Extraction line
The extraction method of extracting oils is the most economical, provides maximum degreasing of oilseeds, allows you to get high quality oil and fat–free residue - meal. The extraction method for obtaining vegetable oil is the only way to ensure almost complete oil extraction. The oil content in the material after processing (meal) is not more than 1%.
Appointment
The extraction of oil by extraction is based on the ability of vegetable oils to dissolve in organic solvents. The result of the extraction process is the production of a miscella, which is a solution of oil in a solvent, and the meal is a solid fat-free residue. Impurities are removed from the miscell by filtration, and then, when heated under vacuum, the solvent is distilled (evaporated).

Characteristics of the extraction line
The extraction method is used in two variants of technological schemes:
1 – in the direct extraction scheme;
2 – in the extraction scheme in combination with pre-pressing.
Direct extraction can be used for any type of oilseed raw materials, but the method is especially applicable for soybeans. At the same time, mint is extracted, which has undergone moisture-heat treatment and passed through roller machines for forming petal plates (raw petal).
According to the pre-pressing-extraction scheme, the main oilseed raw materials are processed, with the exception of soybeans. To do this, 80...85% of the oil is extracted at the first stage of pressing, which facilitates the second stage – extraction. The prepress cake is ground to a grain, then petaling and, if necessary, expansion are also carried out.



The oil extraction process consists of several main stages:
1 – Extraction – extraction of oil from a pre–prepared material (mint or prepress cake - depending on the method of processing seeds, which is determined by their oil content) using a solvent. Oil extraction is carried out in an extractor in which the extracted material is in contact with a solvent (hexane). The result is a missella.
2 – Distillation of the solvent from the meal – the effect of deaf and sharp steam on the meal in a state of discharge. Two types of evaporators are used for heat treatment:
- vat evaporators (toasters) in which the solvent is distilled from the material in a movable layer;
- screw evaporators in which the solvent from the meal is distilled in a partially suspended layer.
3 – Distillation of a miscella is a process of distilling a solvent from a miscella,
aimed at obtaining an oil with indicators that meet the
requirements of standards.
4 – Solvent regeneration and recovery - preservation and return to production of the solvent removed from the miscell and meal by distillation. Solvent vapors formed during heating of the miscell and meal are passed through cooling heat exchangers-condensers. In this case, the main part of the vapors is regenerated, which is in the form of concentrated vapors. Some of the solvent vapors form low-concentration gas-air mixtures. The capture of a solvent from a low-concentration air mixture is called recuperation.
All technological processes for obtaining vegetable oil by extraction are processes of a continuous production cycle that operate automatically and are controlled from a computer.
The composition of the processing line
- Extractor;
- The toaster;
- Heat exchangers.
Advantages of the extraction method
- Low residual oil level, less than 1% oil in the cake (high oil yield);
- Low labor intensity and easy maintenance of equipment;
- Good meal quality.
Disadvantages of the extraction method
- The use of toxic solvents, flammable and volatile substances;
- The possibility of formation of explosive concentrations of a mixture of solvent vapors and air inside the device.
Contact us
Our qualified specialists are always ready to work with you to create a solution that meets specific requirements and processes, to carry out the layout of the line, to discuss the technological features of the equipment and to clarify prices.
If you have any questions, please contact us using the contact phone number, use the feedback form or send an e-mail request.
The extraction of oil by extraction is based on the ability of vegetable oils to dissolve in organic solvents. The result of the extraction process is the production of a miscella, which is a solution of oil in a solvent, and the meal is a solid fat-free residue. Impurities are removed from the miscell by filtration, and then, when heated under vacuum, the solvent is distilled (evaporated).

The extraction method is used in two variants of technological schemes:
1 – in the direct extraction scheme;
2 – in the extraction scheme in combination with pre-pressing.
Direct extraction can be used for any type of oilseed raw materials, but the method is especially applicable for soybeans. At the same time, mint is extracted, which has undergone moisture-heat treatment and passed through roller machines for forming petal plates (raw petal).
According to the pre-pressing-extraction scheme, the main oilseed raw materials are processed, with the exception of soybeans. To do this, 80...85% of the oil is extracted at the first stage of pressing, which facilitates the second stage – extraction. The prepress cake is ground to a grain, then petaling and, if necessary, expansion are also carried out.



The oil extraction process consists of several main stages:
1 – Extraction – extraction of oil from a pre–prepared material (mint or prepress cake - depending on the method of processing seeds, which is determined by their oil content) using a solvent. Oil extraction is carried out in an extractor in which the extracted material is in contact with a solvent (hexane). The result is a missella.
2 – Distillation of the solvent from the meal – the effect of deaf and sharp steam on the meal in a state of discharge. Two types of evaporators are used for heat treatment:
- vat evaporators (toasters) in which the solvent is distilled from the material in a movable layer;
- screw evaporators in which the solvent from the meal is distilled in a partially suspended layer.
3 – Distillation of a miscella is a process of distilling a solvent from a miscella,
aimed at obtaining an oil with indicators that meet the
requirements of standards.
4 – Solvent regeneration and recovery - preservation and return to production of the solvent removed from the miscell and meal by distillation. Solvent vapors formed during heating of the miscell and meal are passed through cooling heat exchangers-condensers. In this case, the main part of the vapors is regenerated, which is in the form of concentrated vapors. Some of the solvent vapors form low-concentration gas-air mixtures. The capture of a solvent from a low-concentration air mixture is called recuperation.
All technological processes for obtaining vegetable oil by extraction are processes of a continuous production cycle that operate automatically and are controlled from a computer.
The composition of the processing line
- Extractor;
- The toaster;
- Heat exchangers.
Advantages of the extraction method
- Low residual oil level, less than 1% oil in the cake (high oil yield);
- Low labor intensity and easy maintenance of equipment;
Disadvantages of the extraction method
- The use of toxic solvents, flammable and volatile substances;
- Difficult separation of the extraction reagent from the diluent.
- Good meal quality.
Advantages of the equipment
Robust construction
Stable and reliable production
Maximum efficiency
Easy to operate
Easy maintenance
It will save space
Low maintenance costs
Long service life