Method for improving yield of 5-hydroxymethylfurfural by using ultrahigh-pressure homogeneous formylated cellulose

The invention discloses a method for improving the yield of 5-hydroxymethylfurfural by using ultrahigh-pressure homogeneous formylated cellulose. The method comprises the following steps: mixing cellulose and formic acid, carrying out homogenization treatment for 5-25 times under the pressure of 600...

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Bibliographic Details
Main Authors ZHENG YANZHEN, CHAI YU, TIAN XINYU, ZHENG XIAOPING, ZHANG YUCANG, DU YAPENG
Format Patent
LanguageChinese
English
Published 18.06.2024
Subjects
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Summary:The invention discloses a method for improving the yield of 5-hydroxymethylfurfural by using ultrahigh-pressure homogeneous formylated cellulose. The method comprises the following steps: mixing cellulose and formic acid, carrying out homogenization treatment for 5-25 times under the pressure of 600-1400 bar, carrying out solid-liquid separation to extract precipitates, cleaning to remove byproducts, and drying; uniformly mixing 5-20 parts by weight of treated cellulose, 0-1000 parts by weight of DMSO (dimethylsulfoxide), 0-1000 parts by weight of deionized water, 25-125 parts by weight of metal ion liquid and 0-80 parts by weight of acid, and reacting for 10-120 minutes at the temperature of 150-190 DEG C; and carrying out solid-liquid separation to obtain a supernatant containing the 5-hydroxymethylfurfural. According to the method, formyl cellulose is prepared by carrying out ultrahigh pressure homogenization pretreatment on a mixture of cellulose and formic acid, and then the formyl cellulose is catalytic
Bibliography:Application Number: CN202410321499