摘要
用亚硫酸氢纳溶液萃取，真空蒸馏，醛氨络合，重结晶和升华等方法，分离和提纯蔗渣碱木质素碱性氧化产物紫丁香醛和香兰素。精制紫丁香醛和香兰素的纯度为99．4％和980％，其提纯得率分别为62．4％和63．3％。
Syringaldehyde(S) and vanillin(V) could be sepeated from oxidized mixture of begassealkali-lignin by sodium bisulfite solution extraction distiilation, selective precipitation of sy-ringaldehyde-ammonia complex from aqueous mathanol, recrystallization, sublimation etc. Thepurity of purified S and V was 99. 4% and 98. 0%, and the yields were 62. 4% and 63. 3%respectively.
出处
《纤维素科学与技术》
CAS
CSCD
1994年第1期62-67,共6页
Journal of Cellulose Science and Technology
基金
轻工业部科技发展基金
关键词
蔗渣
碱木质素
紫丁香醛
香兰素
bagasse alkali-lignin
oxidation product
separation
syringaldehyde
vanillin
