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2 439 558

(13)

(51)

IPC

G01N33/18(2006-01-01)

C07C39/00(2006-01-01)

(21) (22)

Application

2010122994/15, 2010-06-04

(24)

Start date

2010-06-04

(22)

Actual filing date

2010-06-04

(45)

Published

2012-01-10

(72)

Inventor

Kalinkina Svetlana PavlovnaSukhanov Pavel TikhonovichDushkina Evgenija Olegovna

(73)

Holder

Gosudarstvennoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Voronezhskaja Gosudarstvennaja Tekhnologicheskaja Akademija Vpo Vgta)

METHOD OF CONCENTRATING SALICYLIC ACID Russian patent published in 2012 - IPC G01N33/18 C07C39/00

Abstract RU 2439558 C1

FIELD: chemistry.

SUBSTANCE: invention relates to a method of concentrating salicylic acid from aqueous solution, involving extraction with trioctylamine oxide solution in hexane, deposited on foamed polyurethane tablets in amount of 75-80% of the weight of foamed polyurethane.

EFFECT: invention increases concentration coefficient of salicylic acid.

2 tbl, 4 ex

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RU 2 439 558 C1

Authors

Kalinkina Svetlana Pavlovna

Sukhanov Pavel Tikhonovich

Dushkina Evgenija Olegovna

Dates

2012-01-10—Published

2010-06-04—Filed