The requirements of leaching equipment for solvents are mainly as follows:
Chemically stable: it does not react chemically with grease and meal, and has little corrosive effect on mechanical equipment.
The dielectric constant is similar to that of grease: it can dissolve grease in any proportion and extract grease from oil at room temperature or at low temperatures.
Oil refining equipment.
Only dissolves the grease in the oil: There is no solubility for non-oily substances in the oil.
Good volatility: It is easy to separate from the grease after leaching, and can be removed from the meal at a lower temperature.
Oil refining equipment.
It is not corrosive to the equipment: in order to prolong the service life of the equipment and reduce the production cost.
Safety: Not easy to catch fire and **.
The boiling point range is small: the boiling point range is also called boiling range and coercion, that is, the solvent can be steamed and stored within this boiling point range.
Oil refining equipment.
Solvents that meet these requirements can be called ideal solvents, but no solvent has been found that fully meets these requirements. In the actual production of oil leaching, it is often necessary to compare the properties of the selected solvent with the properties of the ideal solvent and try to minimize the deviation from it. Oil refining equipment.