Litsea cubeba oil is a valuable export oil in China. It contains citral and is one of the important natural spices in the spice industry。It is of great economic significance to improve the distillation and processing of litsea cubeba oil and improve the specification and quality of the finished oil。
 
The processing process is described as follows:
1. Selection and installation of distillation cubeba oil equipment。The distillation equipment mainly consists of three parts: steam barrel, boiler and condenser。The steam bucket has wood and iron, because the wood steam bucket is easy to leak air and volatile oil, the oil yield is low, so now the production areas generally use iron steam bucket。Whether made of wood or iron, it is necessary to pay attention to the retort skin can not be in contact with fire, so as not to burn raw materials and destroy the quality of oil。The condenser is better with serpentine tube type, and it is best to use pure tin manufacturing, such as no pure tin can be used galvanized iron or copper。The diameter of the steamer bucket is equal to the height or the height is slightly larger than the diameter, and the material capacity is 200 kg。The boiler should choose a new product with more than 13 fire tubes, and the installation should choose a place where the water source is convenient, and it is best to use the tap water with low water temperature to cool it。The equipment should be carefully checked before and after installation, and there should be no loopholes or cracks. The connection of all parts of the equipment must be sealed to prevent gas leakage。
 
Second, processing methods and steps。
(1) Boil the water first, and then put the cubeba oil raw material into the steaming bucket。Raw materials into the bottle should be evenly loaded, do not vary in tightness。
(2) The fire requires dry firewood, fire enough, the use of boilers is best to burn coal。The firepower should not be large when small, the firepower should be fierce when the steam is initially steamed, and the firepower should be maintained evenly after the steam is up。
 
(3) The amount of water in the steamer must be maintained during the distillation process。Too low water level will make the slag stick to the pot and burn, affecting the quality of oil;High water level will make the bottom raw materials boiled by water, reducing the amount of oil。Therefore, the water meter should be checked frequently, and when the water level drops to half, water should be added to the pot。Hot water should be used to fill the water。After each processing, the boiler and condensing pipe should be cleaned and inspected。
(4) The condensing pipe should be fully immersed in cold water。Cooling should use tap water as far as possible, the water temperature should be kept below 40 ° C, the temperature is too high will reduce the oil yield and oil degree。
(5) When taking the oil, use the oil separator to release all the water under the oil, and load the pure oil into the oil drum。The oil foot should be repeatedly precipitated and filtered before loading into the oil drum。
3. Packaging management and transportation。Because cubeba oil has a certain corrosion, so do not use plastic barrels of oil, to use galvanized iron or galvanized iron barrels, should not be filled。Keep it in a cool and ventilated place, avoid direct sunlight exposure。Waste cotton, rags and other flammable materials stained with litsea cubeba oil are easy to spontaneously ignite and catch fire, so dangerous goods should be treated during storage and transportation。
(The above content is from Baidu Search。）