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2 219 542

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IPC

(21) (22)

Application

2002132170/04, 2002-11-28

(24)

Start date

2002-11-28

(22)

Actual filing date

2002-11-28

(45)

Published

2003-12-20

(72)

Inventor

Kalinkina S.P.Sukhanov P.T.Korenman Ja.I.

(73)

Holder

Gosudarstvennoe Obrazovatel'Noe Uchrezhdenie Voronezhskaja Gosudarstvennaja Tekhnologicheskaja Akademija

METHOD OF CONCENTRATING PHENOL FROM AQUEOUS SOLUTIONS Russian patent published in 2003 - IPC

Abstract RU 2219542 C1

FIELD: analytical methods. SUBSTANCE: invention deals with concentrating phenol in analytical control of natural, drinking, and purified waste waters. Concentration is carried out by extraction by tributyl phosphate, which is preliminarily applied on foamed polyurethane in amount 50-75% of the weight of foamed polyurethane. Sample is extracted on vibromixer. Factor of concentration is 250-270. EFFECT: increased factor of concentration. 2 tbl, 10 ex

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RU 2 219 542 C1

Authors

Kalinkina S.P.

Sukhanov P.T.

Korenman Ja.I.

Dates

2003-12-20—Published

2002-11-28—Filed