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2 189 964

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IPC

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Application

2001114672/04, 2001-05-28

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Start date

2001-05-28

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Actual filing date

2001-05-28

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Published

2002-09-27

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Inventor

Dzhemilev U.M.Istomin N.N.Kutepov B.I.Grigor'Eva N.G.Bazhenov Ju.P.Pavlov M.L.Patrikeev V.A.Bikbaev R.T.Khizipova A.N.

(73)

Holder

Gu Institut Neftekhimii I Kataliza An Rb I Unts Ran

METHOD OF SYNTHESIS OF UNSATURATED DIMERS OF ALPHA-METHYLSTYRENE Russian patent published in 2002 - IPC

Abstract RU 2189964 C1

FIELD: petroleum chemistry. SUBSTANCE: invention relates to a method of the dimerization of α-methylstyrene that is carried out in the presence of zeolite Y in NaH-form as a catalyst with degree of ionic exchange 60-95% subjected preliminary to thermal treatment at 500-700 C under air atmosphere. The amount of catalyst is 5-20 wt.-%, temperature of reaction is 60-140 C. EFFECT: enhanced selectivity, simplified technology of synthesis of α-methylstyrene. 1 tbl, 10 ex

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RU 2 189 964 C1

Authors

Dzhemilev U.M.

Istomin N.N.

Kutepov B.I.

Grigor'Eva N.G.

Bazhenov Ju.P.

Pavlov M.L.

Patrikeev V.A.

Bikbaev R.T.

Khizipova A.N.

Dates

2002-09-27—Published

2001-05-28—Filed