Solvent-extract filter apparatuses and methods

A filter apparatus for filtering a solvent-extract mixture, the filter apparatus including:

• (a) an elongated housing defining a housing longitudinal axis;
• (b) a filter input port to the housing and a filter output port from the housing;
• (c) a mixture flow path defined within the housing and extending from the filter input port to the filter output port, the filter input port being in fluid communication with the output port through the mixture flow path;
• (d) two or more filter medium receiving volumes defined along the mixture flow path, each filter medium receiving volume configured to receive a filter medium and contain the filter medium in the respective filter medium receiving volume,
• wherein a total length of the filter medium receiving volumes along the housing longitudinal axis is longer than the length of the housing along the housing longitudinal axis;
• and
• (e) first and second removeable end covers arranged at first and second opposite ends of the housing when placed in respective operating positions at the first and second ends of the housing.