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2 519 550

(13)

(51)

IPC

C07C47/58(2006-01-01)

C07C45/28(2006-01-01)

C07C45/85(2006-01-01)

(21) (22)

Application

2013109671/04, 2013-03-04

(24)

Start date

2013-03-04

(22)

Actual filing date

2013-03-04

(45)

Published

2014-06-10

(72)

Inventor

Taraban'Ko Valerij Evgen'EvichKajgorodov Konstantin LeonidovichChelbina Julija VjacheslavovnaIl'In Aleksandr Anatol'Evich

(73)

Holder

Federal'Noe Gosudarstvennoe Bjudzhetnoe Uchrezhdenie Nauki Institut Khimii I Khimicheskoj Tekhnologii Sibirskogo Otdelenija Rossijskoj Akademii Nauk So Ran)

METHOD OF VANILLIN MANUFACTURING Russian patent published in 2014 - IPC C07C47/58 C07C45/28 C07C45/85

Abstract RU 2519550 C1

FIELD: chemistry.

SUBSTANCE: method consists in air oxygen oxidation of lignin, obtained by fermentative hydrolysis of wood of coniferous species or wood, affected by brown or mottled rot, with content of lignin 40-90 wt % in water-alkali medium at higher temperatures and pressure. The process is carried out in presence of catalysts on the basis of copper hydroxide with continuous supply of alkali solution into reactor for 1-150 minutes.

EFFECT: method makes it possible to reduce alkali consumption counted per a kilo of obtained vanillin, and consumption of fermentative lignin, which reduces amount of organic substance, formed as byproducts, in sewage water and improves ecological compatibility of the process.

10 ex

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RU 2 519 550 C1

Authors

Taraban'Ko Valerij Evgen'Evich

Kajgorodov Konstantin Leonidovich

Chelbina Julija Vjacheslavovna

Il'In Aleksandr Anatol'Evich

Dates

2014-06-10—Published

2013-03-04—Filed