| abstract |
The invention discloses the refinement method of high-purity cinnamomum camphora β type terpinols, comprise the following steps：（1）Pretreatment of raw material；（2）Surname extraction；（3）Distillation；（4）Purification.The present invention extracts cinnamomum camphora essential oil using soxhlet extraction, and extraction efficiency is high；Raw material air-dry to moisture be 10 15% after crush, the oil yield of cinnamomum camphora essential oil can be improved；Boiling point γ and δ type terpinols high are removed with the mode of distillation, α type terpinols are removed with the mode being evaporated under reduced pressure, employed three step method of purifications and cinnamomum camphora essential oil is purified, can obtain β type terpinol of the purity more than 99.9%. |