49 results about "Gamma-terpinene" patented technology

The present invention relates to a method for treating a disorder chosen from ocular Demodex, Demodex-induced blepharitis, rosacea, acne, and meibomian gland dysfunction in a patient in need thereof, comprising administering to the patient a composition comprising a therapeutically effective amount of a substance chosen from at least one of an isoprenoidal essential oil such as Tea Tree Oil; Terpinen-4-ol; (+)-Carvone; alpha-Terpineol; Cardinene; d-Carvone; l-Carvone; gamma-Terpinene; alpha-Terpinene; 1,8-Cineole; alpha-Terpineol; para-Cimene; alpha-Pinene; Limonene; (R)-(+)-Limonene; alpha-Thugene; Eucalyptol; (+)-Ledene; Cuminic Aldehyde; and Myrcene; the administration comprising contacting or scrubbing an affected area of skin or hair, or eyelid margin and lashes of the patient with the composition; also disclosed are a method for treating mange and mite infestations on a mammalian animal; and kits for in-office and at home treatments of the disorders.

The present invention provides a liquid detergent composition, comprising: (a) a cleaning effective amount of an enzyme preferably selected from a proteolytic enzyme, an amylolytic enzyme, a lipolytic enzyme, a cellulolytic enzyme and mixtures thereof; (b) from 0.001 to 3% by weight of a perfume composition, not containing a perfume component selected from the group consisting of saturated and unsaturated linear aldehydes, lilial, cyclal c, vanillin, citral, cinnamic aldehyde, pulegone, terpinolene, gamma terpinene, alpha methylionone; (c) from 0.002 to 1% by weight of an antioxidant; and (d) a fatty acid soap in an amount of at most 4% by weight. Said detergent composition was found to have favourable storage stability characteristics.

The invention discloses an aryl ruthenium complex, a preparation method and an application thereof. The aryl ruthenium complex is chemically named as monochlorinate-chlorine-thiophene-2-hydrazine carbothioamide-cymenoruthenium (II). The preparation method comprises the following steps of: 1, dissolving RuCl3.xH2O and gamma-terpinene into ethanol, heating, refluxing and stirring for 6 hours to obtain a product A; 2, dissolving thiosemicarbazide and 2-formylthiophene together in methanol solution, heating to 70 DEG C for 3 hours, standing and separating to obtain 2-formylthiophene thiosemicarbazones; and 3, dissolving the products obtained in steps (1) and (2) into dichloromethane, heating to 45 DEG C, stirring and refluxing for 6 hours to obtain the monochlorinate-chlorine-thiophene-2-hydrazine carbothioamide-cymenoruthenium (II). The aryl ruthenium complex and the preparation method have the beneficial effects that the preparation method is simple, raw materials are easy to obtain, and an advantage of low cost is achieved; and the obtained product is used for preparing medicines for treating cancers, and can be produced into dosage forms such as injection, tablets, pills, capsules, suspension agents or emulsion to use.

The invention discloses a purification method for 1, 8-cineole and particularly discloses a separation and purification method for 1, 8-cineole in low-content raw oil. The method is characterized by comprising the steps of (1) adding raw oil, acetic acid or a water solution of acetic acid and a catalyst into a reaction flask, wherein the raw oil contains 1, 8-cineole and limonene; (2) heating and stirring to react; (3) after the reaction is ended, filtering a reaction solution to recycle the catalyst, and carrying out reduced pressure distillation on an oil phase to obtain 1, 8-cineole with high purity. By using the purification method, the content of 1, 8-cineole in the raw oil can be kept constant after being treated, and the content of limonene as an impurity can be reduced to 0.2-1.1%, so that 1, 8-cineole with high purity can be obtained. Meanwhile, after reacting, limonene in the raw oil generates alpha-terpinene, gamma-terpinene, alpha-terpilenol and the like which all have higher additional values and can not affect the distillation of 1, 8-cineole, therefore, the purification method is a low-cost and green-chemical purification method.

