固体超强酸MoO_3/ZrO_2催化松节油合成松油醇的研究

STUDY ON SYNTHSIS OF TERPINEOL CATALYZED BY MoO_3/ZrO_2 SOLID SUPERACID

用固体超强酸MoO3 /ZrO2 催化松节油水合反应 ,考察了催化剂的催化性能与其酸强度的关系 ,研究了合成α -松油醇的最佳工艺条件。实验结果表明 ,催化剂的活性及选择性与其酸强度成正比 ;在反应温度80℃ ,催化剂用量为松节油质量的 8% ,反应时间 8h ,F2 为助剂 ,松节油∶溶剂∶助剂∶水为 1∶1∶1∶2 (质量比 )时 ,α -蒎烯的转化率为 85 % ,生成α -松油醇的选择性为 6 8.1%。

Relationship between the catalytic activity and acid strength, and optimum condition for sythesis of terpineol catalyzed by MoO_3/ZrO_2 solid superacid were studied. Results showed that as the acid strength (increased,) the catalytic activity and selectivity of MoO_3/ZrO_2 also increased. MoO_3/ZrO_2 (B) solid superacid was used to catalyze hydration of α-pinene at 80 ℃, mass part of catalyst 8 %, reaction time 8 h, α-pinene∶ solvent∶assistant∶water 1∶1∶1∶2 (mass part) to give α-pinene conversion at 85 %, and selectivity of (α-terpineol) at 68.1 %。