Fecha de publicación: 22/12/2022 Fuente: WIPO (eseential oils OR extracts) Equipment to extract sludge (crud) from the interface (5) that is generated in a mixer-settler (mixer-settler) (1) in a solvent extraction process between an aqueous phase (3) and an organic phase (4) which allows continuous vacuum extraction and storage of said sludge, where the equipment comprises: a sludge collector (2) comprising: a transparent rigid tube (18), a plurality of floats (19) freely mounted along of said tube (18), a tube elbow (20) at a first end of the transparent rigid tube (18), a tube extension (20′), at the other end of the elbow (20), a suction nozzle (23) at the end of the tube extension (20′), an angle change handle (21) near a second end of the transparent rigid tube (18) to rotate the sludge catcher (2) according to the axis longitudinal (18′) of the transparent rigid tube (18), an extraction regulating valve (22) mounted on the gear change handle angle (21) that regulates the suction pressure inside the transparent rigid tube (18); a vacuum tank (6) that receives the sludge from the sludge collector (2); a vacuum system (7) that generates a vacuum inside the vacuum tank (6) to produce suction or vacuum suction in the sludge collector (2); and a pneumatic pump (8) that extracts the sludge from the tank vacuum (6) and transfers them to a plurality of containers (9) for storage; Method to extract lees (crud) from the interface that is generated in a mixer-decanter.