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2 407 005

(13)

(51)

IPC

G01N33/18(2006-01-01)

G01N31/00(2006-01-01)

B01D11/04(2006-01-01)

(21) (22)

Application

2009141405/04, 2009-11-09

(24)

Start date

2009-11-09

(22)

Actual filing date

2009-11-09

(45)

Published

2010-12-20

(72)

Inventor

Kharitonova Ljudmila AlekseevnaGuljaeva Anastasija Sergeevna

(73)

Holder

Gosudarstvennoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Gosudarstvennaja Tekhnologicheskaja Akademija"

PROCESS OF CONCENTRATING HYDROQUINONE FROM AQUEOUS SOLUTIONS Russian patent published in 2010 - IPC G01N33/18 G01N31/00 B01D11/04

Abstract RU 2407005 C1

FIELD: chemistry.

SUBSTANCE: method involves extraction-sorption concentration by foamed polyurethane sorbent, modified with tributyl phosphate, where the sorbent used is elastic foamed polyurethane on which a tributyl phosphate modifier is pre-deposited in weight ratio of the elastic foamed polyurethane to tributyl phosphate equal to 1:(1.5-1.9).

EFFECT: high degree of concentration and efficient extraction.

3 ex, 1 tbl

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RU 2 407 005 C1

Authors

Kharitonova Ljudmila Alekseevna

Guljaeva Anastasija Sergeevna

Dates

2010-12-20—Published

2009-11-09—Filed