多聚磷酸催化罗汉柏木烯异构化反应工艺

Isomerization Technology of Thujopsene with Polyphosphoric Acid Catalyst

以柏木油为原料,对柏木油中罗汉柏木烯异构化生成Olefin B的催化剂种类及影响因素进行了对比研究。结果表明,以多聚磷酸为催化剂,质量比为柏木油∶冰醋酸∶多聚磷酸=45∶18∶8,反应温度为50℃,反应时间为3h,Olefin B含量可达10.3%,产率25.8%。

The research was conducted to study the types of catalysts and influencing factors in the isomerization of thujopsene with cedar oil as raw material.When the mass proportion of cedar oil,acetic acid and polyphosphoric acid was 45∶18∶8,the reaction temperature was 50℃,and the time of reaction was 3h, the yield of Olefin B was 25% with a content of 10.3%.