Leaching equipment manufacturers tell you: What is the solvent requirement for oil leaching?
One: What is the solvent requirement for oil leaching that the manufacturer tells you? Oil extraction equipment, new automatic screw oil press, oil press complete sets of equipment, oil filtration equipment, oil refining equipment, filling equipment and other oil equipment related problems consulting.
Two: the solvent requirements for oil leaching
Generally speaking, there are two main requirements for the solvent used in oil leaching: the extraction rate obtained in the leaching process; The second is to obtain high quality oil and finished meal after leaching. Other requirements are to avoid the harmful effect of solvents on the human body as far as possible to ensure the safety of production operations. Therefore, the specific requirements for solvents used in the oil industry are as follows:
1. Good solubility to grease
The selected solvent should be able to dissolve the grease fully and quickly, and can dissolve each other in any proportion with the grease; Insoluble or rarely dissolve other fat-soluble substances in the oil, and can not dissolve other non-oil components in the oil.
2. Stable chemical properties
The higher the chemical purity of the solvent, the better (except for the mixed solvent). Solvent in storage and transportation, in the heating or condensation process of each process of leaching production, does not decompose, polymerization and other chemical changes that cause changes in the chemical composition and nature of the solvent, does not react with any component in the oil, and should not have a corrosive effect on the equipment.
3. Easy to separate from oil and meal
Solvent can be fully volatilized from oil or meal at low temperature. It should have a stable and suitable boiling point, low hot melt, small latent heat of evaporation, and easy recovery. It is not miscible with water and does not form an azeotrope with water.
4. Good safety performance
The right, whether solvent liquid, solvent gas or solvent vapor mixed with water vapor, shall be harmless to the health of the operator. The oil after the removal of the solvent should not have the bad smell and taste of the solvent, and the solvent should be not easy to burn and not easy.
5, conducive to environmental protection
Many solvents have adverse effects on the environment or the atmosphere, even irreversible effects, in the production process, they will be consumed, will enter the atmosphere as a gas to pollute the air, or in the way of wastewater discharged to the ground seriously affect the water source, so the choice of solvents is a long-term research work.
6. Solvent source
7. The supply of leaching solvents should be able to meet the needs of large-scale industrial production, and the price of solvents should be cheap and the source should be sufficient.
A solvent that completely meets the above requirements can be called an ideal solvent, but so far such a solvent has not been found. In the actual oil immersion production, the properties of the selected drop agent are compared with those of the ideal solvent, and the deviation from the procedure is minimized.
