalyst which contains phosphates selected from zirconium, niobium or tantalum phosphates.

EFFECT: invention provides high stability of the catalyst with high output of isoprene.

6 cl, 18 ex, 1 tbl

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RU 2 421 441 C1

Authors

Ordomskij Vitalij Valer'Evich

Sushkevich Vitalij Leonidovich

Ivanova Irina Igorevna

Dates

2011-06-20—Published

2010-02-26—Filed