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2 068 837

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C1

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IPC

(21) (22)

Application

95100491/04, 1995-01-11

(22)

Actual filing date

1995-01-11

(45)

Published

1996-11-10

(72)

Inventor

Pantukh B.I.Egoricheva S.A.Logutov I.Ju.Dolidze V.N.Dautov T.G.

(73)

Holder

Sterlitamakskij Neftekhimicheskij Zavod

METHOD OF SYNTHESIS OF 2,6-DI-TERT-BUTYLPHENOL Russian patent published in 1996 - IPC

Abstract RU 2068837 C1

FIELD: chemical technology. SUBSTANCE: method involves alkylation of phenol with technical C4-hydrocarbon fraction containing 0.1-1.0 wt.-% coupled dienes. Catalyst: mixture containing 85-90 wt.-% tetraphenoxyaluminic acid and 10-15 wt.-% its ammonium salt - ammonium tetraphenoxyaluminate. The end product, 2,6-di-tert.-butylphenol, is synthesized after phenol alkylation with lower olefins. EFFECT: improved method of synthesis.

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RU 2 068 837 C1

Authors

Pantukh B.I.

Egoricheva S.A.

Logutov I.Ju.

Dolidze V.N.

Dautov T.G.

Dates

1996-11-10—Published

1995-01-11—Filed

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