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CN105198689B 一种α-蒎烯选择性加氢制备顺式蒎烷的方法 失效 - 权利终止

一种α-蒎烯选择性加氢制备顺式蒎烷的方法
摘要：
一种α‑蒎烯选择性加氢制备顺式蒎烷的方法，在α‑蒎烯与磁性催化剂质量比为50∶1～2.7，反应温度140～180℃，氢气压力4.0～6.0MPa的条件下反应4.0～6.0h制备顺式蒎烷，反应结束后利用外加磁场分别回收催化剂相和产物相。催化剂相无需后处理，直接循环使用。该工艺条件下，α‑蒎烯的转化率大于99％，顺式蒎烷的选择性大于96％。
摘要（英）：

The invention provides a method for preparing cis-pinane by adopting selective hydrogenation of alpha-pinene. According to the method, alpha-pinene and a magnetic catalyst react in a mass ratio being 50:(1-2.7) for 4.0-6.0 h at the reaction temperature of 140-180 DEG C and under hydrogen pressure of 4.0-6.0 MPa; cis-pinane is prepared, and after reaction, a catalyst phase and a product phase are recovered respectively through an external magnetic field. The catalyst phase does not require aftertreatment and is recycled directly. Under the process conditions, the conversion rate of alpha-pinene is higher than 99%, and the selectivity of cis-pinane is higher than 96%.

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