脱铝超稳Y分子筛催化α-蒎烯水合反应研究

STUDY ON HYDRATION OF α-PINENE CATALYZED BY DEALUMINATED USY

研究了脱铝超稳Y分子筛 (DUSY)对α 蒎烯水合反应的催化作用。考察了催化剂硅铝比、溶剂、投料比及催化剂用量等因素的影响规律。结果表明 ,以硅铝比较高的DUSY 5为催化剂 ,醋酸作溶剂 ,于 70℃下反应 7h ,α 蒎烯转化率为 95 .0 4 % ,加成反应总选择性为 6 0 .5 9% ,α 松油醇的选择性达 35 .5 1%

Hydration of α pinene catalyzed by dealuminated ultrastable Y zeolite molecular sieve(DUSY)was studied.Effects of SiO 2/Al 2O 3 ratio,solvent,reactants ratio and amount of catalyst on the hydration were investigated.Results show that with catalyst DUSY 5 of high SiO 2/Al 2O 3 ratio and acetic acid as solvent at 70?℃ for 7?h,conversion of α pinene is 95.04% at total selectivity of hydration 60.59% and α terpineol selectivity 35.51%?