FIELD: chemistry.
SUBSTANCE: method consists in oxidizing lignin-containing wood raw materials with oxygen in an alkaline medium at elevated temperature and pressure in the presence of an organic additive. Herewith sodium salt of copper tetrasulfophthalocyanine is used as an additive in the amount of 0.1-0.4 g/l of the reaction mass.
EFFECT: increasing the yield of the target product, shortening the duration of the process.
4 ex
Title | Year | Author | Number |
---|---|---|---|
METHOD OF VANILLIN MANUFACTURING | 2013 |
|
RU2519550C1 |
METHOD OF WOOD CHEMICAL PROCESSING | 2017 |
|
RU2671161C1 |
METHOD OF PROCESSING SMALL-LEAVED WOOD | 2000 |
|
RU2178405C1 |
CHEMICAL WOOD PROCESSING METHOD | 1999 |
|
RU2158192C1 |
OXIDIZING AGENT FOR LIGNOSULPHONATES TO PRODUCE VANILLIN | 1996 |
|
RU2117655C1 |
METHOD OF SYNTHESIS OF AROMATIC ALDEHYDES | 2000 |
|
RU2165920C1 |
METHOD OF WOOD PROCESSING INTO PRODUCTS OF FINE ORGANIC SYNTHESIS | 1997 |
|
RU2119427C1 |
METHOD OF REPROCESSING SPECIES OF PAVIFOLIATE WOOD IN VALUABLE ORGANIC PRODUCTS | 2002 |
|
RU2219048C1 |
METHOD OF PREPARING VANILLIN | 1996 |
|
RU2117654C1 |
METHOD OF SEPARATING VANILLIN FROM LIGNIN OXIDATION PRODUCTS | 2012 |
|
RU2479568C1 |
Authors
Dates
2017-09-25—Published
2016-12-01—Filed