The invention discloses a citrus psylla attractant which is prepared from the following components in percentage by weight: 1%-5% of alpha-pinene, 50%-80% of D-limonene, 1%-5% of ocimene, 1%-5% of linalool, 10%-20% of gamma-terpinene, 1%-5% of naphthalene, 1%-5% of n-tetradecane, 1%-5% of linalyl acetate, 1%-5% of methyl salicylate, 1%-5% of lauric acid, 1%-5% of citral, and 1%-5% of acetic acid.The citrus psylla attractant has the advantages of good attracting effect, strong specificity, long lasting time, high efficiency, natural property, environmental protection and the like, and does notcause harm to natural enemies, beneficial insects, human and livestock and crops, and target pests do not produce resistance to the attractant.

The invention discloses a method for synthesizing 4-terpineol by catalyzing 1,4-cineole through a supported acid catalyst. The method comprises the following steps: preparing a catalyst, preparing 4-terpineol and the like. According to the method for synthesizing 4-terpineol by catalyzing 1,4-cineole through the supported acid catalyst disclosed by the invention, the chromatogram content can be 5% or lower after the 1,4-cineole in the raw oil is completely reacted, while the selectivity of the 4-terpineol reaches 80% or higher. Meanwhile, in addition to the 4-terpineol produced in the reaction, alpha-terpinene, gamma-terpinene and the like with high additional value can be produced, and the used mordenite supported acid catalyst can be recycled. The method disclosed by the invention has the advantages of small catalyst dosage, high selectivity, short reaction time, simple and convenient process, simplicity in operation and the like.

The invention discloses a dinuclear organic metal ruthenium compound and a preparation method and application thereof. The chemical name of the dinuclear organic metal ruthenium compound is di(p-hydroxy benzaldehyde) thiosemicarbazone dimethyl isopropylbenzene diruthenium dichloride (II). The preparation method comprises the following steps of: 1) dissolving RuCl3.xH2O and gamma-terpinene into ethanol and carrying out heating reflux and stirring for six hours to obtain a product A; 2) dissolving thiosemicarbazide and p-hydroxy benzaldehyde into ethanol solution, heating the solution to 80 DEG C, standing for four hours and precipitating out p-hydroxy benzaldehyde thiosemicarbazone; and 3) dissolving the products obtained in the steps 1) and 2) into acetone, heating the solution to 45 DEG C and carrying out stirring and reflux for six hours to obtain the product-di(p-hydroxy benzaldehyde) thiosemicarbazone dimethyl isopropylbenzene diruthenium dichloride (II). The preparation method is simple and is low in cost; raw materials are easily available; and the obtained product is used for preparing the drugs for treating cancers and can be prepared into injections, tablets, pills, capsules, suspending agents or emulsion.

The invention discloses a genetically engineered bacterium with gamma-terpinene synthesis capacity and a constructing method and application thereof, and belongs to the technical field of genetic engineering. According to engineered escherichia coli, a path for synthesizing MVA from mevalonic acid is reconstructed by heterogeneous expression of hydroxymethylglutaryl coenzyme A synthetase mvaS, hydroxymethylglutaryl coenzyme A reductase mvaE, mevalonate kinase Erg12, phosphomevalonate kinase Erg8, mevalonate pyrophosphate decarboxylase Erg19 and Isopentenyl diphosphate isomerase Idi1, meanwhile, geranyl pyrophosphate synthetase GPPS2 and gamma-terpinene TPS2 are led into a bacterium body, and by utilizing the biotransformation capacity of the genetically engineered bacterium, gamma-terpinene can be efficiently produced in an environment-friendly mode. Through fermentation with the genetically engineered bacterium, the output of gamma-terpinene can reach 80 mg / L. The genetically engineered bacterium and the gamma-terpinene synthesis method are suitable for practical industrial production.

The present invention relates to a method for treating a disorder chosen from ocular Demodex, Demodex-induced blepharitis, rosacea, acne, and meibomian gland dysfunction in a patient in need thereof, comprising administering to the patient a composition comprising a therapeutically effective amount of a substance chosen from at least one of an isoprenoidal essential oil such as Tea Tree Oil; Terpinen-4-ol; Carvone; alpha-Terpineol; Cardinene; d-Carvone; l-Carvone; gamma-Terpinene; alpha-Terpinene; 1,8-Cineole; alpha-Terpineol; para-Cimene; alpha-Pinene; Limonene; (R)-(+)-Limonene; alpha-Thugene; Eucalyptol; (+)-Ledene; Cuminic Aldehyde; and Myrcene; the administration comprising contacting or scrubbing an affected area of skin or hair, or eyelid margin and lashes of the patient with the composition; also disclosed are a method for treating mange and mite infestations on a mammalian animal; and kits for in-office and at home treatments of the disorders.

