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2 017 716

(13)

C1

(51)

IPC

(21) (22)

Application

5000800/04, 1991-09-04

(22)

Actual filing date

1991-09-04

(45)

Published

1994-08-15

(72)

Inventor

Pantukh B.I.Rutman G.I.Surkov V.D.

(73)

Holder

Maloe Predprijatie

METHOD OF 2,6-DI-TERT -BUTYLPHENOL ISOLATION FROM PRODUCTS OF ALKYLATION OF PHENOL WITH ISOBUTYLENE Russian patent published in 1994 - IPC

Abstract RU 2017716 C1

FIELD: organic chemistry. SUBSTANCE: isolation of 2,6-di-tert.-butylphenol from products of alkylation of phenol with isobutylene is carried out by rectification under vacuum in the presence of carbon dioxide taken at concentration 0.01-0.10% of 2,6-di-tert.-butyl-phenol mass which is removed from the column. EFFECT: improved method of isolation. 2 cl

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RU 2 017 716 C1

Authors

Pantukh B.I.

Rutman G.I.

Surkov V.D.

Dates

1994-08-15—Published

1991-09-04—Filed

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