从桉叶油副品中间歇精馏纯化α-松油醇
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TQ654

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国家自然科学基金项目(No. 31171755);北京市教委科技发展计划重点&北京市自然科学基金项目(KZ20101001011);北京工商大学研究生科研学术创新基金项目资助。


Purification of α-Terpineol from Byproduct of Eucalyptus Oil by Batch Vacuum Distillation
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    摘要:

    研究了从桉叶油副品—松油醇馏分中纯化α-松油醇的间歇减压精馏工艺。GC-MS分析了原料组成。通过绘制目标组分α-松油醇及γ-松油烯、4-松油醇、trans-松香芹醇三个主要杂质组分的馏出曲线,探讨了水和四种有机溶剂进行塔预处理对分离α-松油醇的影响,并在此基础上优化回流比,确定较佳工艺:以水进行塔预处理,变回流比操作,在回流比为6条件下收集α-松油醇,绝对压力5.0 kPa左右,沸程129~132 oC,纯度> 90%,回收率50.0%。

    Abstract:

    The technology of purifying of α-terpineol by batch vacuum distillation from terpineol fraction, a byproduct of eucalyptus oil, was studied. The material of terpineol fraction was analyzed by GC-MS. Based on effusing curves of the target α-terpineol and those of the main impurities of γ-terpinene, terpinen-4-ol, and trans-pinocarveol by batch vacuum distillation, effects of tower packing pretreated with water and four organic solvents on the separation of α-terpineol were investigated. In addition, reflux ratio for fractioning α-terpineol was optimized. Finally, the optimum conditions found were tower packing pretreated with water, distillation in a varied reflux ratio, and the reflux ratio kept at 6 whenα-terpineol effused, whereby α-terpineol obtained was at 129~132 oC/ 5.0 kPa in purity over 90% and recovery 50%.

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王石,谢建春,靳林溪,孙宝国.从桉叶油副品中间歇精馏纯化α-松油醇[J].精细化工,2012,29(2):

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  • 收稿日期:2011-11-01
  • 最后修改日期:2011-11-29
  • 录用日期:2011-12-07
  • 在线发布日期: 2012-01-09
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