The invention relates to a high-stability pig plant essential oil additive. The high-stability pig plant essential oil additive is characterized by comprising the following components in weight percent: 20%-25% of cinnamyl aldehyde, 13.5%-17.5% of thymol, 1.5%-3.5% of limonene, 1.5%-3.5% of gamma-terpinene, 0.5%-1.5% of p-cymene, 1.5%-5% of an antioxidant, 2%-6% of a cosolvent and 42%-47% of a carrier. The invention further provides a preparation method and application of the high-stability pig plant essential oil additive. The high-stability pig plant essential oil additive has an anti-oxidization function and high stability, and can easily play a role in digestive tracts of pigs.

The invention discloses a plate chain conveyor which comprises a metal transmission shaft. The metal transmission shaft is subjected to surface treatment. The surface treatment includes the following steps that (1) 1-2 parts by mass of ethylene glycol monostearate, 1.3 parts by mass of hexyldecanol, 1.5 parts by mass of lauryl alcohol, 0.8 part by mass of vaseline, 0.9 part by mass of zinc epoxy acid, 1.2 parts by mass of gamma-terpinene and 2.6 parts by mass of polyacrylic acid are added into 15.6 parts by mass of deionized water and evenly stirred and mixed, so that a surface treatment working solution is prepared; (2) the temperature of the surface treatment working solution is increased to 45.5 DEG C; and (3) the metal transmission shaft is placed in the surface treatment working solution to be soaked for 24.5 minutes, and then the metal transmission shaft is taken out and dried. The metal transmission shaft of the plate chain conveyor is subjected to the surface treatment, thereby having excellent friction resistance, corrosion resistance, rust resistance, heat resistance, cold resistance and weather resistance.

A flavor inhaler comprising: a tubular holder that extends from a mouthpiece end to a distal end; a combustion type heat source that is provided at the distal end, contains activated carbon, and carries a first flavorant; and a flavor source that is held in the holder and carries a second flavorant, wherein the first flavorant contains at least one selected from the group consisting of anethole, 2-pinene, 3-citronellol, linalyl acetate, limonene, anisaldehyde, 4-terpineol, 2-β-pinene, jasmone, sabinene, linalool, 1,8-cineole, phenethyl alcohol, and myristicin, and the second flavorant contains at least one selected from the group consisting of α-terpinene, γ-terpinene, nerol, geraniol, and decanal.

The invention discloses a lemon essence which is composed of the following components: beta-pinene, myrcene, 1,8-cineole, gamma-terpinene, terpinene, linalool, fenchol, beta-terpineol, eugenol, alpha-terpineol, octanal, neral, pelargonaldehyde, valeraldehyde, capraldehyde, citronellal, hexanal, lauric aldehyde, citral, neryl acetate, geranyl acetate, lime oil, Argentine lemon oil, American lemon oil, Chinese lemon oil, Italian lemon oil, and ethanol. The lemon essence has stable quality, natural flavor, full aroma, and sour and real taste.

The invention discloses a cloth placing machine. The cloth placing machine comprises a metal rotating shaft which is subject to surface treatment, wherein surface treatment comprises the following steps that Step1, by mass, 1-2 parts of sodium citrate, 1.8 parts of zinc nitrate, 0.4 part of 4,4-methylene(2,6-di-tert-butyl-phenol), 1.7 parts of hexyldecanol, 2.2 parts of magnesium hydrate, 1.8 parts of gama-Terpinene and 1.5 parts of castor oil polyoxyethylene ether are added into 10 parts of de-ionized water, and the mixture is stirred to be uniform, so that working fluid for surface treatment is prepared; Step2, the working fluid for surface treatment is heated to 51 DEG C; Step3, the metal rotating shaft is placed into the working fluid for surface treatment and soaked for 30 minutes, and then the metal rotating shaft is taken out and dried. According to the cloth placing machine, the metal rotating shaft is subject to surface treatment, thereby having good abrasion resistance, corrosion resistance, rust resistance, heat resistance, cold resistance and weather resistance.

