摘要
以合成的钼钒同多酸Na_(6)[α-Mo_(6)V_(2)O_(26)]·16H_(2)O为催化剂,对甲苯磺酸为酸催化剂,在水相介质和O_(2)气氛中,考察了钼钒同多酸将纤维素选择性转化为甲酸(FA)的催化性能。实验结果表明:合成的钼钒同多酸催化剂表现出较强的氧化性。在纤维素0.2 g,Na_(6)[α-Mo_(6)V_(2)O_(26)]·16H_(2)O 0.1 g,对甲苯磺酸0.15 g,去离子水10 mL,O_(2)压力为1 MPa,温度140℃条件下反应3 h,纤维素转化率为98%,甲酸的产率为47%。此外研究了该催化剂将单糖类(木糖和葡萄糖)转化为甲酸的催化性能,其中以木糖为底物时的甲酸产率最高,达到63%。
Using the synthesized molybdenum-vanadium homopolyacid Na_(6)[α-Mo_(6)V_(2)O_(26)]·16H_(2)O as catalyst and p-toluene sulfonic acid as acid catalyst,the catalytic performance of the molybdenum-vanadium homopolyacid for the selective conversion of cellulose to formic acid(FA)was investigated under aqueous medium and O_(2) atmosphere.The experimental results showed that the synthesized molybdenum-vanadium homopolyacid exhibited strong oxidizing property.Under the conditions of 0.2 g of cellulose,0.1 g of Na_(6)[α-Mo_(6)V_(2)O_(26)]·16H_(2)O,0.15 g of p-toluene sulfonic acid,10 mL of deionized water,O_( 2 )pressure of 1 MPa,and temperature of 140℃were reacted for 3 h,the conversion rate of cellulose reached 98%,and the yield of formic acid was 47%.In addition,catalytic performance of the catalyst for the conversion of monosaccharides(xylose and glucose)into formic acid was studied,and the conversion of xylose to formic acid had the highest yield of 63%.
作者
陈秀强
段喜鑫
时君友
CHEN Xiuqiang;DUAN Xixin;SHI Junyou(Jilin Key Laboratory of Wooden Materials Science and Engineering,Beihua University,Jilin 132013,China)
出处
《林产化学与工业》
CAS
CSCD
北大核心
2022年第2期80-86,共7页
Chemistry and Industry of Forest Products
基金
国家自然科学基金资助项目(31971616)
吉林教育厅产业化研究项目(JJKH20210070KJ)。
关键词
钼钒同多酸
纤维素
对甲苯磺酸
甲酸
molybdenum-vanadium polyoxometalate
cellulose
p-toluene sulfonic acid
formic acid
