CN108395935A - A method of extracting eucalyptus leaf essential oil from eucalyptus leaves - Google Patents
A method of extracting eucalyptus leaf essential oil from eucalyptus leaves Download PDFInfo
- Publication number
- CN108395935A CN108395935A CN201810460070.3A CN201810460070A CN108395935A CN 108395935 A CN108395935 A CN 108395935A CN 201810460070 A CN201810460070 A CN 201810460070A CN 108395935 A CN108395935 A CN 108395935A
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- Prior art keywords
- oil
- eucalyptus
- water
- eucalyptus leaves
- essential oil
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B9/00—Essential oils; Perfumes
- C11B9/02—Recovery or refining of essential oils from raw materials
- C11B9/022—Refining
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B9/00—Essential oils; Perfumes
- C11B9/02—Recovery or refining of essential oils from raw materials
- C11B9/025—Recovery by solvent extraction
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B9/00—Essential oils; Perfumes
- C11B9/02—Recovery or refining of essential oils from raw materials
- C11B9/027—Recovery of volatiles by distillation or stripping
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Fats And Perfumes (AREA)
- Medicines Containing Plant Substances (AREA)
Abstract
The present invention discloses a kind of method for extracting eucalyptus leaf essential oil from eucalyptus leaves, includes the following steps：Pretreatment, raw material eucalyptus leaves are cleaned and are air-dried, be processed into 30 70 mesh size sheets, raw material are packed into material frame, for use；It soaks, the eucalyptus leaves handled well is poured into destilling tower and pure water is added and are impregnated, water level needs to flood raw material completely, and soaking time is 16 20 hours；Eucalyptus leaves are carried out heating boiling, are heated to 80 DEG C and keep constant temperature by heating distillation, at temperature and the physical action of distillation, generate oil water mixture；Oil water mixture is sent to condenser with vapor and is condensed by water-oil separating together, oil water separator by folium eucalypti crude oil and condensed moisture from；Crude oil is refined, takes out folium eucalypti crude oil and appropriate powdery tartaric acid is added, stir 6~10 minutes, place 10~20 hours, clarification is at essential oil after filtering.The oil yield of the invention can be improved 5 6%, and improve 1, the content of 8 cineoles.
Description
Technical field
The method that the present invention relates to a kind of to extract eucalyptus leaf essential oil from eucalyptus leaves belongs to the technology neck of eucalyptus leaf essential oil extraction
Domain.
Background technology
Eucalyptus is also known as fast-growing eucalyptus, is Myrtaceae, arbor is tall and big and straight, and the four seasons are evergreen, main producing region Yangtze river basin area；I
Large area transplants eucalyptus always since the sixties for state, and ecodevelopment is good, becomes abundant forest resources.Eucalyptus is light wood again
The multi-purpose quick growing species of trees, it is good timber materials that eucalyptus is dry, folium eucalypti 1.2-2% containing eucalyptus oil, and main component Cineole contains
Amount about 80%, eucalyptus leaf essential oil have strong refrigerant fragrance, have antipyretic, antibacterial and anti-inflammation functions, can be applied to daily-use chemical industry, life
Object medicine, the fields such as air adjustment, environmental protection；Research application work of the China to eucalyptus at present, in addition to as forest resources
Outside greening environment, mainly eucalyptus is done and is used as timber materials, eucalyptus leaves affect eucalyptus generally as fuel
It develops and uses, waste of resource.
Eucalyptus oil is the volatile oil of eucalyptus leaves oil droplet cell secretion initial tension, contains volatile oil, amaroid, tannin and resin etc.
Multiple components are the limpid liquid with fragranced, can be used for preparing cosmetics, toothpaste, perfumed soap, detergent, oral cleaning
Agent, indoor cleaning agent etc., while being also a kind of medicinal raw material.The method of existing industrial extraction eucalyptus oil mostly uses greatly water steaming
The extracting mode of steam distillation and rectification under vacuum, steam distillation extracting method are to mix eucalyptus leaves with vapor, are steamed using water
Gas at a temperature of less than 100 DEG C, distills the volatile oil of eucalyptus leaves with vapor, then again will by condenser
Vapor therein condenses out, and the process of folium eucalypti crude oil is made.The oil yield of folium eucalypti crude oil is relatively low in the prior art, is carried
The content containing required ingredient 1,8- cineoles is relatively low in the folium eucalypti crude oil taken.