A personal care composition is provided having a fragrance which incorporates limonene, gamma terpinene, ethylene brassylate or combinations thereof in conjunction with a quaternary ammonium salt. The salt has a structure AB, wherein A is a cationic charge component, B is an anionic charge component, and A has one quaternized nitrogen atom, at least two hydroxyl groups and a molecular weight no higher than about 250. The quaternary ammonium salt functions as a scent boosting agent to enhance volatilization of the fragrance components when the personal care composition is first applied to skin or hair of the human body.

The present invention relates to a composition for use as an oral anti-parasitic, the composition comprises one or more of an essential oil which contains gamma-terpinene, and / or carvacrol, and / or thymol, and / or terpinenol, and / or eucalyptol and / or eugenol, an essential oil of genus Cinnamomum, Eugenia, Eucalyptus or a source of saponin. It also relates to a method of preventing or treating parasitic infection in an animal, the method comprising orally administering to said animal a composition comprising one or more of an essential oil which contains gamma-terpinene, and / or carvacrol, and / or thymol, and / or terpinenol, and / or eucalyptol and / or eugenol, an essential oil of genus Cinnamomum, Eugenia, Eucalyptus or a source of saponin.

The invention provides a polymerization inhibitor preventing the self-polymerization of TFE and not modified to macromolecule body by oxygen in a distillation step, particularly in a rectification step, of TFE. The invention provides a method of distilling tetrafluoroethylene in the presence of the polymerization inhibitor comprising a cyclohexadiene compound of the formula: R<1>-A-R<2>, wherein R<1> is a hydrocarbon group having 1 to 5 carbon atoms, R<2> is a hydrogen atom or a hydrocarbon group having 1 to 5 carbon atoms, and A is a cyclohexadiene ring. The cyclohexadiene compound is preferably alpha-terpinene or gamma-terpinene.

The fragrance composition of Citrus flowers according to the present invention is produced by respectively adding jasmone and beta-caryophyllene to linalool, myrcene, nerolidol, methyl anthranilate or the like which have been analysed to be aromatic components of the flowers of Citrus unshin and the flowers of Citrus natsudaidai by means of the SPME method, and by adding gamma-terpinene to linalool, myrcene, geraniol, beta-ocimene or the like which have been analysed to be aromatic components of the flowers of Citrus sudachi, and also adding alpha-farnesene to beta-ocimene, 6-methyl-5-hepten-2-one, anthranilaldehyde, limonene, methyl anthranilate or the like which have been analysed to be aromatic components of the flowers of Citrus japonica. The present invention makes it possible to provide a fragrance composition which is outstandingly palatable while reproducing the inherent aromas of Citrus unshin, Citrus natsudaidai, Citrus sudachi and Citrus japonica.

The invention relates to a complexing agent for removing phenolic compounds in water. The complexing agent is made from, Nu-terpinene, 3-phenyl-2-propyl acrylate, cyanidin chloride, iron ammonium oxalate, Alpha-copaene, climbazole, buflomedil, Cupferron, ferric chloride, asiaticoside, hexythiazox, bornyl acetate, polyacrylamide, [R-(R*, R*)]-2, 3, 4-hydroxybutyraldehyde, fucoxanthine, and 2-hydroxyethyl cellulose. The complexing agent has high ability to complex with the phenolic compounds, complex precipitant forms fast, the removal rate of the phenolic compounds is up to 99%, the complexing agent is of low toxicity, required usage of the complexing agent is low, no hazard is caused to the water, and the treatment cost is low.

The present invention provides a polymerization inhibitor preventing the self-polymerization of TFE and the generation of a modified polymer of a polymerization inhibitor in a distillation step, particularly in a rectification step, of TFE. The present invention provides a method of distilling tetrafluoroethylene in the presence of a polymerization inhibitor comprising a cyclohexadiene compound of the formula:R1-A-R2 wherein R1 is a hydrocarbon group having 1 to 5 carbon atoms, R2 is a hydrogen atom or a hydrocarbon group having 1 to 5 carbon atoms, and A is a cyclohexadiene ring. The cyclohexadiene compound is preferably α-terpinene or γ-terpinene.

