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2 327 676

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(51)

IPC

C07C2/12(2006-01-01)

C07C15/50(2006-01-01)

C07C15/52(2006-01-01)

(21) (22)

Application

2006147191/04, 2006-12-20

(24)

Start date

2006-12-20

(22)

Actual filing date

2006-12-20

(45)

Published

2008-06-27

(72)

Inventor

Dzhemilev Usein MemetovichKutepov Boris IvanovichGrigor'Eva Nellja GennadievnaGaljautdinova Regina RimovnaVosmerikov Aleksandr VladimirovichKorobitsyna Ljudmila LeonidovnaVelichkina Ljudmila Mikhajlovna

(73)

Holder

Institut Neftekhimii I Kataliza Ran

METHOD OF OBTAINING LINEAR DIMERS OF α-METHYLSTYRENE Russian patent published in 2008 - IPC C07C2/12 C07C15/50 C07C15/52

Abstract RU 2327676 C1

FIELD: chemistry.

SUBSTANCE: method involves oligomerisation of α-methylstyrene, in the presence of a zeolite catalyst. The catalyst used is a zeolite series of pentasils Fe-ZSM-5 (1.8÷2.2% mass content of Fe³⁺) with molar ratio SiO₂/(Al₂O₃+Ee₂O₃)=60, in H form in percentage mass content of 5÷10% α-methylstyrene. The reaction is carried out in a neutral medium (nitrogen, argon) at 80-120°C.

EFFECT: simplification of the process of obtaining linear dimmers of α-methylstyrene and increased efficiency of the process.

1 tbl, 1 ex

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RU 2 327 676 C1

Authors

Dzhemilev Usein Memetovich

Kutepov Boris Ivanovich

Grigor'Eva Nellja Gennadievna

Galjautdinova Regina Rimovna

Vosmerikov Aleksandr Vladimirovich

Korobitsyna Ljudmila Leonidovna

Velichkina Ljudmila Mikhajlovna

Dates

2008-06-27—Published

2006-12-20—Filed