Invention content
In view of the above existing problems in the prior art, the present invention provides a kind of from eucalyptus leaves extracts the side of eucalyptus leaf essential oil
Method can effectively solve the problem that the oil yield of folium eucalypti crude oil in the prior art is relatively low, and required ingredient is contained in the folium eucalypti crude oil extracted
The lower technical barrier of content of 1,8- cineoles.
A method of it extracting eucalyptus leaf essential oil from eucalyptus leaves, includes the following steps：
（1）, pretreatment, raw material eucalyptus leaves are cleaned and are air-dried, 30-70 mesh size sheets are processed into, by raw material loading material frame in,
For use；
（2）, soak, the eucalyptus leaves handled well are poured into destilling tower and pure water is added and are impregnated, water level has needed
Total flooding raw material, soaking time are 16-20 hours；
（3）, heating distillation, eucalyptus leaves are subjected to heating boiling, 80 DEG C is heated to and keeps constant temperature, in the physics of temperature and distillation
Under effect, oil water mixture is generated；
（4）, water-oil separating, oil water mixture is sent to condenser together with vapor and is condensed, oil water separator is by folium eucalypti
Crude oil is with condensed moisture from condensed water, which is returned in destilling tower, to be continued to be distilled together with eucalyptus leaves volatile matter；
（5）, crude oil it is refined, take out folium eucalypti crude oil and appropriate powdery tartaric acid be simultaneously added, stir 6~10 minutes, it is small to place 10~20
When, clarification is at essential oil after filtering.
The step（3）Middle to be handled using destilling tower, the top of the destilling tower is equipped with material outlet, the material
Exit is connected with the condenser for carrying out step (4) processing；The distillation tower bottom sets heater, distills and is set on tower side wall
There is the first water inlet；The exit of the condenser is connected with oil water separator, and the bottom of the oil water separator sets condensation row
Water pipe, the side wall above the oil water separator are equipped with folium eucalypti crude oil outlet；Destilling tower above first water inlet
Side wall is equipped with the second water inlet, and the condensate drainage pipe is connected to the second water inlet and prolongs into destilling tower along the second water inlet
It stretches, rotary nozzle is set on the extended segment of condensate drainage pipe.
Water inlet pipe is set on first water inlet, the condensate drainage pipe connects water inlet pipe.
The distillation tower bottom sets waste residue Butterworth Hatch.
The lower part of the oil water separator is in funnel structure.
In the step (5), the addition of powdery tartaric acid is to be added by the 0.4~0.6% of folium eucalypti oil mass.
Compared with prior art, the eucalyptus leaves pre-processed are carried out boiling, eucalyptus by the present invention in alembic tower together with water
Leaf volatile matter is distilled off to send to condenser together and be condensed with vapor, and oil water separator is by eucalyptus crude oil and condensed water
Separation, condensed water, which is returned in destilling tower, to be continued to be distilled together with eucalyptus leaves volatile matter, realizes the cycle profit of moisture
With can save the use of water resource, realize environmental protection production.The normal-temperature water that condenser can be used 20~25 DEG C is cooled down, and is steamed
Evaporate volatile matter in tower and water vapour it is condensed after, its temperature of the condensed water of formation remains to be maintained at 40~60 DEG C, then through rotation
After nozzle in destilling tower by spraying, the temperature in destilling tower can be improved rapidly, avoided after fresh supplemented water is added after moisture evaporation
Caused by vapo(u)rizing temperature the case where reducing.Due to realizing that one fixed number of extraction is not distilled in the closed cycle of vapor, destilling tower
When the eucalyptus leaf raw material of amount, the moisture used realizes that closed cycle uses, and does not increase other substances, waits in oil water separator
After folium eucalypti crude oil is not further added by, you can stop the use of destilling tower, complete the distilation of eucalyptus leaf raw material, often purify a certain amount of
The oil yield of the more original common steam distillation equipment of eucalyptus leaf raw material 5-6% can be improved, simultaneously, moreover it is possible to improve folium eucalypti crude oil
The content of middle 1,8- cineoles.
Description of the drawings
Fig. 1 is the flow diagram of the present invention；
Fig. 2 is destilling tower and condenser relevant device overall structure diagram in the present invention；
Wherein, 1, destilling tower；2, condenser；3, material outlet；4, heater；5, the first water inlet；6, oil water separator；7, cold
Solidifying drainpipe；8, folium eucalypti crude oil outlet；9, the second water inlet；10, water inlet pipe；11, waste residue Butterworth Hatch.
