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(19)

(11)

2 405 877

(13)

(51)

IPC

D21C3/04(2006-01-01)

G01N33/46(2006-01-01)

G01N9/36(2006-01-01)

C07G1/00(2006-01-01)

(21) (22)

Application

2010107400/12, 2010-02-27

(24)

Start date

2010-02-27

(22)

Actual filing date

2010-02-27

(45)

Published

2010-12-10

(72)

Inventor

Khabarov Jurij GermanovichKamakina Natal'Ja DmitrievnaBrovko Ol'Ga StepanovnaVishnjakova Aleksandra Poliektovna

(73)

Holder

Gosudarstvennoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Gosudarstvennyj Tekhnicheskij Universitet"

METHOD OF DETECTING LIGNIN CELLULOSE INTERMEDIATE PRODUCTS Russian patent published in 2010 - IPC D21C3/04 G01N33/46 G01N9/36 C07G1/00

Abstract RU 2405877 C1

FIELD: chemistry.

SUBSTANCE: detection is carried out by treating the intermediate product with sulphuric acid. The intermediate product is then undergoes successive nitration with concentrated nitric acid, alkalisation and amount of lignin is photometrically determined.

EFFECT: simple and fast process.

2 tbl, 24 ex

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RU 2 405 877 C1

Authors

Khabarov Jurij Germanovich

Kamakina Natal'Ja Dmitrievna

Brovko Ol'Ga Stepanovna

Vishnjakova Aleksandra Poliektovna

Dates

2010-12-10—Published

2010-02-27—Filed