The invention discloses tissue transparent reagent, and a preparation method and applications thereof. The tissue transparent reagent comprises the following components in percentage by volume: 0.59 to 0.79 percent of a-pinene, 0.45 to 0.65 percent of b-pinene, 0.45 to 0.65 percent of limonene, 0.45 to 0.65 percent of terpene, 0.45 to 0.65 percent of longifolene, 0.45 to 0.65 percent of caryophyllene, 0.45 to 0.65 percent of aldehyde citral juice, 32.3 to 34.3 percent of d-limonene, 26.7 to 28.7 percent of gamma-terpinene, 0.45 to 0.65 percent of capric aldehyde, 0.45 to 0.65 percent of caprylic aldehyde, 0.45 to 0.65 percent of citral and 32.3 to 34.3 percent of normal butanol. The tissue transparent reagent can replace the conventional transparent reagent xylene, sample tissue treated by the tissue transparent reagent does not become fragile, and is good in the transparent effect.

The invention discloses phthalocyanine-aryl ruthenium compound, namely mono-Beta-mono-2-(2-diethylamine)ethoxy-phthalocyaninemonomethylcumeneruthenium monochloride (II). The invention also discloses a preparation method of the phthalocyanine-aryl ruthenium compound; the preparation method comprises: 1) dissolving RuCl3.xH2O and Gamma-terpinene in absolute ethyl alcohol, heating for refluxing and stirring, standing and separating out to obtain dichloro-di-methylcumeneruthenium dichloride (II); 2) dissolving Beta-mono-nitro-phthalocyanine and 2-(2-diethylamine)ethanol in DMF (dimethyl formamide) solution, reacting under nitrogen protection, and standing and separating out to obtain Beta-mono-2-(2-diethylamine)ethoxy-phthalocyanine; 3) dissolving the Beta-mono-2-(2-diethylamine)ethoxy-phthalocyanine and the dichloro-di-methylcumeneruthenium dichloride (II) in absolute ethyl alcohol, heating and stirring for refluxing, reacting, adding n-hexane, and separating out red crystal which is the product mono-Beta-mono-2-(2-diethylamine)ethoxy-phthalocyaninemonomethylcumeneruthenium monochloride (II). The invention also discloses application of the phthalocyanine-aryl ruthenium compound.

The invention relates to a water treatment agent for removing phenolic compounds from water. The water treatment agent is composed of Nu-terpinene, 3-phenyl-2-acrylic acid n-propyl ester, rabeprazole, iron ammonium oxalate, Alpha-copaene, climbazole, buflomedil, vinyl laurate, ferric chloride, asiaticoside, phthalylsulfathiazole, 3-nonene-2-one, polyacrylamide, (R-(R*, R*))-2, 3, 4-trihydroxybutyraldehyde, fucoxanthine, and 2-hydroxyethyl cellulose. The water treatment agent is highly able to complex with the phenolic compound, complex precipitate forms fast, the removal rate of the phenolic compounds is up to 99%, toxicity is low, little usage is required, no hazard is caused to the water, and treatment cost is low.

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.

The present invention provides a polymerization inhibitor preventing the self-polymerization of TFE and the generation of a modified polymer of a polymerization inhibitor in a distillation step, particularly in a rectification step, of TFE. The present invention provides a method of distilling tetrafluoroethylene in the presence of a polymerization inhibitor comprising a cyclohexadiene compound of the formula:R1-A-R2 wherein R1 is a hydrocarbon group having 1 to 5 carbon atoms, R2 is a hydrogen atom or a hydrocarbon group having 1 to 5 carbon atoms, and A is a cyclohexadiene ring. The cyclohexadiene compound is preferably α-terpinene or γ-terpinene.

