Volatile oil extracting, collecting and separating device

Abstract

The invention relates to a volatile oil extracting, collecting and separating device which is a device for collecting and separating volatile oil, and applicable to the fields of chemical engineering, medicines, foods and the like. The volatile oil extracting, collecting and separating device comprises an extracting tank, a condenser and a collecting and separating facility, wherein the top of the extracting tank is collected with the upper end of the condenser by virtue of a collecting pipeline, the lower end of the condenser enters the inner layer of the collecting and separating facility by virtue of an inlet pipeline, and the outer layer of the collecting and separating facility is connected with the extracting tank through an outlet pipeline; the collecting and separating facility is provided with an air filter; the air pressure balance between the inner layer and the outer layer is kept so as to prevent pollution. The device disclosed by the invention is simple, strong in maneuverability, and applicable to the extraction and separation of volatile oil in the fields of chemical engineering, foods, medicines, and the like.

Description

technical field [0001] The invention relates to a volatile oil extraction, collection and separation device, which is used for the collection and separation of volatile oil, and is suitable for the fields of chemical industry, medicine, food and the like. Background technique [0002] Volatile oil, also known as essential oil, is a kind of volatile oily liquid that exists in plants, can be distilled with water vapor, and is immiscible with water. Most of the volatile oils have aromatic smell and have various biological activities. Volatile oil is widely distributed in the plant kingdom, and hundreds of plants used as traditional Chinese medicine contain volatile oil. The composition of volatile oil is quite complex, and its basic composition is terpenoids, aromatic compounds, aliphatic compounds, etc., among which terpenes account for the largest proportion and are mainly monoterpenes, sesquiterpenes and their oxygen-containing derivatives. Volatile oil is an important sub...

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Problems solved by technology

However, the volatile oil obtained by this method contains more impurities, and other fat-soluble impurities such as resinous chlorophyll have also been proposed, which must be further refined and purified, and a large number of organic solvents are used in production, which seriously pollutes the environment. The residual organic solvent in the volatile oil also makes it security questioned

CO2 supercritical fluid extraction is a new type of extraction and separation technology developed rapidly in the past 20 years. It has many advantages such as low extraction temperature, high efficiency, and low pollution. For substances with high polarity and high relative molecular mass, it is necessary to add entrainer or extract under high pressure, so the investment is large, which brings certain difficulties and restrictions to industrialization

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