甜菜粕液化降解制备植物基多元醇的研究  

STUDIES ON THE PREPARATION OF PLANT-BASED POLYOL FROM BEET PULP LIQUEFIED DEGRADATION

作　　者：闫晓霖[1] 王克冰[1] 

机构地区：[1]内蒙古农业大学理学院,呼和浩特010018

出　　处：《内蒙古农业大学学报（自然科学版）》2011年第3期309-312,共4页Journal of Inner Mongolia Agricultural University(Natural Science Edition)

基　　金：内蒙古自治区自然科学基金资助项目(2009MS0715);内蒙古自治区高等学校科学研究项目(NJ09048)

摘　　要：本文研究了甜菜粕在固体硅钨酸为催化剂,聚乙二醇400和丙三醇为复合液化剂的体系中催化液化降解制备植物基多元醇的方法,考察了液化反应条件对甜菜粕液化反应及液化产物性质的影响。结果表明,在复合液化剂中PEG400/丙三醇质量比4:1,液固比8:1,液化温度175℃,催化剂用量8%,液化反应时间60min时,甜菜粕的最高液化率可达99.5%。所得液化产物的羟值为52mgKOH/g～82mgKOH/g,为低羟值植物基多元醇。The Catalyzed liquefaction degradation of beet pulp（BP） in the system of solid silicotungstic acid as a catalyst and polyethyleneglycol400（PEG400）/ glycerol（GLY） as complex liquefier had been studied.The conditions of BP liquefied degradation were investigated.The results showed that the optimum liquefaction process conditions were determined as follows：PEG400/glycerol mass ratio 4：1,liquid-to-solid mass ratio 8：1,liquefaction temperature 175℃,catalyst amount 8% and liquefaction reaction time 60 min,liquefaction rate would reach 99.5%%.Hydroxyl value of liquefied product was 52mgKOH/g^82mgKOH/g,which was a low hydroxyl value plant-based polyol.

关 键 词：甜菜粕 硅钨酸 液化反应 降解 多元醇 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]