FIELD: production of sugar.
SUBSTANCE: invention relates to sugar purification processes. Described is a method of generating a stream of refined sugars which contain xylose from a hydrolysis solution of biomass, involving: (i) contacting a hydrolysis solution of biomass, which contains a plurality of mixed sugars containing xylose, acid and impurities, with a solvent with phase separation during heating, such as a glycol-based solvent, to form an extraction mixture; and (ii) separating said first stream comprising a solvent with phase separation upon heating, acid and impurities and a second stream of refined sugar which contains xylose. Described also is an extraction mixture for extracting sugars.
EFFECT: technical result is improvement of quality of sugar purification and reduction of process stages.
21 cl, 13 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHODS OF PROCESSING LIGNOCELLULOSIC MATERIALS | 2013 |
|
RU2634700C2 |
| HYDROLYSIS AND FRACTIONING OF LIGNOCELLULOSE BIOMASS | 1997 |
|
RU2194078C2 |
| CLOSED-LOOP PRODUCTION OF FURFURAL FROM BIOMASS | 2015 |
|
RU2713659C2 |
| LIGNIN-BASED SOLVENTS AND METHODS FOR PRODUCTION THEREOF | 2017 |
|
RU2740758C2 |
| METHOD FOR OBTAINING ALCOHOL IN BIOREFINING CONTEXT | 2008 |
|
RU2508403C2 |
| IMPROVED METHOD OF PRODUCING CELLULASE AND/OR HEMICELLULASE ENZYMES | 2011 |
|
RU2565560C2 |
| METHOD FOR PRODUCING FURFURAL FROM BIOMASS | 2015 |
|
RU2713660C2 |
| METHOD FOR PRODUCTION OF SUGARS OF BIOMASS OBTAINED FROM GUAYULE PLANTS | 2018 |
|
RU2772346C2 |
| METHODS FOR FORMATION OF MULTIPLE VALUABLE STREAMS FROM BIOMASS SOURCES | 2017 |
|
RU2710554C1 |
| EFFICIENT LIGNOCELLULOSE HYDROLYSIS WITH INTEGRATED ENZYME PRODUCTION | 2012 |
|
RU2550265C2 |
