SU916533A1 - Apparatus for extracting lipids - Google Patents

Description

The invention relates to a technique of laboratory extraction and can be used in factory, research and educational laboratories for extraction for analytical and preparative purposes. Substances from oil-containing materials using solvents.

Known apparatus for the extraction of lipids, including extractor, miscello receiver and device for supplying the extractant, [1].

The disadvantages of the known apparatus are the need for continuous heating of the extractant to ensure its circulation, which leads to changes in the thermolabile substances in the solution, to large losses of low-volatile solvents, to increased fire and explosion hazard, and a long process time, as the method of extraction is used.

The purpose of the invention is the preservation of soluble substances in the native state

2

by preserving the heating of the extractant, as well as reducing fire and explosion hazard.

This goal is achieved by the fact that the apparatus, which includes an extractor, a miscello receiver and a device for supplying the extractant, is equipped with filters for even distribution of the extractant, located in the lower part of the extractor with a gap for accommodating the extracted material; the expiration of the extractant in the form of drops, while the ratio of the diameter and height of the extractor is 1/7 “1/9.

The drawing shows the apparatus for the extraction of lipids.

The apparatus consists of an extractor 1, which is a cylinder with a diameter of 15 "18 mm. The ratio of the diameter to the height of the cylinder is not less than 1/7 “1/9. At the base of the cylinder there is a narrowing,

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in which is placed a porous glass filter 2 or a tampon of glass wool.

At the top of the cylinder on the ground joint there is a device for supplying the extractant, including a pressure vessel 3, a needle regulator 4 for the speed of supply of the extractant to the material, which consists of a capillary. ten

The controller 4 supply of the solvent is fixed in the tube 5 of the vessel 3 for the extractant. The stopper 5 has an opening for communication with the atmosphere. The extractor 1 is articulated with the vessel 3, when the ground and the edge of the ground joint is connected to the receiving flask 6, which has an outlet tube 7 for communication with the atmosphere, to which the calcium chloride tube 8 is attached.

The device works as follows *

The extraction process in the proposed apparatus is carried out by placing the material 25 prepared for extraction inside the extractor 1 on a glass filter or tampon 2. The layer height is 7 ~ 9 times or more than its diameter, since an increase in this ratio leads to formation

stagnant zones in areas where the material is adjacent to the extractor rats, and a decrease in the ratio leads to a decrease in the rate of extraction. Layer should not be empty zones ₃₅ GOVERNMENTAL filled with air. A porous glass filter or a glass wool tampon is placed tightly over the material. Fill a desired solvent vessel 3 and the screw and the feed rate adjusted solubility of Tell ₄₀ which is maintained at 0.5 "10 ml / hr.

Extractant drops, falling on top of the material, dissolve the extractable

substance, and gradually due to the forces of gravity, the resulting solution moves to the lower layers of the material.

The concentration of the solution on the extracted substance increases and reaches the maximum value at the outlet of the lower layer of material.

The use of the proposed apparatus allows to obtain high concentrations of miscella, which reduces the consumption of solvents and reduces the cost of their distillation and makes it possible to use a wide range of solvents: pure, volatile and nonvolatile, their azeotropic and non-azeotropic mixtures;

Claims (1)

Claim Apparatus for extracting lipids, including an extractor, a miscello receiver and a device for supplying the extractant, characterized in that, in order to preserve the dissolved substances in the native state by eliminating the heating of the extractant, as well as reducing fire and explosion hazard, it is equipped with filters for even distribution of the extractant located in the lower part extractor with a gap to accommodate the material being extracted, a device for supplying the extractant is made in the form of a pressure vessel with a needle regulator the extractor flow rate in the form of droplets, while the ratio of the diameter and height of the extractor is 1 / 7-1 / 9.