It is well-established that clays have a negative impact on every stage of mineral beneficiation, including flotation. As rich deposits are depleted and poor, fine-disseminated ores become more involved in development and processing, the challenges that clays present become more pressing, since the clay content in the pulp may reach up to 10%. The presence of large amounts of clay in the ore may lead to increased pulp viscosity, and corresponding growth of hydrodynamic forces, preventing the attachment of particles to the bubble surface and tending to detach previously attached particles; thus, leading to a drop in the recovery of valuable minerals, and the deterioration of the concentrate grade. Compared with other clays, montmorillonite readily absorbs water between the silica sheets, causing it to swell almost 20-fold and increasing its volume content in the pulp. Since bentonite mainly contains montmorillonite, it produces a greater negative effect on flotation than other clays, significantly increasing pulp viscosity. The most promising approach to reduce clay content in the pulp is desliming it in a hydrocyclone. Since a significant amount of water is removed from the pulp during this process, it may be returned to the pulp after separating the clay from a portion of the pulp selected in the hydrocyclone through flocculation, sedimentation, and flotation. The separation process can be accelerated by applying “ultraflocculation.” This method differs from conventional flocculation, as in this case, after the introduction of the flocculant into the suspension, it is subjected to intensive mixing for several seconds, which leads to the formation of large and dense floccules. These floccules are then quickly separated from the aqueous phase by sedimentation. Additionally, the effectiveness of suspension separation can be enhanced by using the microflotation technique to treat the supernatant discharged from the thickener. This research evaluated the separation effectiveness of an ultrafine bentonite suspension (concentration: 3 g/L) using ultraflocculation and sedimentation-microflotation in an inclined tubular separator at varying doses of flocculant (Magnafloc 1011), f lotation collector (CTAB), and the shear rate of the suspension in the flocculator. It has been established that for suspension processing time in the flocculator of 6 seconds, the optimal dose of the flocculant shall be 0.7 mg/g, and the optimal shear rate in the flocculator must be 1000-1500 s-1. Additionally, it was found that when using a tubular separator with a diameter of 2 cm and a length of 50 cm, inclined at 45°, and setting the suspension processing time to 2.5 minutes, a recovery of clay higher than 99.8% can be achieved, even without using microflotation.