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Eucalyptus oil production method

A production method and technology of eucalyptus oil, applied in the field of eucalyptus oil production, can solve problems such as poor separation effect and low yield, and achieve the effects of ensuring polymerization, reducing material leakage and improving separation capacity

Inactive Publication Date: 2019-01-18
TECK SOON HONGZHUHAIFLAVOURS & FRAGRANCES LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many separation methods of eucalyptus oil components, such as supercritical extraction method, rectification method, etc., but there are generally disadvantages of poor separation effect and low yield. Generally, the content of 1,8-cineole is below 80%.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A method for producing eucalyptus oil, comprising the following steps:

[0032] (1) Turn on the vacuum pump, adjust the vacuum degree to be-0.6MPa, inhale 200L of eucalyptus blue crude oil containing 60% 1,8-cineole with vacuum in the rectification tower still, put into zeolite;

[0033] (2) Open the tower top condensing device, and make the vacuum degree of the rectification system meet the process requirements and be stable;

[0034] (3) Open the main steam valve and the tower steam valve, turn on the heating power supply, heat the tower kettle to 60°C, adjust to full reflux, and perform full reflux operation for 60 minutes;

[0035] (4) Carry out total reflux for 60 minutes to moisten the packing in the tower and achieve gas-liquid balance inside the system. When the gas-liquid balance is reached inside the system, open the reflux ratio regulator, set the reflux ratio to 10:1, and start collecting the following α-pinene, β-pinene, limonene, γ-terpinene-based light c...

Embodiment 2

[0038] A method for producing eucalyptus oil, comprising the following steps:

[0039] (1) Turn on the vacuum pump, adjust the vacuum degree to be-0.4MPa, inhale 200L of Eucalyptus eucalyptus crude oil containing 63% 1,8-cineole with vacuum in the rectification column kettle, and put into zeolite;

[0040] (2) Open the tower top condensing device, and make the vacuum degree of the rectification system meet the process requirements and be stable;

[0041] (3) Open the main steam valve and the tower steam valve, turn on the heating power supply, heat the tower kettle to 60°C, adjust to full reflux, and perform full reflux operation for 70 minutes;

[0042] (4) After performing total reflux for 70 minutes, make the packing in the tower moist and make the inside of the system reach gas-liquid equilibrium. When the inside of the system reaches gas-liquid equilibrium, open the reflux ratio regulator, set the reflux ratio to 9:1, and start collecting For light components mainly comp...

Embodiment 3

[0045] A method for producing eucalyptus oil, comprising the following steps:

[0046] (1) Turn on the vacuum pump, adjust the vacuum degree to be-0.2MPa, inhale 200L of eucalyptus blue crude oil containing 65% 1,8-cineole with a vacuum in the rectification column kettle, and put into zeolite;

[0047] (2) Open the tower top condensing device to make the vacuum degree of the rectification system meet the process requirements and be stable;

[0048] (3) Open the main steam valve and the tower steam valve, turn on the heating power supply, heat the tower kettle to 60°C, adjust to full reflux, and perform full reflux operation for 50 minutes;

[0049] (4) Carry out total reflux for 50 minutes to moisten the packing in the tower and make the inside of the system reach the gas-liquid balance. When the inside of the system reaches the gas-liquid balance, open the reflux ratio regulator, set the reflux ratio to 8:1, and start collecting the following α-pinene, β-pinene, limonene, γ-te...

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PUM

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Abstract

The invention relates to an eucalyptus oil production method which comprises the following steps: (1) starting a vacuum pump to suck raw materials containing cineole into a rectifying tower kettle invacuum; (2) starting an overhead condensing device; (3) turning on a general steam valve and a tower steam valve, turning on a heating power supply to heat the tower kettle, and adjusting the kettle to total reflux for total reflux operation; (4) adjusting the reflux ratio again, carrying out rectification to collect light components which are primarily alpha-pinene, beta-pinene, limonene, gamma-terpinene and p-cymene; and (5) heating the tower kettle, and adjusting the reflux ratio again to collect 1,8-eucalyptol to obtain the eucalyptus oil. By adopting a reduced pressure intermittent precise rectification method, low-boiling-point components and high-boiling-point components are removed by means of difference of volatility of the components, so that essence oil containing over 80% of 1,8-eucalyptol is obtained. For substances which are great in toxicity, the material leakage can be reduced by means of reduced pressure intermittent rectification, so that the environmental pollution is reduced.

Description

technical field [0001] The invention relates to the field of eucalyptus oil production, in particular to a production method of eucalyptus oil. Background technique [0002] Eucalyptus oil is an aromatic essential oil secreted by eucalyptus leaf gland cells. It is one of the top ten essential oils in the world. It has a unique aroma and various biological activities. It is widely used in daily chemical, food, medicine and other fields. The main component of eucalyptus oil is 1,8-cineole. 1,8-Cineole has a camphor-like aroma. It can be used not only in the preparation of edible and daily flavors, but also as the main medicinal ingredient in medicine. It can play the role of antibacterial, anti-inflammatory and insecticidal. Recent studies have shown that 1 , 8-cineole has a good effect on inhibiting the growth of white blood cells, which endows it with greater application value and development space. [0003] There are many impurities in crude eucalyptus oil, mainly α-pinen...

Claims

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Application Information

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IPC IPC(8): C11B9/02
CPCC11B9/022C11B9/027
Inventor 谭时成肖为国李福祖林何祥
Owner TECK SOON HONGZHUHAIFLAVOURS & FRAGRANCES LTD
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