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Extraction method of camphorated oil

An extraction method and camphor oil technology, applied in the direction of fat oil/fat production, fat oil/fat refining, fat production, etc., can solve the problems of low quality and low extraction rate, and achieve the goal of reducing production cost, improving dissolution rate, and reducing burden Effect

Inactive Publication Date: 2017-02-22
长沙博阳木业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, camphor oil is mainly extracted by steam distillation, but it has the disadvantages of low extraction rate and low quality.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A kind of extracting method of camphor oil, concrete steps are as follows:

[0019] 1) Raw material selection: select the branches and leaves of camphor trees over 30 years old and wash them, and crush the cleaned branches and leaves of camphor trees evenly to 80 meshes; 2) Extraction: extract the raw materials obtained in step 1) with petroleum ether with a boiling range of 80°C, The volume ratio is 4:1, and the leaching cycle is carried out twice, each time for 2 hours; 3) Distillation: the extract in step 2) is concentrated under reduced pressure to recover petroleum ether to obtain a concentrated solution, and the concentrated solution and the extracted raw material Put water and water into the distillation still at a volume ratio of 1:4 for distillation, pass steam into the still for direct heating; the vacuum in the still is -0.06MPa, and the distillation temperature is 140°C; when the temperature in the still reaches 100°C , turn on the condenser connected to the...

Embodiment 2

[0021] A kind of extracting method of camphor oil, concrete steps are as follows:

[0022] 1) Raw material selection: wash the branches and leaves of camphor trees over 30 years old, and crush the cleaned branches and leaves of camphor trees evenly to 50 mesh; The ratio is 4: 1, 4 times of circulating extraction, each extraction is 2 hours; 3) Distillation: step 2) the extract is concentrated under reduced pressure to recover petroleum ether to obtain a concentrated solution, and the concentrated solution, the extracted raw materials and Water is put into the distillation still at a volume ratio of 1:7 for distillation, and steam is passed into the still for direct heating; the vacuum degree in the still is -0.08MPa, and the distillation temperature is 150°C; when the temperature in the still reaches 100°C, Open the condenser connected to the distillation kettle, connect the cooling water, and control the water temperature of the cooling water outlet of the condenser at 40°C b...

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Abstract

The invention discloses an extraction method of camphorated oil. The method comprises the steps of crushing camphor branches and leaves to 50-80 meshes, leaching with aether petrolei, leaching for 2-4 times in cycles, after concentrating and recycling the aether petrolei, adding the concentrated liquid and material residue into a distilling device for distillation, cooling the distilled products and conducting the oil-water separation, collecting the oil layer and conducting the membrane filtration to obtain the camphorated oil product, at the same time conducting distillation again to the water layer acquired from the oil-water separation. The camphorated oil extracted by the method has the advantage of high extraction rate, low residues and higher quality.

Description

technical field [0001] The invention relates to the field of plant extracts, in particular to a method for extracting camphor oil. Background technique [0002] Camphor oil is refined from camphor resin. It is a colorless or light yellow to reddish-brown oily liquid. It is soluble in ethanol and ether. It has a strong smell of camphor. It is a high-ash substance with strong volatility. It has a special fragrance of camphor oil. In addition to repelling insects and repelling mosquitoes, it also has functions such as healing wounds and deodorizing, and has a wide range of uses. Dip cotton with camphor oil, make camphor cotton balls, and put them in pianos, wooden furniture, wardrobes, and dressing tables to prevent moths and cockroaches. Apply camphor oil along doors, windows and walls to prevent cockroaches from entering. At the same time, camphor oil can be fractionated to extract camphor, white camphor oil, red camphor oil and blue camphor oil, which have different uses a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/04C11B1/10C11B3/00
CPCC11B1/04C11B1/10C11B1/108C11B3/001C11B3/008
Inventor 莫维
Owner 长沙博阳木业有限公司
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