FIELD: chemical technology.
SUBSTANCE: invention relates to a method for synthesis of lignocarbohydrate ester materials. Method for synthesis of indicated esters involves treatment of the parent material with acylating mixture of acetic anhydride and aliphatic carboxylic acid taken in the amount 0.5-3.0 mole of reagents per 1 mole of hydroxyl groups of material at intensive mechanical milling the reaction mixture, at temperature 25°C for 0.5-3 h in the presence of ammonium sulfate as a catalyst taken in the amount 5-30% of the lignocarbohydrate material mass. Invention provides reducing consumption of reagents by 3-10 times, decreasing the process period up to 0.5-3 h and temperature of the process from 100-130°C to 25°C and lower the price of the process. Invention can be used in manufacturing plastic masses for preparing composition materials with mineral and organic filling agents.
EFFECT: improved method of synthesis.
5 tbl, 23 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF ACETYLATION OF LIGNOHYDROCARBON MATERIALS | 2005 |
|
RU2285698C1 |
| METHOD OF PREPARING ESTERS OF WOOD | 1997 |
|
RU2143436C1 |
| PEAT ESTERIFICATION METHOD | 2010 |
|
RU2451690C1 |
| METHOD FOR PRODUCTION OF CELLULOSE ACETOVALERATES | 1997 |
|
RU2146263C1 |
| PEAT BENZYLATION METHOD | 2019 |
|
RU2707338C2 |
| METHOD OF PRODUCING BOUNDING AGENTS FROM PEAT | 2016 |
|
RU2614671C1 |
| CELLULOSE ESTER PRODUCTION PROCESS | 2000 |
|
RU2186784C2 |
| METHOD FOR PRODUCTION OF NITROGEN-CONTAINING DERIVATIVES OF LIGNO-CARBOHYDRATE MATERIALS | 2000 |
|
RU2185394C2 |
| METHOD FOR SYNTHESIS OF CROSS-LINKED CARBOXYMETHYLATED LIGNIN-CARBOHYDRATE MATERIAL | 2010 |
|
RU2436797C1 |
| METHOD FOR PREPARING NITROGEN-CONTAINING FERTILIZER BASED ON LIGNIN-CONTAINING RAW | 2001 |
|
RU2213718C2 |
