Solvent extraction apparatuses and methods

A method of automated extracting compounds from compound-bearing plant material, the method comprising:

• cooling, to at least 35 degrees Fahrenheit or colder, a solvent mixture that comprises a co-solvent and at least one of N-Butane and Isobutane, thereby providing a cooled liquid solvent mixture;
• opening, via at least a control module, at least a first automated valve that is arranged between a first tank of an extraction system and an extraction column of the extraction system;
• transporting the cooled liquid solvent mixture from the first tank to the extraction column via a solvent line arranged between the first tank and the extraction column, which holds the compound-bearing plant material and is arranged downstream of the first tank;
• soaking, after the transporting the cooled liquid solvent mixture step, the compound-bearing plant material in the cooled liquid solvent mixture for a user-set soak time, thereby producing an extracted solution that includes the compounds, wherein, during the soak time, no further solvent is introduced to the extraction column and the extracted solution remains in the extraction column;
• opening, via at least the control module, at least a second automated valve that is arranged between the extraction column and a collector of the extraction system;
• transporting, after the soaking step, the extracted solution from the extraction column to the collector;
• and
• collecting, by the collector, at least solute of the extracted solution.