Air freshener and preparation method thereof
An air freshener, the technology of southern yew, applied in the direction of botanical equipment and methods, biocides, disinfectants, etc., can solve the problems of inability to sterilize, calm the nerves, fail to purify the air, and have insignificant antibacterial effects. Achieve the effect of preventing cardiovascular and cerebrovascular diseases, improving microcirculation, and repelling mosquitoes
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Embodiment 1
[0028] The preparation of embodiment 1 air freshener
[0029] The air freshener of the present embodiment, its raw material composition and preparation method are as follows:
[0030] (1) Take 100g of fresh branches and leaves of yew, cedar, thuja and tea tree respectively, chop them up, add 200mL of distilled water, and after steam distillation for 6 hours, collect the distillate, separate the oil and water, and the water layer is dew; the oil layer is anhydrous sulfuric acid After sodium dehydration, filter to obtain distilled volatile oil for later use.
[0031] (2) Take the waste residue after steam distillation and dry it below 35°C, crush it to 60 mesh, and use supercritical CO 2 The temperature of the extraction kettle is 55°C, the extraction pressure is 25Mpa, CO 2 The flow rate is 25L / h, extract under this condition for 3h, and then separate in the separation tank, the separation temperature is 55°C, and the separation pressure is 10Mpa. After the extraction is com...
Embodiment 2
[0034] Embodiment 2: the preparation of air freshener
[0035] The air freshener of the present embodiment, its raw material composition and preparation method are as follows:
[0036] (1) Take 100g of fresh branches and leaves of yew, cedar, thuja and tea tree respectively, chop them up, add 200mL of distilled water, and after steam distillation for 5 hours, collect the distillate, separate the oil and water, and the water layer is dew; the oil layer is anhydrous sulfuric acid After sodium dehydration, filter to obtain distilled volatile oil for later use.
[0037] (2) Take the waste residue after steam distillation and dry it below 35°C, crush it to 40 mesh, and use supercritical CO 2 The temperature of the extraction kettle is 45°C, the extraction pressure is 20Mpa, CO 2 The flow rate is 20L / h, extract under this condition for 2h, and then separate in the separation tank, the separation temperature is 45°C, and the separation pressure is 8Mpa. After the extraction is com...
Embodiment 3
[0040] Embodiment 3: the preparation of air freshener
[0041] The air freshener of the present embodiment, its raw material composition and preparation method are as follows:
[0042] (1) Take 100g fresh branches and leaves of yew, cedar, thuja and tea tree respectively, chop them up, add 200mL of distilled water, and after steam distillation for 4 hours, collect the distillate, separate the oil and water, and the water layer is dew; the oil layer is anhydrous sulfuric acid After sodium dehydration, filter to obtain distilled volatile oil for later use.
[0043] (2) Take the waste residues after steam distillation and dry them below 35°C, crush them to 20 mesh, and use supercritical CO 2 The temperature of the extraction kettle is 35°C, the extraction pressure is 15Mpa, CO 2 The flow rate is 15L / h, extract under this condition for 1h, and then separate in the separation tank, the separation temperature is 35°C, and the separation pressure is 5Mpa. After the extraction is c...
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