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(19)

RU

(11)

2 573 564

(13)

C2

(51)

IPC

C07C51/255(2006-01-01)

C07C63/26(2006-01-01)

C07C51/265(2006-01-01)

(21) (22)

Application

2014112927/04, 2012-10-18

(24)

Start date

2012-10-18

(22)

Actual filing date

2012-10-18

(45)

Published

2016-01-20

(72)

Inventor

Bkhattacharija Alakananda

(73)

Holder

Juop Llk

METHOD FOR OBTAINING TEREPHTHALIC ACID Russian patent published in 2016 - IPC C07C51/255 C07C63/26 C07C51/265 

Abstract RU 2573564 C2

FIELD: chemistry.

SUBSTANCE: invention relates to method for obtaining terephthalic acid, which includes obtaining flow of virtually pure p-toluic acid, containing 80 wt % or more of p-toluic acid; contact of flow of virtually pure p-toluic acid, solvent, containing more than 5 wt % of ionic liquid, boron source, catalyst and oxidiser to obtain product, which contains terephthalic acid.

EFFECT: method makes it possible to reduce formation of side product - 4-CBA.

10 cl, 2 dwg, 1 tbl

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RU 2 573 564 C2

Authors

Bkhattacharija Alakananda

Dates

2016-01-20—Published

2012-10-18—Filed

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