The invention relates to a eucalyptus oil falling film-type fractionating tower, which is a device for separating Gamma-terpinene and P-cymene, and belongs to a fractionating tower for producing eucalyptus essential oil. A condensation return passage with the heat exchange area being 60 to 70 percent of the heating area is arranged on a total condenser on the top of a falling film tower and a return distributor on the top of the tower, namely, condensation passage pipe columns, which are same with the gas flow of the tower, are uniformly arranged on a pipe sheet tray, and the pipelaying area of the pipe columns accounts for 40 percent of the area of the tray. The invention keeps the prior processing conditions, reduces the volatilization of Gamma-terpinene and P-cymene, and improves the relative volatilities of the components of eucalyptus oil so that the content of primarily fractionated eucalyptol is more than 80 percent. High degree of separation is reached, and the cost is low. The eucalyptus oil falling film-type fractionating tower prevents material consumption resulting from newly added equipment, and turns to be efficient in production.

The invention uses Ligusticum chuanxiong volatile oil as a research object, and identifies 13 chemical components related to blood vessel activities (sabinene, gamma-terpinene, terpinolene, (-)-4-terpineol, 4-vinylguaiacol, alpha-selinene, (-)-spainulenol, (+)-spainulenol, 4-iodoindoline, n-butylidenephthalide, N-acetylphenylhydrazine, 4,5-dihydro-3-butylphthalide, and ligustilide), wherein ligustilide, 4,5-dihydro-3-butylphthalide, n-butylidenephthalide and (-)-4-terpineol are main components with blood vessel dilating effect in Ligusticum chuanxiong volatile oil. The identification method comprises the following steps: extracting volatile oil by steam distillation, analyzing chemical components of the volatile oil with GC-MS (gas chromatography-mass spectroscopy), detecting blood vessel dilating activity of the volatile oil, constructing a mathematical model between Ligusticum chuanxiong volatile oil chemical components and blood vessel dilating activity using data mining methods (LARS (least-angle regression) and LASSO (leastabsolute shrinkage and selection operator) regression algorithms), and analyzing the correlation between the components and the blood vessel dilating activity. The blood vessel dilating effective ingredients of the invention can be used for preparing blood vessel dilating medicines.

The invention provides a method for trapping and killing empoasca vitis by using mint volatile matter. The empoasca vitis is used as test insects, six kinds of volatile matter of mint plants are used as smell sources, the six kinds of volatile matter comprise cis-3-hexenyl acetate, 3-octanone, caryophyllene, alpha-phellandrene, eucalyptol and gamma-terpinene, n-hexane is used as solvents to be prepared into trapping and killing agents according to the proportional combination being 1:0.112:0.1-12:0.1-12:0.1-12:0.1-12, the trapping and killing agents are carried with a rubber head to be made into a trapping core and attached to a bud green round sticky trap, and trapping and killing are performed at peaks of the empoasca vitis. According to the method, the weed mint volatile matter which is common in a tea garden is used for trapping and killing the empoasca vitis which is the most important injurious insects, the use amount of chemical pesticide is reduced, and the problems that drug resistance of the empoasca vitis occurs, pesticide residues of tea leaves exceed the standard, and the number of subordinate injurious insects is increased to cause rampancy are solved. The trapping and killing agents of the empoasca vitis are high in trapping efficiency, safe, free of pollution and compatible with the environment, the trapping speed is high, use is convenient, and cost is low.

The invention relates to a eucalyptus oil falling film-type fractionating tower, which is a device for separating Gamma-terpinene and P-cymene, and belongs to a fractionating tower for producing eucalyptus essential oil. A condensation return passage with the heat exchange area being 60 to 70 percent of the heating area is arranged on a total condenser on the top of a falling film tower and a return distributor on the top of the tower, namely, condensation passage pipe columns, which are same with the gas flow of the tower, are uniformly arranged on a pipe sheet tray, and the pipelaying area of the pipe columns accounts for 40 percent of the area of the tray. The invention keeps the prior processing conditions, reduces the volatilization of Gamma-terpinene and P-cymene, and improves the relative volatilities of the components of eucalyptus oil so that the content of primarily fractionated eucalyptol is more than 80 percent. High degree of separation is reached, and the cost is low. The eucalyptus oil falling film-type fractionating tower prevents material consumption resulting from newly added equipment, and turns to be efficient in production.