The invention provides a
scandium extraction pretreatment
system, and a treatment method for a
scandium-containing solution. The
scandium extraction pretreatment
system comprises a hardening and
tempering part provided with a first inlet, a second inlet and a hardening and
tempering liquid outlet, an aging and
settling part, a
fixed bed and a first transfer pump, wherein the first inlet is used for inputting the scandium-containing solution, the second inlet is used for inputting concentrated
sulfuric acid, and the hardening and
tempering liquid outlet is used for outputting hardening and tempering liquid; the aging and
settling part is provided with a first overflow port, a first liquid inlet and a first
slag discharging port which are distributed from top to bottom, and the first liquid inlet communicates with the hardening and tempering liquid outlet; the
fixed bed is provided with a second liquid inlet, a second overflow port and a second
slag discharging port which are distributed from top to bottom, and the second liquid inlet communicates with the first overflow port; and both the first
slag discharging port and the second slag discharging port communicate with the first transfer pump. By adopting the scheme, the content of
solid particles in the scandium-containing solution can be effectively reduced, and the aging and
settling process is completed; a plurality of tanks are not needed, and the equipment investment is low; and the
production cycle of a product is shortened.