FIELD: chemistry.
SUBSTANCE: composition comprises lignin and, at least, one of less than about 150 mg of sulfur per kg of the said lignin; or less than about 525 mg of iron per kg of the said lignin; total less than about 2000 mg of elements per kg of the said lignin. These elements are Al, As, B, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Mo, Na, Ni, P, Pb, S, Sb, Se, Si, Sn, Sr, Ti, Tl, V and Zn.
EFFECT: invention allows to obtain a lignin composition having low impurity content.
18 cl, 4 tbl, 4 ex
| Title | Year | Author | Number |
|---|---|---|---|
| PRODUCING LIGNIN FROM LIGNOCELLULOSE BIOMASS | 2012 |
|
RU2602068C2 |
| PRODUCING LIGNIN FROM LIGNOCELLULOSE BIOMASS | 2012 |
|
RU2508301C1 |
| PRODUCTION OF FERMENTATION SUGARS AND LIGNIN FROM BIOMASS WITH APPLICATION OF SUPERCRITICAL FLUIDS | 2011 |
|
RU2556496C2 |
| PRODUCTION OF FERMENTABLE SUGARS AND LIGNIN FROM BIOMASS USING SUPERCRITICAL FLUIDS | 2011 |
|
RU2597588C2 |
| MULTISTAGE CELLULOSE HYDROLYSIS AND QUENCH WITH OR WITHOUT ACID | 2012 |
|
RU2608999C2 |
| ENHANCED SOLUBLE C5-SACCHARIDE YIELDS | 2012 |
|
RU2609000C2 |
| MODIFIED POLYPHENOL BINDER COMPOSITIONS AND METHODS FOR MAKING AND USING SAME | 2013 |
|
RU2650129C2 |
| BIOMASS LIQUEFACTION AT LOW pH | 2012 |
|
RU2617758C2 |
| PROCESSING OF ORGANIC MATERIAL | 2011 |
|
RU2603965C2 |
| METHOD OF PRODUCING BIO-OIL | 2009 |
|
RU2501840C2 |