Specific implementation mode
The present invention is described further below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of method for extracting eucalyptus leaf essential oil from eucalyptus leaves, includes the following steps：
（1）, pretreatment, raw material eucalyptus leaves are cleaned and are air-dried, 30-70 mesh size sheets are processed into, by raw material loading material frame in,
For use；
（2）, soak, the eucalyptus leaves handled well are poured into destilling tower and pure water is added and are impregnated, water level has needed
Total flooding raw material, soaking time are 16-20 hours；
（3）, heating distillation, eucalyptus leaves are subjected to heating boiling, 80 DEG C is heated to and keeps constant temperature, in the physics of temperature and distillation
Under effect, oil water mixture is generated；
（4）, water-oil separating, oil water mixture is sent to condenser together with vapor and is condensed, oil water separator is by folium eucalypti
Crude oil is with condensed moisture from condensed water, which is returned in destilling tower, to be continued to be distilled together with eucalyptus leaves volatile matter；
（5）, crude oil it is refined, take out folium eucalypti crude oil and appropriate powdery tartaric acid be simultaneously added, stir 6~10 minutes, it is small to place 10~20
When, clarification is at essential oil after filtering.
Further, as shown in Fig. 2, the step（3）It is middle to be handled using destilling tower 1, the top of the destilling tower 1
Equipped with material outlet 3, the condenser 2 for carrying out step (4) processing is connected at the material outlet 3；1 bottom of the destilling tower
Portion sets heater 4, and 1 side wall of destilling tower is equipped with the first water inlet 5；The exit of the condenser 2 is connected with oil water separator
6, the bottom of the oil water separator 6 sets condensate drainage pipe 7, and the side wall of the top of the oil water separator 6 is thick equipped with folium eucalypti
Oil export pipe 8；1 side wall of destilling tower of first water inlet, 5 top is equipped with the second water inlet 9, and the condensate drainage pipe 7 connects
Logical second water inlet 9 simultaneously extends along the second water inlet 9 into destilling tower 1, and rotary nozzle is set on the extended segment of condensate drainage pipe 7.
Further, water inlet pipe 10 is set on first water inlet 5, the condensate drainage pipe 7 connects water inlet pipe 10.
Further, 1 bottom of the destilling tower sets waste residue Butterworth Hatch 11.
Further, the lower part of the oil water separator 6 is in funnel structure.
Further, in the step (5), the addition of powdery tartaric acid is to add by the 0.4~0.6% of folium eucalypti oil mass
Enter.
When work, raw material eucalyptus leaves are cleaned and air-dried, be processed into 30-70 mesh size sheets, raw material is packed into material frame, then
The eucalyptus leaves handled well are poured into destilling tower and pure water is added and are impregnated, water level needs to flood raw material completely, when immersion
Between be 16-20 hour, i.e. set water inlet pipe on the first water inlet, Open valve V1, valve V2 and pump R1, pass through the first water inlet
The water filling into destilling tower 1, water injection rate control is completely sunk in the water in folium eucalypti slag to be advisable, and valve V1, valve are closed after the completion of water filling
Door V2 and pump R1；Heater heats destilling tower, and controls volatile matter of the temperature in 80 DEG C or so, folium eucalypti slag
It is distilled off at high temperature with vapor, is sent to condenser and condensed by the material outlet at the top of destilling tower.Cooling medium
For normal-temperature water, sent to oil water separator by condensate outlet after high temperature volatiles and vapor are condensed, hardly due to volatile matter
It is dissolved in water, therefore, the folium eucalypti crude oil and condensed water persistently condensed out is constantly detached in oil water separator, is condensed out
Condensed water level is in the funnel structure of oil water separator lower part, and folium eucalypti crude oil is located above condensed water, when condensed water liquid level is higher than
After funnel structure, open funnel structure below condensate drainage pipe, i.e. valve V3, pump R2 and V4, by condensed water by second into
The mouth of a river is sent into destilling tower, and the liquid level of condensed water in oil water separator is made to keep constant, while being ensured higher than condensed water liquid level
Folium eucalypti crude oil is sent through folium eucalypti crude oil outlet to rectification under vacuum part, for extracting to the required ingredient in folium eucalypti crude oil and
Concentration.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably explain the present invention
Principle and practical application, to enable skilled artisan to be best understood by and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (6)
1. a kind of method for extracting eucalyptus leaf essential oil from eucalyptus leaves, which is characterized in that the extracting method of eucalyptus leaf essential oil includes as follows
Step：
（1）, pretreatment, raw material eucalyptus leaves are cleaned and are air-dried, 30-70 mesh size sheets are processed into, by raw material loading material frame in,
For use；
（2）, soak, the eucalyptus leaves handled well are poured into destilling tower and pure water is added and are impregnated, water level has needed
Total flooding raw material, soaking time are 16-20 hours；
（3）, heating distillation, eucalyptus leaves are subjected to heating boiling, 80 DEG C is heated to and keeps constant temperature, in the physics of temperature and distillation
Under effect, oil water mixture is generated；
（4）, water-oil separating, oil water mixture is sent to condenser together with vapor and is condensed, oil water separator is by folium eucalypti
Crude oil is with condensed moisture from condensed water, which is returned in destilling tower, to be continued to be distilled together with eucalyptus leaves volatile matter；
（5）, crude oil it is refined, take out folium eucalypti crude oil and appropriate powdery tartaric acid be simultaneously added, stir 6~10 minutes, it is small to place 10~20
When, clarification is at essential oil after filtering.
