CAJ | 학술논문

引入镍离子制备出新型固体超强酸Ni/SO42-SnO2,以该固体酸催化α-蒎烯水合反应制备α-松油醇,考察影响水合反应的因素,得到水合反应最适宜的条件为:n(α-蒎烯):n(-氯乙酸):n(H2O)=1:1:2,反应温度70℃,反应时间10 h,催化荆用量为α-蒎烯质量的6%.在该反应条件下,α-蒎烯转化率为100%,α-松油醇选择性为73.3%;与未添加Ni的固体超强酸Ni/SO42-SnO2相比表明,Ni的引入能明显提高催化剂在水合反应中的活性和选择性.
인입얼리자제비출신형고체초강산Ni/SO42-SnO2,이해고체산최화α-파희수합반응제비α-송유순,고찰영향수합반응적인소,득도수합반응최괄의적조건위:n(α-파희):n(-록을산):n(H2O)=1:1:2,반응온도70℃,반응시간10 h,최화형용량위α-파희질량적6%.재해반응조건하,α-파희전화솔위100%,α-송유순선택성위73.3%;여미첨가Ni적고체초강산Ni/SO42-SnO2상비표명,Ni적인입능명현제고최화제재수합반응중적활성화선택성.
The a-terpineol was synthesized by hydration reaction of α-pinene, catalyzed by solid superacid of nickel modified Ni/SO42-SnO2The influence factors of the hydration were investigated. The optimum reaction conditions were that the molar ratio of α-pinene, chloroacetic acid to H2O was 1 , 1 :2, the optimum temperature was 70 ℃, the reaction time was 10 h, and the mass fraction of catalyst was 6% (relative to the weight of a-pinene). Under these conditions, the conversion of α-pinene was 100%, and the selectivity to a-terpineol was 73. 3%. The catalyst showed high catalytic activity and selectivity. The results showed that it could significantly increase the conversion and selectivity of a-pinene by adding nickel to the catalyst SO42-/SnO2.