【摘要】 本文化选了蔗渣碱木质素碱性氧化制备紫丁香醛、香兰素等木质素氧化产物的催化剂和最佳工艺条件。在选定的最适工艺条件下，蔗渣木质素三种主要氧化产物紫丁香醛、香兰素和对羟基本甲醛的氧化转化率为19．39％，其中紫丁香醛和香兰素为17．19％，表明选用蔗渣碱木质素为原料，应用本文所提供的工艺以生产紫丁香醛和香兰素是可行的。更多还原

【Abstract】 The catalyst and optimum condition for Prepeing syringaldehyde(S), vanillin(V) and p - hydroxybenzaldehyde (Ph) etc by alkaline oxidation of begusse alkali - lignin were selected.Ander the optimum condition, the highest yield of three major oxidation Products-S, V and Ph from bagasse alkali-lignin reached 19. 39% (based on the weigh of lignin), and the yield of (S＋V) was 17. 19%. It appeared that bagasse alkali-lignin could serve as a good raw material for Producing S and V, and the process recommended in this peper was feasible.更多还原