2. a kind of method for extracting eucalyptus leaf essential oil from eucalyptus leaves according to claim 1, which is characterized in that the step
（3）Middle to be handled using destilling tower, the top of the destilling tower is equipped with material outlet, is connected with and is used at the material outlet
Carry out the condenser that step (4) is handled；The distillation tower bottom sets heater, and distillation tower side wall is equipped with the first water inlet；Institute
The exit for stating condenser is connected with oil water separator, and the bottom of the oil water separator sets condensate drainage pipe, the grease point
It is equipped with folium eucalypti crude oil outlet from the side wall above device；Distillation tower side wall above first water inlet be equipped with second into
The mouth of a river, the condensate drainage pipe are connected to the second water inlet and extend into destilling tower along the second water inlet, and condensate drainage pipe prolongs
Stretch Duan Shangshe rotary nozzles.
3. a kind of method for extracting eucalyptus leaf essential oil from eucalyptus leaves according to claim 2, which is characterized in that described first
Water inlet pipe is set on water inlet, the condensate drainage pipe connects water inlet pipe.
4. a kind of method for extracting eucalyptus leaf essential oil from eucalyptus leaves according to claim 2, which is characterized in that the distillation
Tower bottom sets waste residue Butterworth Hatch.
5. a kind of method for extracting eucalyptus leaf essential oil from eucalyptus leaves according to claim 2, which is characterized in that the grease
The lower part of separator is in funnel structure.
6. a kind of method for extracting eucalyptus leaf essential oil from eucalyptus leaves according to claim 1, which is characterized in that in the step
Suddenly in (5), the addition of powdery tartaric acid is to be added by the 0.4~0.6% of folium eucalypti oil mass.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810460070.3A CN108395935A (en) | 2018-05-15 | 2018-05-15 | A method of extracting eucalyptus leaf essential oil from eucalyptus leaves |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810460070.3A CN108395935A (en) | 2018-05-15 | 2018-05-15 | A method of extracting eucalyptus leaf essential oil from eucalyptus leaves |
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| CN201810460070.3A Pending CN108395935A (en) | 2018-05-15 | 2018-05-15 | A method of extracting eucalyptus leaf essential oil from eucalyptus leaves |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110055132A (en) * | 2019-03-28 | 2019-07-26 | 广州白云山维一实业股份有限公司 | The method of purification of plants essential oil |
| CN114307218A (en) * | 2022-01-05 | 2022-04-12 | 吉安市中香天然植物有限公司 | Continuous rectification production control system for spices |
| CN115011411A (en) * | 2022-06-14 | 2022-09-06 | 宜宾石平香料有限公司 | Production process for continuously extracting cinnamomum camphora oil |
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| CN101608146B (en) * | 2009-07-08 | 2012-01-11 | 广东铭康香精香料有限公司 | Method for extracting eucalyptus leaf essential oil |
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| CN207159175U (en) * | 2017-08-21 | 2018-03-30 | 宜宾石平香料有限公司 | A kind of set technique equipment by extracting eucalyptus oil in eucalyptus leaves |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110055132A (en) * | 2019-03-28 | 2019-07-26 | 广州白云山维一实业股份有限公司 | The method of purification of plants essential oil |
| CN114307218A (en) * | 2022-01-05 | 2022-04-12 | 吉安市中香天然植物有限公司 | Continuous rectification production control system for spices |
| CN115011411A (en) * | 2022-06-14 | 2022-09-06 | 宜宾石平香料有限公司 | Production process for continuously extracting cinnamomum camphora oil |
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Application publication date: 20180814 |